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 14 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. William Clare, LCSW-CClinical Social Worker1720177769
  2. Evelyn Clarence, M.D.Pediatrics Physician1376520866
  3. Catharine Clark, MA, LDN, CNSNutritionist1023363546
  4. Christine ClarkCommunity Health Worker1164844239
  5. Jennifer Clark, LCSW-CClinical Social Worker1932723038
  6. Julie Clark, IBLCELactation Consultant (Non-RN)1689918450
  7. Kaitlin ClarkClinical Social Worker1538039995
  8. Liesel ClarkSocial Worker1699561522
  9. Megan Clark, RBTBehavior Technician1326622606
  10. Paige ClarkCommunity Health Worker1427429455
  11. Genevieve Clarke, RDN, LDN, CDCESRegistered Dietitian1720329543
  12. Brandi ClaytonClinical Social Worker1346885886
  13. Kristy Cleaver, M.P.T.Physical Therapist1144246018
  14. Connie Clegg, RN, CRNPNeonatal Nurse Practitioner1306856729
  15. Risa Clem, MS, CCC-SLPSpeech-Language Pathologist1386114353
  16. Matthew Clementson, DPTPhysical Therapist1235674482
  17. Hilary Cleveland, MS, LGPCCounselor1871075242
  18. Ernest Clevinger, M.D.Neurology Physician1235176769
  19. Casper Cline, M.D.Specialist1063493609
  20. Denise Clizbe, RN, CCRCResearch Study Specialist1073690020
  21. Lauren Clopper, MDPediatrics Physician1942879903
  22. Lori Close, LCSW-CClinical Social Worker1235535618
  23. Amy Clouser, P.T.Physical Therapist1235233800
  24. Meghan Clouspy, PT, DPTPhysical Therapist1063297869
  25. Ted Cmarada, LCSW-CClinical Social Worker1841349479
  26. Eliane CoatesMental Health Counselor1659049955
  27. Valerie CoblentzSocial Worker1235882119
  28. Amanda Cody, LCSW-CClinical Social Worker1245701887
  29. Jill Cody, M.A.Mental Health Counselor1073772786
  30. Maralee Coffey, LCPC, LCPAT, ATR-BCProfessional Counselor1295349876
  31. Elizabeth CofrancescoSports Medicine (Physical Medicine & Rehabilitation) Physician1134009251
  32. Marsha CohenSpeech-Language Pathologist1629548938
  33. Shelley Cohen, MS, RD, LDNRegistered Dietitian1982809364
  34. Stacey CohenBehavior Technician1104560192
  35. Christopher Cole, D.C.Chiropractor1780076117
  36. Karley Coleman, MOTR/LOccupational Therapist1013627595
  37. Shannon Coles, B.S.,RRT, AE-CEducational Registered Respiratory Therapist1952537003
  38. Vennessea ColesMental Health Counselor1720858186
  39. Hayley Coli, DPTPhysical Therapist1457728545
  40. Thomas Colligan, LCSW-CClinical Social Worker1316276900
  41. Emily CollinghamProfessional Counselor1962890962
  42. Cori CollinsBehavior Technician1790290013
  43. Lisa Collins, CRNPAdult Health Nurse Practitioner1619759503
  44. Rebecca CollinsCase Management Registered Nurse1356982888
  45. Susan Collins, SPEECH PATHOLOGISTSpeech-Language Pathologist1154581312
  46. Tara Collins, OTRLOccupational Therapist1639207368
  47. William Colliver, D.D.S.Dentist1467464024
  48. Mary Colson, PHARMDPharmacist1972377547
  49. Michael Comas, LCSW-CClinical Social Worker1417511684
  50. Stephanie Comer-Concordia, CRNPNurse Practitioner1508847286

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.