Christine W. Willacker, PA
Physician Assistant · Ann Arbor, MI
Christine W. Willacker, PA is a physician assistant with a practice address in Ann Arbor, Michigan, and NPI 1194876904, issued on Jan 16, 2007. Check the license (Michigan 5601002149, as entered in NPPES) with the Michigan board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christine W. Willacker
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 5601002149 MI
Self-reported in NPPES; status is on the state search - Practice location
- 1500 East Medical Center Dr, Ann Arbor, MI 48109
- Phone
- (734) 647-8906
- Enumerated
- Jan 16, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070216000620); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 6,989 in Michigan → Look up another NPI →
Also registered at 1500 East Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Samia Abdelnabi, CNMAdvanced Practice Midwife1639404320
- Mahshid Abir, MDEmergency Medicine Physician1790988632
- Barbara Adams, MDPediatric Rheumatology Physician1962412577
- David Adams, MBBSAnesthesiology Physician1346484417
- Gaury Adhikary, MDAnesthesiology Physician1629094297
- Jeremy Adler, MDPediatric Gastroenterology Physician1033243191
Verify Christine W. Willacker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 5601002149Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average physician assistant in 2024
138 Medicare Part D claims for 65 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.
Most prescribed
- Clobetasol Propionate37 claims
- Nystatin21 claims
- Triamcinolone Acetonide18 claims
- Fluconazole12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $119.70
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Regents OF The University OF MichiganAnn Arbor, MI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christine W. Willacker among 6,989 physician assistant records in Michigan
Christine W. Willacker, PA is one of 6,989 physician assistant records with a practice address in Michigan. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 17% of them.
- NPI issued2007 · 17% of these records are older, 76% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1992 · median 2017 among the 4,739 with a school on file
- Record last updated2007 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
610 physician assistant records list a practice address in Ann Arbor
They are 610 of the 15,616 NPPES records with a practice address in Ann Arbor, and 6,989 physician assistant records in Michigan.
All 6,989 in Michigan → Every provider in Ann Arbor → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Joseph Allgeyer, PAAnn Arbor, MI 481091558338426
- Kimberly Bernreuter, PAAnn Arbor, MI 481091942270095
- Martin Bond, PAAnn Arbor, MI 481091245226364
- Andrea Botterill, PAAnn Arbor, MI 481091356343370
- Elizabeth Dubois, PACAnn Arbor, MI 481091821096074
- Laura Durecka, PA-CAnn Arbor, MI 481091871575712
- Jillian Etcubanez, PA-CAnn Arbor, MI 481091184604365
- Heather Fox, PAAnn Arbor, MI 481091437146297
Common questions
What is Christine W. Willacker, PA's NPI number?
Christine W. Willacker, PA's National Provider Identifier (NPI) is 1194876904, issued on Jan 16, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Christine W. Willacker, PA located?
The NPPES record lists a practice address at 1500 East Medical Center Dr, Ann Arbor, MI, 48109. Phone: (734) 647-8906. Providers update this record themselves, so call before visiting.
How can I verify Christine W. Willacker, PA's license?
NPPES lists Michigan license number 5601002149, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
How much does Christine W. Willacker, PA prescribe under Medicare Part D?
In 2024, Christine W. Willacker, PA had 138 Medicare Part D claims for 65 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.