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 302 of 313.
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
- Erian WilliamsBehavior Technician1427693555
- Erica Williams, PAPhysician Assistant1538561469
- Faith WilliamsBehavior Technician1962196246
- Garrett Williams, NPNurse Practitioner1104550730
- Geoffrey Williams, MD, PHDInternal Medicine Physician1386673622
- Idrees WilliamsBehavior Technician1528615259
- Jade WilliamsBehavior Technician1750108627
- Jaionah WilliamsCase Manager/Care Coordinator1508561895
- Jonathan WilliamsStudent in an Organized Health Care Education/Training Program1467075580
- Joy Williams, MDFamily Medicine Physician1770672636
- Julie Williams, NPGerontology Nurse Practitioner1487051173
- Jyness Williams, PHARMDPharmacist1790394955
- Kara Williams, LMSWClinical Social Worker1316608151
- Kathryn Williams, MDEmergency Medicine Physician1124046479
- Katy Williams, CRNACertified Registered Nurse Anesthetist1205180510
- Keyonna WilliamsSurgical Critical Care Physician1518491323
- Kimberly WilliamsRegistered Nurse1285588194
- Lisa Williams, RNRegistered Nurse1275258816
- Michele WilliamsHealth Educator1225784010
- Naomi Williams, PAPhysician Assistant1124106661
- Pamela Williams, MDOphthalmology Physician1639191356
- Rachel WilliamsNurse's Aide1992686737
- Reg Williams, NPNurse Practitioner1083985352
- Romona Williams, EDDProfessional Counselor1275214488
- Roslyn Williams, NPNurse Practitioner1033526363
- Shalynn Williams, RNAddiction (Substance Use Disorder) Registered Nurse1386526499
- Shelby WilliamsBehavior Technician1114766268
- Suzan Williams, RNRegistered Nurse1548756067
- Tiffany WilliamsOccupational Therapist1588167761
- Timothy Williams, MDAnesthesiology Physician1275027419
- Tokoya Williams, MDStudent in an Organized Health Care Education/Training Program1164835492
- Yiliyah WilliamsBehavior Technician1033920244
- Megan Williams-Morad, P.A.-CPhysician Assistant1417283169
- Craig Williamson, MDNeurocritical Care Physician1114240173
- Jean Williamson, CRNACertified Registered Nurse Anesthetist1720243397
- Jennifer Williamson, ATCAthletic Trainer1841792488
- Sandra Williamson, LPNLicensed Practical Nurse1578405643
- Tara Williamson, NPNurse Practitioner1932439981
- Stacey Williamson-Carotta, LMSWClinical Social Worker1770625436
- Hunter WillisBehavior Technician1932743481
- Nancy Willis, LMSWClinical Social Worker1528374907
- Elizabeth WilloughbyStudent in an Organized Health Care Education/Training Program1447100649
- Kimberly WilloughbyNurse Practitioner1952993883
- Shamim Willoughby, CRNACertified Registered Nurse Anesthetist1891099982
- Rachel Wills, OTRLOccupational Therapist1093218190
- Matthew Willsey, MDNeurological Surgery Physician1649660234
- Karla Willson, NPNurse Practitioner1033531066
- Zachary Wilseck, M.D.Vascular & Interventional Radiology Physician1023499878
- Alan Wilson, PA-CPhysician Assistant1063645836
- Allecia Wilson, M.D.Forensic Pathology Physician1962628537
The largest Michigan cities
- Farmington Hills36,305
- Detroit19,832
- Grand Rapids18,005
- Novi7,641
- Kalamazoo6,553
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.