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 113 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. Lisa Hass, ATCAthletic Trainer1285603530
  2. Ahmed Hassan, RPH, CGPGeriatric Pharmacist1023239381
  3. Fauziya Hassan, MDPediatric Pulmonology Physician1407971583
  4. Nimra Hassan, MD, MPHEmergency Medicine Physician1013757517
  5. Yasmeen HassanBehavior Technician1851014682
  6. Jane Hassinger, MSW, PSYCHOANALYSTClinical Social Worker1043467830
  7. Kenneth Hassler, DOThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1659783348
  8. Hana Hasson, DDSGeneral Practice Dentistry1144344656
  9. Sydney Hastings-WilkinsDoula1588426357
  10. Dania Hatahet, MDInfectious Disease Physician1548581978
  11. John Hatch, D.D.S.Dentist1508201450
  12. Nan Hatch, DMDGeneral Practice Dentistry1225152069
  13. Nigelle Hatch, LPNLicensed Practical Nurse1154633139
  14. Robert Hatcher, PH.D.Clinical Psychologist1457569865
  15. Sherry Hatcher, PH.D.Psychologist1235335522
  16. Carrie Hatcher-Kay, PHDClinical Psychologist1275549834
  17. Joseanna Hatchett-Kimball, LPCProfessional Counselor1265367890
  18. Andrea HatfieldAdult Development & Aging Psychologist1609509660
  19. Bradley Hatfield, MT-BCMusic Therapist1003320300
  20. Caroline Hatfield, LLSWClinical Social Worker1932865219
  21. Elizabeth Hatfield, DDSDentist1972031573
  22. Kayla HattBehavior Analyst1780296574
  23. Laura Hatton, MS, LLPPsychologist1134355589
  24. Rebecca Hatton, PSYDClinical Psychologist1689706079
  25. Kayla Hauck, LMSWClinical Social Worker1417408428
  26. Kristin HaudekOccupational Therapist1174992556
  27. Samantha Hauff, MDEmergency Medicine Physician1851419303
  28. Michael Haupt, MDStudent in an Organized Health Care Education/Training Program1831830306
  29. Zachary Haupt, M.D.Internal Medicine Physician1457762775
  30. Megan Hauptman, MDInternal Medicine Physician1134813181
  31. Mark Hausman, MDAnesthesiology Physician1992825624
  32. Jolene Havenga Chambers, RNAmbulatory Care Registered Nurse1124725403
  33. Tara Havens, M.D.Pediatric Pulmonology Physician1235519539
  34. Shanna Haver, LLBSWMental Health Counselor1689034423
  35. Renee Havey, DNP, RNAdult Health Clinical Nurse Specialist1790502805
  36. Julia HavilandBehavior Technician1205509478
  37. Deborah Hawker, RNRegistered Nurse1467600882
  38. Hillary HawkerOther Technician1841977352
  39. Camryn Hawkins, MDStudent in an Organized Health Care Education/Training Program1336082932
  40. Daphne Hawkins, RRTRegistered Respiratory Therapist1659098820
  41. Marten Hawkins, MDInfectious Disease Physician1609336023
  42. Ousa HawkinsRegistered Nurse1255578787
  43. Rachel Hawkins, LLMSWClinical Social Worker1407102536
  44. Robert Hawkins, MD, MSCThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1144563867
  45. Eric HawleyMassage Therapist1982840377
  46. Caroline Hay, NPNurse Practitioner1942174784
  47. David Hay, LMSW, LCSW, LISWClinical Social Worker1952188252
  48. Ian Hay, PHARMDPharmacist1881427169
  49. Bishr Haydar, MDAnesthesiology Physician1922134337
  50. Brian Hayes, M.A.Psychologist1740512524

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.