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 45 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. Patrick Mansky, M.D.Medical Oncology Physician1013931526
  2. Robert Mansman, II, DDSPediatric Dentistry1124120191
  3. Pamela Manstof, NPFamily Nurse Practitioner1538872908
  4. Niclette MantezBehavior Technician1952179772
  5. Anny Mantilla, LMTMassage Therapist1821680356
  6. Politimi Mantzouranis, DDSGeneral Practice Dentistry1285773531
  7. Trevor Maples, DDSGeneral Practice Dentistry1003335506
  8. Romayne Mappes, LCPCProfessional Counselor1336636943
  9. Alana Marconi, DPMFoot & Ankle Surgery Podiatrist1609336197
  10. Linda MarcouxSchool Psychologist1659196723
  11. Gennaro Marenga, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1447729058
  12. Marybeth MareskiClinical Social Worker1508649096
  13. Maritza Marin, LGSWSocial Worker1760975494
  14. Richard MarinBehavior Technician1295575231
  15. Natalia Marina, M.D.Hematology & Oncology Physician1891134466
  16. Caprice Marjenin, D.D.S.General Practice Dentistry1003211814
  17. Kerri Markley, OTOccupational Therapist1932533999
  18. Dara Markowitz, MSW. LCSW-CClinical Social Worker1235947243
  19. Suzanne MarkowitzHealth Educator1518640713
  20. Kathryn Marks, LCPCProfessional Counselor1346352622
  21. Christine Marquardt, PMHNPPsychiatric/Mental Health Nurse Practitioner1669838751
  22. Morgan Marquart, MS, OTR/LOccupational Therapist1346863735
  23. Malorie Marti, LCPCMental Health Counselor1154915981
  24. Aurielle Martin, PA-CPhysician Assistant1114468550
  25. Lindsey Martin, LGPCProfessional Counselor1821958125
  26. Rhonda MartinOptometrist1346638228
  27. Albert Martins, M.D.,M.S.Neurology Physician1346203106
  28. Amanda Mason, LGPCProfessional Counselor1023741436
  29. Matthew MasonBehavior Technician1033854526
  30. Taylor Masotta, LGPCProfessional Counselor1447850201
  31. Sandra MasserPharmacist1265034540
  32. Emily Massi, RDN, LDNRegistered Dietitian1861331506
  33. Raya Massoud, M.D.Neurology Physician1831370063
  34. Teresa MastantuonoSpeech-Language Pathologist1912730201
  35. Christel Masters, CRNPPediatric Nurse Practitioner1326366428
  36. Baljinder MatharuPharmacist1801167812
  37. Amy Mathew, M.D.Pediatrics Physician1205083102
  38. Jared Matlick, DPTPhysical Therapist1457737363
  39. Cheryl Matthew, LCPCMental Health Counselor1245478536
  40. Carson MatthewsBehavior Technician1326908732
  41. Ingrid Matthews, LCADC (MARYLAND)Addiction (Substance Use Disorder) Counselor1194273177
  42. Meghan Matthews, LCSW-CSocial Worker1477023174
  43. Sean Mattingly, FNPFamily Nurse Practitioner1245879980
  44. Jessica Mauck, CRNPFamily Nurse Practitioner1265398804
  45. Jenna MauerBehavior Technician1376398545
  46. Colby Maun, LMTMassage Therapist1588584460
  47. Patricia Maundu, PHARM.D.Pharmacist1083992671
  48. Joyce May, LCSW-CClinical Social Worker1760603963
  49. Christianna Mayberry, MSN- DCNPAdult Health Nurse Practitioner1902290935
  50. Jocelyn Mayer Mayer, LMSWSocial Worker1336988328

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.