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 75 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. Darlene Mansoor, M.D.Allergy & Immunology Physician1013131010
  2. Renu Mansukhani, M.D.Endocrinology, Diabetes & Metabolism Physician1801042791
  3. Diane Mantos, RN, BSN, CCMCase Management Registered Nurse1811656911
  4. Alison Mantua, PA-CMedical Physician Assistant1184771677
  5. Aileen Marie Mapalo, OTOccupational Therapist1164677795
  6. Ronica Marable, PHDCounselor1245115856
  7. Alhaji MarahBehavior Technician1841798063
  8. Khadijah Maraheel, PHARMACIST, PHARMDPharmacist1689482283
  9. Leslie Maralit, DPTPhysical Therapist1225707425
  10. Leah MarateaBehavior Technician1235885328
  11. Donald Marazzo, MDReproductive Endocrinology Physician1508957879
  12. Roger Marcellin, D.D.S.General Practice Dentistry1437341641
  13. Mary MarchettiOccupational Therapist1790791200
  14. Christina Marcone, LCSWClinical Social Worker1316774508
  15. Denise MarconeSchool Social Worker1487027850
  16. Jared Marcotte, LHAS-VAHearing Instrument Specialist1073396099
  17. Sarah MardAthletic Trainer1316580731
  18. Rodolfo Marenco, LPCProfessional Counselor1407126808
  19. Sarah Margerison, DPTPhysical Therapist1396137956
  20. Christian MargitaBehavior Technician1497632004
  21. Renee MargolisSpeech-Language Pathologist1437872108
  22. Ludovic MarieBehavior Technician1326503210
  23. Francia Marin Gutierrez, MSWClinical Social Worker1538020524
  24. Joanna Marino, PH.D.Clinical Psychologist1144596958
  25. Emily Marion, LICSW, LMSWClinical Social Worker1649730847
  26. Anne Markotic, OTOccupational Therapist1154484038
  27. Allyson Markussen, LPCMental Health Counselor1508511056
  28. Andrea Markway, AUD, CCC-AAudiologist1093096976
  29. Leslie Maron, LPC, LCPCProfessional Counselor1255883732
  30. Nicholas Marotta, O.D.Optometrist1265569099
  31. Sandra Marotta, ODOptometrist1396841979
  32. Kathryn Marqueen, MDRadiation Oncology Physician1427678945
  33. Jeanne Marquis, PHDClinical Psychologist1063440931
  34. Maria MarrisSchool Social Worker1992293922
  35. Christopher Marrow, PTPhysical Therapist1609831510
  36. Amy MarshallSchool Social Worker1790399632
  37. Kristen Marshall, DVMVeterinarian1073959623
  38. Morgan MartenyBehavior Analyst1700364262
  39. Christian MartinSpeech-Language Pathologist1114428224
  40. Diane Martin, RNUrology Registered Nurse1003599200
  41. Kasey MartinBehavior Technician1982166336
  42. Lynn Martin, MPTPhysical Therapist1871505693
  43. Manolya Martin, PT, DPTPhysical Therapist1134841430
  44. Phyllis Martin, LPCProfessional Counselor1215360532
  45. Sophia Martin, NCSPSchool Psychologist1407690738
  46. Stephanie Martin, LICSW, LCSWClinical Social Worker1932798261
  47. Tiffany Martin, LCSWClinical Social Worker1073119954
  48. Charles Martinez, CRNPFamily Nurse Practitioner1801223102
  49. Giovana MartinezBehavior Technician1144991035
  50. Johanna Martinez, LCSWClinical Social Worker1689238891

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.