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 239 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. Mark Rudolf, MD, PHDStudent in an Organized Health Care Education/Training Program1528705852
  2. Jean Rudolph, PHARMDPharmacist1023447075
  3. Natalie Rudoni, DDSDentist1518251743
  4. Michael Rudy, MDInternal Medicine Physician1952694887
  5. Shannon Rudy, MDFacial Plastic Surgery Physician1598175572
  6. Antonio Ruellas, DDSOrthodontics and Dentofacial Orthopedics Dentistry1114434768
  7. Diane RufeOrthopedic Physical Therapist1285136036
  8. Allison Ruff, MDInternal Medicine Physician1437448057
  9. Amanda Ruffin, PAPhysician Assistant1679137046
  10. Austin Ruffin, PA-CPhysician Assistant1861918195
  11. Silmore Ruffin, RNRegistered Nurse1063534915
  12. Lisa Ruggeberg, MSW, CAADCSocial Worker1730499849
  13. Miranda Ruhlen, NPNurse Practitioner1881362168
  14. Jessica RuikkaPediatric Nephrology Physician1952920043
  15. Melissa RuizBehavior Technician1487128625
  16. Natalie RuizBehavior Technician1346011467
  17. Shawn Ruiz, CNMAdvanced Practice Midwife1437927423
  18. Mary Rumman, MSWClinical Social Worker1609918960
  19. Lindsay Rummel, MSWClinical Social Worker1316701519
  20. Matthew Rumschlag, MDNeurology Physician1477180271
  21. Hannah RumseyRegistered Nurse1518797141
  22. Mariama Runcie, MDEmergency Medicine Physician1801357371
  23. Carly RungeSpecialist1295618841
  24. John Runge, MDDermatology Physician1588395925
  25. Marschall Runge, MDCardiovascular Disease Physician1841351970
  26. Mason RungeStudent in an Organized Health Care Education/Training Program1952926685
  27. Susan Runge, MDDermatology Physician1023128758
  28. Voravut Rungpradubvong, M.D.Legal Medicine1861808594
  29. Nawaz Rupani, M.D.Pulmonary Disease Physician1710332366
  30. Phillip Rupp, NPNurse Practitioner1851477806
  31. Nina Rush, MSWSocial Worker1437192804
  32. Jornaysia Russ, RNRegistered Nurse1164260188
  33. Kimberly RussBehavior Technician1538759469
  34. Andrew Russell, MDGeriatric Medicine (Internal Medicine) Physician1700380227
  35. Colin Russell, MDObstetrics & Gynecology Physician1407471436
  36. Dale Russell, PA-CPhysician Assistant1184890519
  37. Donna Russell, LMSW, DCSW, ACSW,CBClinical Social Worker1043638703
  38. Gabrielle Russell, NPNurse Practitioner1033988464
  39. Judith Russell, PSYCHOLOGISTCognitive & Behavioral Psychologist1720276348
  40. Kathryn Russell, NPNurse Practitioner1568940377
  41. Mark Russell, MDPediatric Cardiology Physician1083620256
  42. Montana RussellCase Manager/Care Coordinator1770308017
  43. Scott Russell, MDAnesthesiology Physician1417078304
  44. Stacy Russell, NPNurse Practitioner1760802433
  45. Sarah RussmanCommunity Health Worker1487408332
  46. Stefanie Russman BlockCognitive & Behavioral Psychologist1952047409
  47. Leah Russo, DNP, RN, WHNP-BCWomen's Health Nurse Practitioner1891204210
  48. Barbara Rust, PH.D.Clinical Psychologist1275758229
  49. James Rust, MSWClinical Social Worker1316267917
  50. Catherine RutanSpeech-Language Pathologist1568876613

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.