Doctors and health care providers in Troy, MI
3,809 individual NPPES records list a practice address in Troy, 14th of 515 Michigan cities. The largest group is behavior technician: 462, 12% of the city's records, against 22% across Michigan. Page 50 of 77.
The 8 largest groups in Troy
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Troy in Michigan
- Rank in Michigan14th of 515 cities by records
- Share of the state1.3% of Michigan's records
- Specialties present25 or more taxonomy codes
- Top three groups24.5% of all records
Compared with Michigan as a whole, Troy has 2.5× the state's share of physician assistant records and 0.55× its share of behavior technician records.
Providers in Troy, alphabetically
- Marcy NgHome Health Aide1821858671
- Leynna Nguyen, RBT 16-24847Behavior Technician1205327509
- Tony Nguyen, M.D.Internal Medicine Physician1396741567
- Catherine Nichols, NPNurse Practitioner1770565632
- Matthew Nickel, LLPPsychologist1679357032
- Paul Nickola, ODOptometrist1689880395
- Alicya NiecalekMassage Therapist1770075707
- Monika NiemasikPsychologist1598318636
- Tracy NiemiLicensed Practical Nurse1497323513
- Dana Nierman, PTAPhysical Therapy Assistant1023964251
- Corey NierzwickBehavior Technician1063210755
- Kanon NishijimaBehavior Technician1831946599
- Deanna NobouphasavanhSocial Worker1861101552
- Laura Nolan, PAPhysician Assistant1376738864
- Renee Noomie, DCChiropractor1871515833
- Nayantara NooraniSpeech-Language Pathologist1316742257
- Eric Nordquist, MA, LPC, NCCProfessional Counselor1669565727
- Ashley Nordstrom, M.S., PA-CPhysician Assistant1861279754
- Adam Norman, PTAPhysical Therapy Assistant1891295648
- Matthew NormanCertified Registered Nurse Anesthetist1043198732
- Kurt NorrisBehavior Technician1578276226
- Shailyn NorriseBehavior Technician1740153683
- Joelle NorthCase Manager/Care Coordinator1881559870
- Kathleen Norton, MDInternal Medicine Physician1215915087
- Earlexia Norwood, M.D.Family Medicine Physician1225102734
- Renee NoteboomBehavior Technician1063112803
- Jennifer NovakMassage Therapist1417273566
- Kelsey NovakSocial Worker1295499804
- Patricia NovakAnatomic Pathology & Clinical Pathology Physician1750342945
- Emily Nowicki, M.D.Pediatrics Physician1699201251
- Gregory Nowinski, MDOrthopaedic Surgery Physician1205826427
- James Nugent, PTPhysical Therapist1225087927
- Jennifer Nugent, PTPhysical Therapist1215988662
- Kevin Nurmi, MDInternal Medicine Physician1942261938
- Michael NuttPhysician Assistant1538137138
- Ifechide Nwabueze, DMDPediatric Dentistry1043591472
- Danielle NykanenBehavior Technician1760258461
- Amy O'BrienBehavior Analyst1184034233
- Daniel O'Brien, D.D.S.General Practice Dentistry1154300804
- Knute O'Brien, PAPhysician Assistant1407537517
- John O'ConnorAcute Care Nurse Practitioner1447832316
- Devon O'Connor-Kutz, PA-CPhysician Assistant1033150727
- Amanda O'Dell, NPNurse Practitioner1740637602
- Erin O'Dowd, CPNPPediatric Adolescent Medicine Physician1922576214
- Cynthia O'Flynn, ME.D, ATR-BC, CTSArt Therapist1841365350
- Neala O'Hara, TLLPCounseling Psychologist1033631122
- Daniel O'Neil, M.A.Athletic Trainer1073636924
- Ann O'Neill, LPCProfessional Counselor1891340626
- Kristen O'Neill, OTRL, RYTOccupational Therapist1881195758
- Ellen O'Niel, DDSDentist1801180336
The largest Michigan cities
- Farmington Hills36,305
- Detroit19,832
- Grand Rapids18,005
- Ann Arbor15,616
- Novi7,641
How to read this directory
Troy, Michigan appears in the CMS National Plan and Provider Enumeration System with 3,809 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 Troy - 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 Troy 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 Troy is weighted toward Behavior Technician (462 clinicians, followed by Physician Assistant with 237 and Physical Therapist with 235). 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, Troy reports roughly 37.9 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Troy practice address, a coverage gap Troy patients typically fill by traveling to a larger nearby hub.
For Troy 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 Troy, MI?
There are 3,809 registered healthcare providers in Troy, MI, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Troy?
The most common specialties in Troy are Behavior Technician, Physician Assistant, Physical Therapist, Clinical Social Worker, Family Nurse Practitioner. Behavior Technician has the most providers with 462.
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.