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 232 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. Jennifer Richardson, BSN, RNAdult Psychiatric/Mental Health Registered Nurse1407562754
  2. Jessica Richardson, CRNPPsychiatric/Mental Health Nurse Practitioner1376965780
  3. Katrina Richardson, NPNurse Practitioner1053399337
  4. Laura Richardson, ODOptometrist1023530680
  5. Rebecca Richardson, MDObstetrics & Gynecology Physician1073133732
  6. Lauren Richey, MDAnesthesiology Physician1598081804
  7. Jennifer Richichi, CEPClinical Exercise Physiologist1881342194
  8. Amber RichmondDay Training/Habilitation Specialist1326979022
  9. Jessica Richmond, M.A.Professional Counselor1356047328
  10. Dana Richter, O.D.Optometrist1861809139
  11. Melissa Richter, LMSWClinical Social Worker1942502414
  12. Mary Rickelmann, RNRegistered Nurse1457076366
  13. Cade RickettsBehavior Technician1881474815
  14. Kathleen Ricketts, RNRegistered Nurse1336275346
  15. Karissa Rickle, LMSWClinical Social Worker1417411331
  16. Richard Rickman, PH.D.Clinical Psychologist1104964956
  17. James Riddell, MDInfectious Disease Physician1205911161
  18. Shelly Riddell, PAPhysician Assistant1861687675
  19. Elin RidenourRegistered Nurse1184015075
  20. Erica Rider, D.O.Pediatric Critical Care Medicine Physician1629503172
  21. Jasmine RidleyBehavior Technician1629789805
  22. Meredith Riebschleger, M.D.Pediatric Rheumatology Physician1508980376
  23. Jessica Rieckhoff, NPNurse Practitioner1578922316
  24. Brandalyn Riedel, PHDHealth Educator1790480051
  25. Lisa Riedel, NPNurse Practitioner1255252102
  26. Ruth Riedeman, PTPhysical Therapist1609379312
  27. Lori Riegger, MDAnesthesiology Physician1245256866
  28. Megan Riehl, PSY. D.Clinical Psychologist1164846176
  29. Rachel Riemenschneider, PA-CPhysician Assistant1790315299
  30. Elyse RiendeauBehavior Technician1255042438
  31. Mary Rievert, MSWClinical Social Worker1154599710
  32. Jalen RievesBehavior Technician1164279675
  33. Vernon Rife, DDSGeneral Practice Dentistry1194858365
  34. Lucas Rifkin, M.D.Student in an Organized Health Care Education/Training Program1134448798
  35. Samara Rifkin, M.D.Gastroenterology Physician1497016828
  36. Taylor Rigby, PHDClinical Neuropsychologist1992492540
  37. Jeanne Riggs, OTRL,CHTHand Occupational Therapist1437650611
  38. Jessica Riggs, PHDClinical Psychologist1518444074
  39. Maryann Riggs, R.NRegistered Nurse1316324254
  40. Nancy Riggs, NPAdult Health Nurse Practitioner1700191004
  41. Alexander Rigney, PHDPsychologist1851177182
  42. Barbara Rigney, PH.D.Psychologist1114230992
  43. Briana RikerBehavior Technician1215538293
  44. Brandon Riley, CRNACertified Registered Nurse Anesthetist1487216206
  45. Dannille Riley, OTR/LOccupational Therapist1275332488
  46. Erica Riley, CRNACertified Registered Nurse Anesthetist1659990067
  47. Margaret Riley, MDFamily Medicine Physician1699894014
  48. Syd Riley, LLMSWSocial Worker1295513604
  49. Melissa Rilko, LMSWSocial Worker1043839343
  50. Asmaa Rimawi, MDEmergency Medicine Physician1275100794

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.