NPPES file of Aug 9, 2026

Doctors and health care providers in Potomac, MD

497 individual NPPES records list a practice address in Potomac, 49th of 284 Maryland cities. The largest group is pharmacist: 40, 8% of the city's records, against 3% across Maryland. Page 8 of 10.

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

The 8 largest groups in Potomac

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

Potomac in Maryland

  • Rank in Maryland49th of 284 cities by records
  • Share of the state0.3% of Maryland's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.7% of all records

Compared with Maryland as a whole, Potomac has 3.9× the state's share of dentist records.

Providers in Potomac, alphabetically

  1. Charles Olsen, MDPsychiatry Physician1730304312
  2. Diann Onsted, LCSW-CPsychoanalyst1205041548
  3. Omosede Osagiede, DMDOrthodontics and Dentofacial Orthopedics Dentistry1962863902
  4. Otis Osei, DNP, CRNACertified Registered Nurse Anesthetist1164875746
  5. Tatiana Oussova, M.D.Internal Medicine Physician1053868091
  6. Inez Pandit, M.D.Family Medicine Physician1861629115
  7. Mary Pappas-Sandonas, MS, C-IAYT, CIYTRecreation Therapist1831983444
  8. Seung Park, L.ACAcupuncturist1972962223
  9. Jessica Pavlick, M.PSY.Student in an Organized Health Care Education/Training Program1851787519
  10. Maxine Penn, LCSWClinical Social Worker1073705323
  11. Cassandra Peters-Johnson, PHD, CCC-SLPSpeech-Language Pathologist1932598125
  12. Patricia Petrick, M.D.Endocrinology, Diabetes & Metabolism Physician1407859846
  13. Bruce Pfeffer, M.D.Psychiatry Physician1346394426
  14. Suprisha PhillipsBehavior Analyst1710582358
  15. Sarah Piro, LMSWSocial Worker1235720442
  16. Fridoun Pishdad, DMDDentist1134282668
  17. Franklin Polun, DPMFoot & Ankle Surgery Podiatrist1881697886
  18. Mihael Polymeropoulos, MDPsychiatry Physician1841509981
  19. Jena PowellSpeech-Language Pathologist1407410673
  20. Laura Primakoff, PH.D.Cognitive & Behavioral Psychologist1952523573
  21. Rachel Quinn, APRN, FNP-CFamily Nurse Practitioner1962945360
  22. Jailaxmi RajanClinical Social Worker1508369612
  23. Stephanie Rapp, LCSW-CClinical Social Worker1891588091
  24. Sara RasinesSchool Psychologist1902693849
  25. Danielle RaybuckClinical Social Worker1841736667
  26. Lothlorien RedmondSpecialist1386512077
  27. Kenneth Reimer, PSY.DClinical Child & Adolescent Psychologist1528753670
  28. Joel Reiskin, M.D.Internal Medicine Physician1720357536
  29. Maria Rendon, PH.D.Counseling Psychologist1023556065
  30. Sharim ReyesBehavior Technician1497675037
  31. Nadia RezaeianPharmacist1649664574
  32. Susan Rich, MD, MPHChild & Adolescent Psychiatry Physician1508013426
  33. Marni Riffkin, MSWClinical Social Worker1356931604
  34. Aaron Rilling, DPTPhysical Therapist1174132898
  35. Caroline Rivers, RNGeneral Practice Registered Nurse1932089141
  36. Vanessa Robin, MSSW, LMSWSocial Worker1457913600
  37. Amy Rogstad, MDEndocrinology, Diabetes & Metabolism Physician1972638187
  38. Robyn RosenbauerClinical Social Worker1487304937
  39. Hillary RosenbergGerontology Nurse Practitioner1740345362
  40. Michael Rosnick, M.D.Family Medicine Physician1174673610
  41. Holly Roth, DPTPhysical Therapist1801500491
  42. Yolanda Roth, M.D.Specialist1730398173
  43. Benjamin Rubin, MDOphthalmology Physician1922053602
  44. Trisha Rubin, L.C.S.W.Clinical Social Worker1336136639
  45. Natalya Sacks, LCPCMental Health Counselor1548125834
  46. Nicole SadorraLactation Consultant (Registered Nurse)1265267751
  47. Bita SafaiMental Health Counselor1891107074
  48. Lorraine Sakaris, LCPCProfessional Counselor1376741868
  49. Ahmed Saleem, MDInternal Medicine Physician1972675007
  50. Raquel Salimova, LMSWSocial Worker1366004590

The largest Maryland cities

  1. Baltimore35,183
  2. Rockville14,353
  3. Bethesda7,245
  4. Columbia6,690
  5. Silver Spring6,531

All of Maryland →

How to read this directory

Potomac, Maryland appears in the CMS National Plan and Provider Enumeration System with 497 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 Potomac - 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 Potomac 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 Potomac is weighted toward Pharmacist (40 clinicians, followed by Clinical Social Worker with 32 and Physical Therapist with 31). 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 Maryland's population, Potomac reports roughly 8 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 Maryland's most common specialties, Home Health Aide is the most prominent one with no provider currently listing a Potomac practice address, a coverage gap Potomac patients typically fill by traveling to a larger nearby hub.

For Potomac 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 Potomac, MD?

There are 497 registered healthcare providers in Potomac, MD, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Potomac?

The most common specialties in Potomac are Pharmacist, Clinical Social Worker, Physical Therapist, Dentist, Speech-Language Pathologist. Pharmacist has the most providers with 40.

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.