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Reimbursement FAQ's

 

Q: Can you give me some direction on billing for Advanced Practice Nurse services?
A:
Many APNs erroneously assume that getting an APN license removes all barriers to getting their services reimbursed by insurance companies. Obviously, the goal is "direct reimbursement"; that is, being able to bill in the APN's name. There is no question that billing under a physician's name simply perpetuates the invisibility of APNs. Direct reimbursement requires APNs being accorded some sort of provider status by a reimburser. For Medicare, the process involves getting a Provider Identification Number (PIN), which is in the process of transitioning to the National Provider Identifier (NPI). It should be noted that Medicare was issuing PINs to Illinois APNs a full two years before the APN rules for our practice act were written. And Medicaid in Illinois was willing to directly reimburse some APNs even before Medicare, albeit at a low rate.

The first concept that must be understood is that Medicare and Medicaid are not the same thing. Medicare is a program created for the elderly (over age 65) and some people who are permanently disabled. It is a federal program regulated through the Social Security Act, and thus dependent on laws enacted by the U.S. Congress and rules generated by the U.S. Department of Health and Human Services. Medicaid, on the other hand, is a program for the indigent, and its funding is shared between the federal government and each individual state government. In general, the laws/rules governing Medicare are the same from state to state. Medicaid benefits, however, vary tremendously from state to state, due to the fact that state governments must contribute to the funding of the program, which gives them some say in how their money is being spent. While there are some basic services that all states are expected to provide Medicaid recipients, each state is allowed a fair amount of leeway regarding what additional benefits they may wish to cover. As a result, a Medicaid program is largely dependent on the legislators and governmental officials in each state.

Many APNs have heard the adage, "as goes Medicare, so does everybody else," which has led to the common misconception that if a provider gets a Medicare PIN, s/he automatically will be reimbursed by every other insurance company, including HMOs and PPOs. WRONG! Insurance companies can and do develop their own policies; what one company allows another one may not. And what one company allows in one state may not be allowed in another state. In fact, if one company has three product lines (fee-for-service, HMO, PPO), it may have three different policies for APNs, even within the same state. In order to become a recognized provider for every insurance plan that your patients have, you have to apply for provider status with each and every insurance company, including Medicaid. By the way, this is exactly what physicians have to do. Simply having a physician license doesn't ensure reimbursement.

Furthermore, even the same product line in the same company in the same state may have variations. Insurance policies are actually individual contracts between an insurance company and an individual or employer. Each employer has the right to craft a unique contract that stipulates the specific benefit package available to the employees. If an employer chooses to be generous, s/he may opt to enhance the basic package the insurance company offers. In such situations, the employees may enjoy greater benefits (e.g., home health nursing after a hospitalization) than other employer groups. On the other hand, if the employer wishes to control costs, s/he may negotiate a contact with fewer benefits (e.g., greater restrictions on the kinds of medications that are covered). You and your spouse might have insurance cards that look identical. However, if you work at one place and your spouse works elsewhere, the scope of benefits provided by your respective policies can vary immensely.

Medicare Basics

All that being said, since Medicare is such a huge program, it is helpful to grasp its basics elements. There is Medicare Part A, which covers hospital, home health/hospice, and skilled nursing home charges, and Medicare Part B, which covers most outpatient services, specifically the care patients receive from "doctor's offices." There is also Medicare C, Medicare+Choice, which is the managed care option, and Medicare D, the new drug payment option. The remarks below refer to only Medicare Part B billing. Furthermore, they do not apply to federally qualified health centers that serve Medicare patients.

When it comes to an APN's services, an office practice has two billing options for Medicare Part B:

1. An APN's services can be billed under a physician's name, and Medicare reimburses the practice 100% of whatever Medicare thinks is "usual and customary." However, if a practice does choose to bill under a physician's name, the physician and APN must abide by the "incident to" rules of which there are three basic criteria:

(a) The physician has to be in the office when the APN renders care (in the suite of offices, not across the street making rounds in the hospital!).

(b) The APN cannot see patients new to the practice.

(d) The APN cannot see established patients with a new problem.

The reason for criteria (b) and (c) is that billing under the physician's name implies that s/he initiates and updates the patient's plan of care. Sometimes meeting all of the "incident to" criteria can be logistically difficult. If a physician has to suddenly leave the office, then the practice can't bill for the services that the APN renders to Medicare patients while the physician is absent. And meeting criteria (c) can be complicated for a busy office, because if a patient comes for a routine visit (e.g., diabetes monitoring) and suddenly reveals to the APN that s/he has a new problem (e.g., leg ulcers), the APN has to pull the physician in to assess--and chart on--the patient. It is not acceptable for the APN to perform the entire history and physical, chart on the patient, and have the physician simply co-sign the APN's charting. The physician is responsible for personally performing the necessary components of the history and physical and personally documenting the care (i.e., the new treatment plan). It is clear that meeting this expectation can send APNs' and physicians' schedules into a tailspin if very many patients come to see the APN for "routine" monitoring and suddenly launch into a lengthy "Oh, by the way..." mode. One more thing, neither "incident to" billing nor direct billing require a physician to co-sign an APN's charting!

2. Alternatively, the APN can obtain her/his own PIN from Medicare. In Illinois providers obtain Medicare PINs from Wisconsin Physician Services (WPSIC), the company that serves as the Medicare carrier for Illinois and some other states. Billing under the APN's PIN means that the practice gets 85% of the physician rate, BUT it has the advantage that the incident rules do NOT apply. Therefore, the physician does not have to be on site when the APN renders care, the APN can see patients new to the practice, and the APN can see established patients with new problems. Some practices express concern about billing under the APNs' own PINs because of the "loss of 15%." However, a practice actually can make more money by billing under the APN's number because:

(a) As noted above, abiding by incident to involves complicated logistics for the office personnel, and

(b) Since there are no restrictions of the types of patient an APN can see, there is the possibility that the APN's services can be billed using higher E/M codes.

Furthermore, since most APNs make less than 85% of a physician's salary, the practice is still getting a profit from APN visits.

Last, but not least, billing "incident to" exposes a practice to more frequent and careful audits, since Medicare is very concerned that practices really do abide by the incident to rules. This, in turn, carries greater risk of being accused of Medicare fraud or abuse than billing under the APN's PIN. Such accusations can lead to a practice having to, minimally, give money back to Medicare. Furthermore, if the fraud and abuse is deemed egregious, a practice may be fined--in the thousands of dollars. Finally, it is theoretically possible that people in the practice (including clinicians) could go to jail. Needless to say, a practice should avoid anything that might indicate fraud and abuse.

By the way, Medicare does allow physician assistants (PAs) to get their own PINs and the rules described above also apply to them However, the Illinois PA practice act stipulates that payment for PA services "shall be made to his or her employer...." This is because PAs are "supervised" by physicians, versus the collaborative arrangement that APNs have with physicians. This is just one of several differences between APN and PA practice in Illinois and in other states.

Information on applying for a Medicare PIN can be obtained from the Wisconsin Physician Services at www.wpsic.com. Click on "Providers" on the home page, then surf through the various links on the "Providers" page.

As noted above, we are now in the transition period regarding applying for the National Provider Identifier (NPI). If you already have a Medicare PIN, Eventually, your individual NPI will be the only number that you will need for billing across all insurance companies.

Medicaid Basics

Illinois Medicaid, on the other hand, does NOT require that practices abide by incident to rules, and it had been very common to bill for APN services under the physician's name, even if the physician is rarely on site where the APN renders care. For years APNs had been able to get their own Medicaid PINs; however, the policy had been that they could reimbursed only 70% of the physician's rate, so very few Illinois APNs had bothered to do this. (Note: This 70% reimbursement did not apply to federally-qualified health centers.)

However, as a result of negotiation in 2005 between ISAPN and the Illinois Department of Healthcare and Family Services in (formerly the Illinois Department of Public Aid), these rules were changed, so that as of January 1, 2006, APNs will be reimbursed at the same rate as physicians. There are other positive changes include. For example, prior to January 1, 2006, Illinois Medicaid reimbursement had been limited to only certified registered nurse anesthetists (CRNAs), certified nurse midwives (CNMs), family nurse practitioners (FNPs), and pediatric nurse practitioners (PNPs). In other words, the whole host of other NP specialties were not allowed to obtain Medicaid PINs. Furthermore, the Medicaid "enhanced rate" (higher than the typical 100% rate) that has been available to certain physicians who offer maternal-child services had not been available to APN who render the same services.

Thankfully, these three reimbursement discrepancies were eliminated as of January 1, 2006, so APNs with their own PINS will be reimbursed at 100% of the physician rate, all types of APNs (including all NP specialties) will be eligible for direct reimbursement, and some APNs will be eligible for the enhanced maternal-child rate. Unfortunately, there is one category of Medicaid reimbursement that will remain unavailable to APNs; namely, certain psychiatric services, specifically those that are described as "psychotherapy," covered under the CPT codes of 90804 thru 90899. Such services must be performed and billed by only a physician, which means that psychologists and social workers can't bill for these services either.

BlueCross BlueShield of Illinois

Although the BlueCross BlueShield of Illinois (BCBSIL) PPO has been reimbursing CRNAs and CNMs for their services for several years, NPs and CNSs had not been accorded the same benefits. However, as of November 1, 2005, that situation was finally changed and NPs and CNSs were added to the PPO Network. The caveat to that November 1 date is that NP and CNS specialties will be added upon group renewal, meaning as employer groups renew their contracts with BCBSIL. And as noted above, it is important to understand that BCBSIL employer contracts are not identical. Employer groups may negotiate enhancements or limitations in benefits based on the premiums they are willing to pay. The only way to know for sure what the unique benefits are for an employer group is to review the employee handbook, call the member services number listed on the back of one's BCBSIL card, or review the policy and/or contract written specifically for that employer group.

Any APN, regardless of specialty, who enters a contract with BCBSIL (i.e., to be reimbursed in his/her own name) will receive 85% of the rate that physicians receive. That percentage is identical to the rate that Medicare offers-however, this is where similarity between the BCBSIL and Medicare ends. If an APN is employed by a physician or physicians' group and that practice wishes to continue to bill under a physician's name, the practice may do so-and the reimbursement rate will remain at the 100% level. Furthermore, BCBSIL does not have the equivalent of Medicare's "incident to" rule. In other words, a practice may bill for an APN's services even if the physician is not on site when the care is rendered. Furthermore, unlike Medicare, BCBSIL does not restrict APNs from seeing patients new to a practice or established patients with new problems. Therefore, APNs who do not intend to bill on their own should not apply to participate in the PPO network. A major advantage, however, of APNs becoming contracted providers is that their name and practice site will appear in the list of providers that BCBSIL issues its insured members, which is enormously helpful if a patient is seeking the care of an APN.

Joining the PPO network requires completing a contract with BCBSIL. As a result of years of discussion with BCBSIL, many NPs and CNSs may have already received and returned such contracts. However, given that BCBSIL has been working off a list developed several years ago, it is likely that circumstances have changed for many APNs, including the fact that a number of APNs have obtained licensure during that time. Therefore, any APN wishing to enroll as a provider in the BCBSIL PPO Network can obtain an application at www.bcbsil.com. Click on the "Provider" link at the top of the homepage; then click on "Request a Contract Application" on the left frame of the provider page. Clicking on "Forms" in that same frame will take you to the fee schedule. Take 85% of those fees to determine the rate for APNs. Providers may also seek assistance via the Providers' Telecommunications umber, 800-972-8088.

BlueCross BlueShield of Illinois has stipulated certain criteria for "assistant at surgery" APNs regarding reimbursement. The plan has extended "assistant at surgery" benefits to the following allied health practitioners:

  • Certified Nurse Practitioners (CNPs)
  • Clinical Nurse Specialists (CNSs)
  • Physician Assistants (PAs)

To ensure appropriateness of care, coverage for assistant surgery is limited to the following criteria:

  • Services performed must be defined by the BCBSIL contract as eligible for assist-at-surgery
  • Services rendered must be performed in a state-licensed hospital or ambulatory surgery center

Assistant surgery claims for a CNPs, CNSs or PAs must be submitted under the provider number of a contracted BCBSIL physician, physician group, podiatrist or dentist. Charges for assistant at surgery services must be reported with the HCPCS Assistant at Surgery (AS) Modifier.

Everybody Else

As said above, there are no standard rules for private insurers (indemnity plans, PPOs, HMOs). Any insurance company can establish its own policies. Many insurers are "silent" on the issue of APNs rendering care and billing under the physician's name. The only way to know what the policies of all the different insurers are is to read their respective policy manuals. Bear in mind that if you call insurers to ask what their policies are, the person who answers the phone may not have the proper information. Indeed, the terms "advanced practice nurse", "nurse practitioner", etc. are still foreign to many people, even in the insurance world. Therefore, be prepared to be bounced around from department to department and to have to leave a lot of messages, since invariably the person you need to talk to won't be sitting at his/her desk. In any case, if you don't like the answer you get on the telephone, don't be afraid to ask to speak to someone else higher in the organizational hierarchy.

Being informed about reimbursement is the responsibility of every single APN. You can NOT let others in your practice (e.g., billing clerks and office managers, etc.) be the experts in APN reimbursement. If you want to be marketable it is up to you to know the policies, rules, and regulations that affect your practice. Listed below are some other sources of information:

1. There are two excellent books on reimbursement by Sheila Abood and David Keepnews: Understanding Payment for Advanced Practice Nursing Services: Volume One: Medicare Reimbursement (2000) and Understanding Payment for Advanced Practice Nursing Services, Volume 2: Fraud and Abuse (2003). Both books can be bought from the ANA publications web site at: www.nursingworld.org. Click on "Publications" on the left frame of the home page.

2. Another outstanding summary of reimbursement is provided by Carolyn Buppert, NP, JD, at www.medscape.com:
--Find the box: "Profession Sites"
--Click on "Nurses", which takes you to the "Nurses" home page.
--Scroll down to: "Editor's Choice"; "Billing for Nurse Practitioner Services: Guidelines for NPs, Physicians, Employers, and Insurers. This link goes for several screens, but it pretty much sums up the reimbursement issues.

3. For ongoing updates about "non-physician" reimbursement, there is a newsletter that you or your practice can subscribe to. It's called Non-Physician Practitioner News. Subscription information is available at www.decisionhealth.com or by calling (877) 602-3835. You can get the subscription both by snail mail and/or e-mail. There's also a way to get access to back issues online, which is VERY useful. Furthermore, subscribing to the newsletter allows you to sign up for a listserv, which is an excellent way to pose specific questions about billing--especially if the newsletter provides information that may be subject to regional variations. If you are able to persuade your practice to pay for the subscription, so much the better. However, this newsletter provides information that every APN should want to have access to, even if it means paying out-of-pocket. Subscription prices vary. From time to time, Decision Health runs "specials" by offering a discount for those with professional memberships, and ISAPN has been included in those time-sensitive specials.

Please note that the current web address for the Illinois Department of Professional Regulation is: www.ildfpr.com (yes, that's ".com," not ".gov"). This is the web site where you can download your practice act and that of many other professions (e.g., physicians, physician assistants, physical therapist, etc.). It's also your resource for information about license renewal, controlled substance licenses and other regulatory issues. Be sure to mark it as a favorite on your web browsers!

Updated February, 2006

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