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 204 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. Maya NovitskyTechnician/Technologist1255074241
  2. Madison NovyBehavior Technician1861171761
  3. Stephanie NowakowskiLicensed Practical Nurse1629782883
  4. Sarah Nowitzke, MSWClinical Social Worker1326136771
  5. Mary Nowlin, PA-CPhysician Assistant1366520892
  6. Emily Noyes, PHDClinical Psychologist1134827678
  7. Shaletta Nuckolls, PA-CPhysician Assistant1568083426
  8. Barry Nuechterlein, M.D.Anesthesiology Physician1154598043
  9. Madison Nufer, MDStudent in an Organized Health Care Education/Training Program1053259333
  10. Megan NufferStudent in an Organized Health Care Education/Training Program1114893799
  11. Clark Nugent, MDMaternal & Fetal Medicine Physician1902993769
  12. Gabriel Nunez, MDAnatomic Pathology Physician1821170887
  13. Jetta Nunez-MuraStudent in an Organized Health Care Education/Training Program1093537201
  14. Asma Nusrat, M.D.Anatomic Pathology Physician1003865098
  15. Christina Nutt, NPAcute Care Nurse Practitioner1699028266
  16. Chinomso Nwagwu, MBBSGeriatric Medicine (Internal Medicine) Physician1417272642
  17. Chinazo Nwankwo, MD, MPH, RD, CDCESFamily Medicine Physician1376925610
  18. Francis Nwankwo, M.D.Family Medicine Physician1144232620
  19. Nelson Nwannunu, MDAnesthesiology Physician1124605159
  20. Chika Nwosu, MDAnesthesiology Physician1326406125
  21. Akua Nyarko-Odoom, MDObstetrics & Gynecology Physician1225872393
  22. Thomas Nycz-Lareau, PAPhysician Assistant1902538697
  23. Alexandria NylanderBehavior Analyst1699262626
  24. Michele Nypaver, MDPediatric Emergency Medicine (Pediatrics) Physician1710063821
  25. Karen O'Banion, MA,CCC,SLPSpeech-Language Pathologist1710456207
  26. Jeff O'Boyle, D.O.Family Medicine Physician1619139821
  27. Edmond O'Brien, M.D.Anesthesiology Physician1679869085
  28. Hope O'BrienStudent in an Organized Health Care Education/Training Program1124815261
  29. Jerrod O'Brien, LPCMental Health Counselor1124427935
  30. Thomas O'Brien, M.D.Internal Medicine Physician1033188545
  31. Victoria O'BrienBehavior Analyst1932612298
  32. Marion O'Bryan, LMSWClinical Social Worker1083746465
  33. Thomas O'Callaghan, MDInternal Medicine Physician1265926331
  34. John O'ConnellClinical Social Worker1639883812
  35. Lauren O'Connell, MDDevelopmental - Behavioral Pediatrics Physician1831355049
  36. Megan O'Connell, PHARMD, BCPPPsychiatric Pharmacist1144188228
  37. Thomas O'Connell, NPNurse Practitioner1104948330
  38. Bridget O'ConnorGenetic Counselor (M.S.)1396464442
  39. Edward O'Connor, MDStudent in an Organized Health Care Education/Training Program1881323236
  40. Erin O'ConnorStudent in an Organized Health Care Education/Training Program1821944273
  41. Thomas O'Connor, MDInternal Medicine Physician1619066859
  42. Thomas O'Connor, M.A.,CCC-AAudiologist-Hearing Aid Fitter1467670463
  43. Brennen O'Dell, DPMPodiatrist1356831408
  44. Kimberly O'Donnell, MDInternal Medicine Physician1962591107
  45. Lisa O'Donnell, MSWSocial Worker1104060342
  46. Ryan O'Dowd, CRNACertified Registered Nurse Anesthetist1700255411
  47. Samantha O'DowdSocial Worker1235965815
  48. David O'Dwyer, MB BCH PHDPulmonary Disease Physician1699172676
  49. Marie Claire O'Dwyer, MB BCH BAOInternal Medicine Physician1932619798
  50. Patrick O'FlynnCase Manager/Care Coordinator1982441119

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.