NPPES file of Aug 9, 2026

Doctors and health care providers in Frederick, MD

3,981 individual NPPES records list a practice address in Frederick, 6th of 284 Maryland cities. The largest group is behavior technician: 427, 11% of the city's records, against 16% across Maryland. Page 54 of 80.

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

The 8 largest groups in Frederick

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

Frederick in Maryland

  • Rank in Maryland6th of 284 cities by records
  • Share of the state2.5% of Maryland's records
  • Specialties present25 or more taxonomy codes
  • Top three groups25.7% of all records

Compared with Maryland as a whole, Frederick has 2.3× the state's share of massage therapist records and 0.60× its share of internal medicine physician records.

Providers in Frederick, alphabetically

  1. Shana OshiroSpecialist1598134066
  2. Naomi OshunwusiBehavior Technician1144924036
  3. Oluwakemi Osidele, DNP, FNP-C, CRNPPsychiatric/Mental Health Nurse Practitioner1649649468
  4. Said Osman, MDOrthopaedic Surgery of the Spine Physician1023071206
  5. Antonio Ostrea, PTPhysical Therapist1881497196
  6. Andrea Oudshoorn, PTAPhysical Therapy Assistant1114754827
  7. Chloe Ouimette, DPTPhysical Therapist1295301034
  8. Lisa OwenPharmacist1174845879
  9. Beth Owens, DIPL. AC., L. AC.Acupuncturist1588960629
  10. Kristiyana OwensBehavior Technician1619792520
  11. Margaret Owens, PHDPsychologist1174184659
  12. Mary Owens, MSW,ACSW,LCSW-CClinical Social Worker1265530935
  13. Stephanie OwlfeatherAcupuncturist1285183293
  14. Jeanette Owusu, M.D.Endocrinology, Diabetes & Metabolism Physician1467866913
  15. Leah OxendineFamily Nurse Practitioner1447675756
  16. Radha Padhy, M.D.Obstetrics & Gynecology Physician1770997041
  17. Marjorie Palmer, CRNPFamily Nurse Practitioner1528741915
  18. Alyshia PalomoBehavior Technician1083592323
  19. Pratima Pandey, MDInternal Medicine Physician1760559348
  20. Bobby PandiarajanPharmacist1215337308
  21. Kaley Paniwozik, MA CCC-SLPSpeech-Language Pathologist1104426493
  22. Denise PankowSchool Psychologist1447075411
  23. Jennifer Pantoja, NPFamily Nurse Practitioner1285093047
  24. Ellen PapePhysical Therapist1235159153
  25. Zinon Pappas, M.D.Pain Medicine Physician1689645855
  26. Ngun Par ThangAcute Care Nurse Practitioner1467268912
  27. Thomas Parambil, MDInternal Medicine Physician1336342252
  28. Augusto Paredes Ubillus, FNP-CFamily Nurse Practitioner1285288282
  29. Erica ParekhSchool Psychologist1700695855
  30. Lea ParisAddiction (Substance Use Disorder) Counselor1114667524
  31. Aimee Park, M.D.Cardiovascular Disease Physician1265435978
  32. In Park, M.D.Child & Adolescent Psychiatry Physician1881683571
  33. Sarah Park, CRNP FAMILYFamily Nurse Practitioner1902252620
  34. Cia Parker, PSY.D.Psychologist1124276852
  35. Jonathan ParkerPhysician Assistant1013406966
  36. Ryan ParkerBehavior Technician1528999067
  37. Siehda Parker, LCSW-CClinical Social Worker1013504430
  38. Emma Parkinson, MSW, LGSW, LMSWClinical Social Worker1821776568
  39. Sandra Parkinson, MDFamily Medicine Physician1043282189
  40. Cheryl Parks, CRNAClinical Nurse Specialist1902880222
  41. Alissa Parmelee, PA-CPhysician Assistant1376976159
  42. Kayla Parmelee, MS., CCC-SLPSpeech-Language Pathologist1255991857
  43. Janet Parnes, M.D.Gynecology Physician1427083765
  44. Keri ParsonBehavior Technician1982121174
  45. Colleen ParsonsClinical Social Worker1164283479
  46. Heather ParsonsPhysical Therapy Assistant1215610118
  47. Jesse Parsons, DPTPhysical Therapist1770171019
  48. Michael Parsons, D.D.S.Endodontics1215006507
  49. Spencer ParsonsPhysical Therapist1922947704
  50. Stephanie Parsons, MSPTPhysical Therapist1528636586

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

Frederick, Maryland appears in the CMS National Plan and Provider Enumeration System with 3,981 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 Frederick - 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 Frederick 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 Frederick is weighted toward Behavior Technician (427 clinicians, followed by Clinical Social Worker with 348 and Physical Therapist with 249). 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, Frederick reports roughly 64.4 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 Frederick practice address, a coverage gap Frederick patients typically fill by traveling to a larger nearby hub.

For Frederick 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 Frederick, MD?

There are 3,981 registered healthcare providers in Frederick, MD, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Frederick?

The most common specialties in Frederick are Behavior Technician, Clinical Social Worker, Physical Therapist, Professional Counselor, Mental Health Counselor. Behavior Technician has the most providers with 427.

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.