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 42 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. Doreen Cadreau-GiffordRegistered Nurse1528784816
  2. Leigh Cagino, M.D.Pulmonary Disease Physician1629497243
  3. Timothy Cahill, M.D.Anesthesiology Physician1215977400
  4. Lizbeth Cahuayme-Zuniga, M.D.Infectious Disease Physician1588875660
  5. Yiding Cai, MDInternal Medicine Physician1831536895
  6. Barbara Cain, ACSWClinical Social Worker1255534384
  7. Emily CainBehavior Technician1891511093
  8. Julie Cain, NPNurse Practitioner1649771668
  9. Laura CaincrossNurse's Aide1174405138
  10. Michelle Caird, MDOrthopaedic Surgery Physician1639279474
  11. Javier Calatrava, DDS, MSCPeriodontics1316765027
  12. Howard Calder, PHD.Audiologist1073536298
  13. Oshadi Caldera, DOStudent in an Organized Health Care Education/Training Program1639001803
  14. Marcus Calderon, MDInternal Medicine Physician1639600885
  15. Clare CaldwellBehavior Technician1134053945
  16. Laura Caldwell, PA-CPhysician Assistant1174216006
  17. Martina Caldwell, MDEmergency Medicine Physician1659690758
  18. Matthew Caldwell, MDAnesthesiology Physician1962420380
  19. Chelsey Caley, MSWClinical Social Worker1730503814
  20. Allyson Calhoun, AT, ATCAthletic Trainer1922494400
  21. Carmen Calhoun, MD, MSStudent in an Organized Health Care Education/Training Program1669318127
  22. Colonya Calhoun, DDS, PHDOral and Maxillofacial Surgery (Dentist)1154453124
  23. Courtney Calkins, PAPhysician Assistant1164977781
  24. Korin Calkins, PHARM.D., R.PH.Pharmacist1306999834
  25. Alison CallaghanBehavior Technician1407794167
  26. Brian Callaghan, MDNeurology Physician1619032901
  27. Kara CallaghanMidwife1114767092
  28. Megan Callaghan-Vanderwall, MDStudent in an Organized Health Care Education/Training Program1235926106
  29. Sean CallahanPulmonary Disease Physician1336402940
  30. Jeffrey Callard, PAPhysician Assistant1053347021
  31. Elizabeth Callaway, M.S., CCCSpeech-Language Pathologist1316025752
  32. Lisa Callihan De Vries, LCCCounselor1154281335
  33. Hannah Callison, LLPCProfessional Counselor1821733932
  34. Stephanie Callison, M.D.Anesthesiology Physician1316189228
  35. Louise Callow, NPPediatric Nurse Practitioner1922332915
  36. Charlotte Cally, LMSWClinical Social Worker1750910907
  37. Nadia CalvertBehavior Technician1720855695
  38. Rebecca Calvert, CPNPNurse Practitioner1649535857
  39. Siera CalzadoBehavior Technician1154268266
  40. Georgina Camacho GonzalezBehavior Technician1609571090
  41. Shasha Camaj, PH.D.Clinical Psychologist1457546806
  42. Moustapha CamaraBehavior Technician1518824705
  43. Sandra Camelo-Piragua, MDNeuropathology Physician1528273844
  44. Adrianne Camero-Sulak, PSY.D.Clinical Psychologist1639259021
  45. Nicholas Cameron, NPNurse Practitioner1316324049
  46. Oliver Cameron, MDPsychiatry Physician1124190426
  47. Renee Camilleri, RRTRegistered Respiratory Therapist1487371027
  48. Erica Campagnaro, MDHematology (Internal Medicine) Physician1891854683
  49. Alexis Campbell, OTR/LOccupational Therapist1043803166
  50. Andrew Campbell, MDPediatric Hematology & Oncology Physician1770593303

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.