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 109 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. Barbara Shostak, PH.D.Clinical Psychologist1053551788
  2. Jennifer ShowalterSocial Worker1508257437
  3. Aradhika ShresthaStudent in an Organized Health Care Education/Training Program1477208379
  4. Riya ShresthaBehavior Technician1902781552
  5. Suchana ShresthaProfessional Counselor1053070862
  6. Mary Shuffleton, LPCProfessional Counselor1568617652
  7. Marla Shuman, M.D.Pulmonary Disease Physician1083616312
  8. Khalid Shumburo, M.D.Nephrology Physician1952379737
  9. Randy Shusman, LCSWSocial Worker1811235047
  10. Amelia ShusterAudiologist1902281157
  11. Hassan Sibay, M.D.Pain Medicine (Anesthesiology) Physician1790700672
  12. David Sibley, D.D.S.General Practice Dentistry1003039140
  13. Gregory Sibley, M.D.Radiation Oncology Physician1043211360
  14. Lily Sicard, M.D.Diagnostic Radiology Physician1063487585
  15. Hannah Sichel, MSSpeech-Language Pathologist1013565019
  16. Humaira Siddiqi, M.D.Psychiatry Physician1245536283
  17. Ali Siddiqui, MDGastroenterology Physician1265478275
  18. Olivia SiddleSpeech-Language Pathologist1366223125
  19. Joseph Sierzega, MS, VATL, ATC, CSCSAthletic Trainer1972737880
  20. Ann Sigafoos, PH.D.Clinical Psychologist1265500722
  21. Ramyar Sigarchy, MD, MPHStudent in an Organized Health Care Education/Training Program1235879065
  22. Susan Sigler, CCC-SLPSpeech-Language Pathologist1760401624
  23. Leslie SigmanOccupational Therapist1457772485
  24. Linda Sigmund, M.D.Neurology Physician1639148174
  25. Natalie Sikka, MDPediatric Gastroenterology Physician1851322424
  26. Vaishali Sikotra, PTPhysical Therapist1679560981
  27. Ariel Silber, PHDClinical Psychologist1295380848
  28. Natalie Silber, D.P.T.Physical Therapist1982969192
  29. Alan Silk, M.D.Neonatal-Perinatal Medicine Physician1902846660
  30. Diane SillSpecialist1992160865
  31. Kimberly Silloway, D.D.S.Oral and Maxillofacial Surgery (Dentist)1790795466
  32. Patricia Silva, PHDClinical Psychologist1578603221
  33. Jill Silver De Castro, CFNPFamily Nurse Practitioner1659404440
  34. Christopher Silveri, MDOrthopaedic Surgery Physician1982693032
  35. Robert Silverman, M.D.Pediatric Dermatology Physician1881694651
  36. Andrew Silvester, PHARM DPharmacist1114209277
  37. Yvonne Sim, MDDiagnostic Radiology Physician1578581153
  38. Milan Simanek, D.D.SGeneral Practice Dentistry1841586617
  39. Brianna SimmonsBehavior Technician1336734342
  40. Jasmine SimmonsSocial Worker1760118707
  41. Jaylen SimmonsAthletic Trainer1770272841
  42. Vivica SimmonsMental Health Counselor1326737065
  43. Erin Simon, AG-ACNPAcute Care Nurse Practitioner1316958176
  44. Katya Simon, CNMAdvanced Practice Midwife1235641325
  45. Gina Simonetti, DCChiropractor1154316511
  46. Mohamed Simpara, MDInternal Medicine Physician1518617034
  47. Jessica Simpson, IBCLCLactation Consultant (Non-RN)1316522428
  48. Justine SimpsonClinical Psychologist1609201037
  49. Matthew Sims, MSWMental Health Counselor1679033492
  50. James Simsarian, M.D.Neurology Physician1235108986

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.