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 29 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. Rishi Gupta, MDAdult Reconstructive Orthopaedic Surgery Physician1881738334
  2. Justin Gutterman, LMSWMental Health Counselor1700563632
  3. Kathryn Guynn, OTOccupational Therapist1548963531
  4. David Gwinn, MDOrthopaedic Surgery Physician1396708731
  5. Richard Haber, M.D.Addiction Psychiatry Physician1720069156
  6. Dana Hackey, LCSW-CClinical Social Worker1548535073
  7. Jay Haddad, D.D.S.Oral and Maxillofacial Surgery (Dentist)1790760700
  8. Anita Hadden, M.A.Marriage & Family Therapist1124493754
  9. Erik Hadden, M.A.Professional Counselor1548643505
  10. Sabah Hadi, MDChild & Adolescent Psychiatry Physician1396818803
  11. Daniel Haffey, PSY.D.Clinical Psychologist1912940289
  12. Rachel Haffey, LPCProfessional Counselor1881211381
  13. Adrienne HaganFamily Nurse Practitioner1659158467
  14. Rebekah Hagan, LCSW-CClinical Social Worker1093112666
  15. Mary-Eileen Hahn, M.S.Professional Counselor1669780458
  16. Taylor Hahn, LGPCMental Health Counselor1629701800
  17. Jeffrey Haines, PAPhysician Assistant1790736908
  18. Lauren Haines, LCSWMental Health Counselor1497476675
  19. Jennifer Hair, M.S.Genetic Counselor (M.S.)1811281322
  20. Shelly Hairston-Jones, M.D.Anesthesiology Physician1518968080
  21. Majd Hakim, MDEndocrinology, Diabetes & Metabolism Physician1598871378
  22. Kathleen Halbert, MS, SLPSpeech-Language Pathologist1164991915
  23. Jeninne Hale, MSMental Health Counselor1548062722
  24. Amanda Hall, LPNLicensed Practical Nurse1407717325
  25. Brian Hall, DDSEndodontics1952770703
  26. Jodi Hall, NP-CFamily Nurse Practitioner1891264065
  27. Jonathan Hall, PA-CPhysician Assistant1124124771
  28. Karen Hall, MSW, LCSW-CClinical Social Worker1346239035
  29. Lauren Hall, LMSWSocial Worker1164257473
  30. William Hall, DDSDentist1558732693
  31. Jeannine Haller, RN, BSNOccupational Health Registered Nurse1285712232
  32. Morgan HallgrenBehavior Analyst1609459528
  33. Kristi Hallman, LCSW-CClinical Social Worker1427528207
  34. Ann Hallock, RPHPharmacist1760723555
  35. Lisa Halpern, MDPsychiatry Physician1598773228
  36. Ingrid HalvorsonAcute Care Nurse Practitioner1013336114
  37. Lloyd Halvorson, M.D.Pulmonary Disease Physician1033110028
  38. Catherine Hamilton, MA, CCC-SLPSpeech-Language Pathologist1669870911
  39. Kathryn HamiltonHome Health Aide1013509512
  40. Abbey Hammann, DPTPhysical Therapist1861174609
  41. Patrick Hammett, MSWClinical Social Worker1275562738
  42. Sadie HamrickBehavior Technician1144832791
  43. Sangwoon Han, M.D.Psychiatry Physician1477542181
  44. Christopher Hanes, PMHNPPsychiatric/Mental Health Nurse Practitioner1225805187
  45. Eric HangPharmacist1417559253
  46. Elizabeth Hanner, PT, DPTPhysical Therapist1366274581
  47. Rachel Hansberger, LCSW-CClinical Social Worker1912410424
  48. Hailey HansenBehavior Technician1114804168
  49. Jalynn HansonPharmacist1295404705
  50. Nicole Happel, LGSWSocial Worker1588197248

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.