NPPES file of Aug 9, 2026

Doctors and health care providers in Ann Arbor, MI

15,616 individual NPPES records list a practice address in Ann Arbor, 4th of 515 Michigan cities. The largest group is clinical social worker: 1,236, 8% of the city's records, against 6% across Michigan. Page 108 of 313.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Ann Arbor

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Ann Arbor in Michigan

  • Rank in Michigan4th of 515 cities by records
  • Share of the state5.5% of Michigan's records
  • Specialties present25 or more taxonomy codes
  • Top three groups22.1% of all records
  • Clinical Social Worker rank3rd of the 10 Michigan cities with the most

Compared with Michigan as a whole, Ann Arbor has 4.2× the state's share of anesthesiology physician records and 0.29× its share of behavior technician records.

Providers in Ann Arbor, alphabetically

  1. Penelope Halkiadakis, MD, MPHOrthopaedic Surgery Physician1568255982
  2. Anne Hall, PA-CPhysician Assistant1528327822
  3. Brian HallStudent in an Organized Health Care Education/Training Program1801466040
  4. Cimone Hall, NPGerontology Nurse Practitioner1972181204
  5. Claudia Hall, MAMental Health Counselor1861914178
  6. Colleen Hall, NPNurse Practitioner1194078204
  7. Karen Hall, M.D., PH.D.Geriatric Medicine (Internal Medicine) Physician1134214687
  8. Kathryn Hall, MSWSocial Worker1134592645
  9. Kelli Hall, PHD, N.P.Family Nurse Practitioner1154434793
  10. Kelly Hall, NPNurse Practitioner1629198478
  11. Kristina HallBehavior Technician1174250955
  12. Levi Hall, PHARM.D.Pharmacist1770841603
  13. Meridith Hall, DDSDentist1114031747
  14. Nicole Hall, MSWClinical Social Worker1073192993
  15. Patricia Hall, CNPPediatric Nurse Practitioner1528111077
  16. Raigan HallBehavior Technician1720952542
  17. Sara Hall, AGACNPNurse Practitioner1811672280
  18. Tamara Hall, LCSWClinical Social Worker1144732553
  19. Kellie Hallaron, RDNRegistered Dietitian1891352571
  20. Monira Hallaway, LMSWClinical Social Worker1881711307
  21. Amanda Hallberg, MDFamily Medicine Physician1255429320
  22. Blake Haller, MDInternal Medicine Physician1780112318
  23. Christina Hallmann, LLMSWClinical Social Worker1235727272
  24. Margaret Halloran, NPNurse Practitioner1497220131
  25. Brian Hallstrom, MDOrthopaedic Surgery Physician1609877984
  26. Kirsten Hallstrom, PTPediatric Physical Therapist1144567520
  27. Ross Halpern, P.H.D, L.P.Psychologist1366405474
  28. Jane Halpert, TLLPProfessional Counselor1568342780
  29. D. Yarrow Halstead, M.A., CPSSCommunity Health Worker1417390485
  30. Timothy HalsteadSocial Worker1235610742
  31. Chelsea Halsted, DOStudent in an Organized Health Care Education/Training Program1326568973
  32. Jeffrey Halter, MDGeriatric Medicine (Internal Medicine) Physician1902987357
  33. Steven Halter, MDAnesthesiology Physician1871013425
  34. Douglas Ham, CRNACertified Registered Nurse Anesthetist1467145847
  35. Hannah Ham, PHDClinical Child & Adolescent Psychologist1619480639
  36. Jason Ham, MB, BCH, BAOInternal Medicine Physician1275513624
  37. Maysa Hamade, M.D.Neurology Physician1003294844
  38. Sacha Hamady, RDRegistered Dietitian1629244520
  39. Reem HamamiSpeech-Language Pathologist1962382762
  40. Erin Hamanishi, MDPediatric Hematology & Oncology Physician1043863327
  41. Lauren Hamann, BCBA, LBABehavior Analyst1104523877
  42. Kouther HamayelBehavior Technician1346085628
  43. Joel Hamel, PA-CPhysician Assistant1346529476
  44. Robert Hamel, PAPhysician Assistant1992923148
  45. Jonathan Hamer, O.D.Optometrist1154468676
  46. Andrea Hames-FrazierBehavior Analyst1811756414
  47. Aimee HamiltonElectroneurodiagnostic Specialist/Technologist1144572827
  48. Anita Hamilton, CNPNeonatal Nurse Practitioner1992063937
  49. Barbara Hamilton, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1508123696
  50. Catharine Hamilton, M.S.Student in an Organized Health Care Education/Training Program1467072454

The largest Michigan cities

  1. Farmington Hills36,305
  2. Detroit19,832
  3. Grand Rapids18,005
  4. Novi7,641
  5. Kalamazoo6,553

All of Michigan →

How to read this directory

Ann Arbor, Michigan appears in the CMS National Plan and Provider Enumeration System with 15,616 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Ann Arbor - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Ann Arbor practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Ann Arbor is weighted toward Clinical Social Worker (1,236 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,217 and Behavior Technician with 1,000). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Michigan's population, Ann Arbor reports roughly 155.6 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

Of Michigan's most common specialties, Family Nurse Practitioner is the most prominent one with no provider currently listing a Ann Arbor practice address, a coverage gap Ann Arbor patients typically fill by traveling to a larger nearby hub.

For Ann Arbor patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Ann Arbor, MI?

There are 15,616 registered healthcare providers in Ann Arbor, MI, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Ann Arbor?

The most common specialties in Ann Arbor are Clinical Social Worker, Student in an Organized Health Care Education/Training Program, Behavior Technician, Nurse Practitioner, Physician Assistant. Clinical Social Worker has the most providers with 1,236.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

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.