NPPES file of Aug 9, 2026

Doctors and health care providers in Fairfax, VA

6,584 individual NPPES records list a practice address in Fairfax, 4th of 351 Virginia cities. The largest group is clinical social worker: 421, 6% of the city's records, against 5% across Virginia. Page 80 of 132.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Fairfax

  1. Clinical Social Worker421
  2. Behavior Technician401
  3. Speech-Language Pathologist361
  4. Professional Counselor276
  5. Physical Therapist262
  6. Family Nurse Practitioner238
  7. School Psychologist230
  8. Pharmacist208

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Fairfax in Virginia

  • Rank in Virginia4th of 351 cities by records
  • Share of the state4.4% of Virginia's records
  • Specialties present25 or more taxonomy codes
  • Top three groups18% of all records
  • Clinical Social Worker rank3rd of the 10 Virginia cities with the most

Compared with Virginia as a whole, Fairfax has 7.6× the state's share of school social worker records and 0.40× its share of student in an organized health care education/training program records.

Providers in Fairfax, alphabetically

  1. Robin Merlino, M.D.Internal Medicine Physician1194794313
  2. Joseph Mernagh, M.S.Mental Health Counselor1992421069
  3. Karla Merola, LPTAPhysical Therapy Assistant1790289239
  4. Tammy Merriman, OTLOccupational Therapist1679932883
  5. Susan Mersch, CNMAdvanced Practice Midwife1174508287
  6. Ante MesinBehavior Technician1134576234
  7. Carla Messenger, PH. D.Clinical Psychologist1225158785
  8. Kristen Messenger, LPCProfessional Counselor1841635653
  9. David Metzdorf, DDSDentist1174530851
  10. Shirley Metzger, LCSWClinical Social Worker1710342571
  11. Natasha MetznerAssistant Behavior Analyst1578129417
  12. Rachel Meyer, LCSWSchool Social Worker1265037832
  13. Georgia Meyers, LPCMental Health Counselor1154069730
  14. Steven Meyers, MDDiagnostic Radiology Physician1487672077
  15. Osita Mgbendi, DNP- PMHNPPsychiatric/Mental Health Nurse Practitioner1639855299
  16. Nancy Michael, SLPSpeech-Language Pathologist1649262247
  17. Dayna MichaelsonSpeech-Language Pathologist1770083396
  18. Marissa Michalski, M.S., CCC-SLPSpeech-Language Pathologist1861057929
  19. Ernest Michel, M.D.Anesthesiology Physician1356353411
  20. Nicole MichonskiBehavior Technician1174014997
  21. Mariana Middelhof, M.DPediatric Gastroenterology Physician1710293337
  22. Laura Middleton, CRNPAdult Health Nurse Practitioner1992061642
  23. Madeleine Mihalich, LCSWClinical Social Worker1356947113
  24. Kavian Milani, M.D.Family Medicine Physician1104919570
  25. Matthew Milano, PH.D.Clinical Psychologist1982063830
  26. Emily MilasSchool Psychologist1396328472
  27. Maria Mileo-Silva, MA, LPCProfessional Counselor1982821104
  28. Mamta MilesCertified Registered Nurse Anesthetist1396903878
  29. Ann Miller, LPC, NCCProfessional Counselor1629689401
  30. Beth Miller, OTOccupational Therapist1477552420
  31. Brice Miller, DC, PAKChiropractor1417214800
  32. Carol Miller, FNP-BCFamily Nurse Practitioner1902272479
  33. Carol Miller, RPHPharmacist1851762744
  34. Caroline MillerAudiologist1164109161
  35. Claire MillerSpeech-Language Pathologist1689357881
  36. Glen Miller, DDSGeneral Practice Dentistry1891782892
  37. Heather MillerSchool Psychologist1003622614
  38. Jeffrey Miller, DDSGeneral Practice Dentistry1508999244
  39. John Miller, M.D.Hematology & Oncology Physician1528036977
  40. Kathryn Miller, M.D.Gynecologic Oncology Physician1538547500
  41. Laurie Miller, MSWClinical Social Worker1497162093
  42. Lindsay MillerStudent in an Organized Health Care Education/Training Program1609723089
  43. Mark Miller, DCChiropractor1811192313
  44. Melissa Miller, OTR/LOccupational Therapist1982465662
  45. Nathan Miller, M.D.Family Medicine Physician1720242662
  46. Olivia Miller, PA-CPhysician Assistant1992515415
  47. Tami Miller, CRNACertified Registered Nurse Anesthetist1689675696
  48. Claire Milliken, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1396261368
  49. Alissa Mills, PA-CPhysician Assistant1003867003
  50. Emily Mills, LBSWStudent in an Organized Health Care Education/Training Program1114326840

The largest Virginia cities

  1. Richmond14,083
  2. Virginia Beach9,147
  3. Charlottesville7,000
  4. Norfolk5,993
  5. Alexandria5,424

All of Virginia →

How to read this directory

Fairfax, Virginia appears in the CMS National Plan and Provider Enumeration System with 6,584 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 Fairfax - 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 Fairfax 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 Fairfax is weighted toward Clinical Social Worker (421 clinicians, followed by Behavior Technician with 401 and Speech-Language Pathologist with 361). 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 Virginia's population, Fairfax reports roughly 76.2 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.

For Fairfax 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 Fairfax, VA?

There are 6,584 registered healthcare providers in Fairfax, VA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Fairfax?

The most common specialties in Fairfax are Clinical Social Worker, Behavior Technician, Speech-Language Pathologist, Professional Counselor, Physical Therapist. Clinical Social Worker has the most providers with 421.

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.