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 35 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. Umu JallohCase Manager/Care Coordinator1669233060
  2. Danielle James, MA, BCBABehavior Analyst1487284006
  3. Mary James, M.D.Psychiatry Physician1063415453
  4. Monica JamesPhysical Therapist1831595131
  5. Sarah Jamieson, PA-CMedical Physician Assistant1295813319
  6. Felicia JamisonBehavior Technician1487400230
  7. Alpa Jani, MDAllergy Physician1942299458
  8. Mihir Jani, M.D.Sports Medicine (Orthopaedic Surgery) Physician1144283359
  9. Lisa Jarboe, M.S. CCC/SLPSpeech-Language Pathologist1538639141
  10. Arielle JasperBehavior Technician1508664962
  11. Shyam Jayaraman, MDSurgery Physician1083027122
  12. Martine Jean-BaptistePsychiatric/Mental Health Nurse Practitioner1366153553
  13. Michelle Jefferson, LCSW-CClinical Social Worker1316370182
  14. Angel Jenkins, LMSWSocial Worker1265177752
  15. Anne Jenkins, LCSW-CClinical Social Worker1154541126
  16. Charles Jenkins, LCPCProfessional Counselor1164032942
  17. Rebecca JenkinsBehavior Technician1205780780
  18. Sarah JenningsNurse Practitioner1518325497
  19. Karen Jensen, MA, CAS, NCSPSchool Psychologist1205651270
  20. Keli Jensen, MS CCC-SLPSpeech-Language Pathologist1710456413
  21. Tracy JensenOccupational Therapist1053763078
  22. Matthew Jepson, M.D., M.S.Family Medicine Physician1174968077
  23. Michelle Jeram, PTPhysical Therapist1649547498
  24. Noelly JerezBehavior Technician1902606825
  25. Tyler JesseeBehavior Technician1811654247
  26. Alexa Jessop, LMSWSocial Worker1225848369
  27. Karla JimenezBehavior Technician1154275261
  28. Shahanawaz Jiwani, M.D., PHDMolecular Genetic Pathology (Medical Genetics) Physician1548503238
  29. Kendall Jo, OTR/LHand Occupational Therapist1750112025
  30. Joanna Jobin, M.S.Speech-Language Pathologist1730536467
  31. Mikschal Johanison, LACAcupuncturist1659910024
  32. Jennifer John, D.D.SDentist1639568843
  33. Andrew Johnson, M.D.Psychiatry Physician1972584233
  34. Catherine Johnson, OTR/LOccupational Therapist1184196198
  35. Christopher Johnson, PTAPhysical Therapy Assistant1134054398
  36. Crystal JohnsonBehavior Technician1861257719
  37. Elise Johnson, LCSW-CClinical Social Worker1417759929
  38. Elizabeth Johnson, C.R.N.P.Pediatric Nurse Practitioner1548417215
  39. Gail Johnson, MPTPhysical Therapist1154764033
  40. Greg JohnsonProfessional Counselor1154416485
  41. Heather Johnson, RDHDental Hygienist1669262721
  42. Jennifer Johnson, ADTAddiction (Substance Use Disorder) Counselor1790588283
  43. Jill Johnson, LMTMassage Therapist1821566803
  44. Julie JohnsonBehavior Technician1245112424
  45. Kelly JohnsonStudent in an Organized Health Care Education/Training Program1891253597
  46. Suzette JohnsonBehavior Technician1699528737
  47. Trevor Johnson, P.T.Physical Therapist1982711933
  48. William Johnson, M.D.,Nephrology Physician1134118326
  49. Jordanna Johnston, MDAnesthesiology Physician1235498924
  50. Michael Johnston, M.S.P.T.Physical Therapist1679691075

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.