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 31 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. Deborah Hedges, LCSW-CClinical Social Worker1174269419
  2. Carolyn Hedin, CRNPAdult Health Nurse Practitioner1487657797
  3. Alyssa HeflinBehavior Technician1871137505
  4. Amr Hegazi, MDHematology & Oncology Physician1366443152
  5. Teri Heger, LCSW-CClinical Social Worker1528140548
  6. Lydia Heimlich, LCSW-CClinical Social Worker1174392393
  7. McKaila HeimsBehavior Technician1881104735
  8. Dale Heitzig, M.D.Family Medicine Physician1548244056
  9. Christine Helinski, MDInternal Medicine Physician1821096918
  10. Erica Henderson, LPNLicensed Practical Nurse1548489685
  11. Nima Hendi, M.D.Pediatric Adolescent Medicine Physician1932107836
  12. Allison HenriquezBehavior Technician1346953684
  13. Brittany Henry, PA-CMedical Physician Assistant1912332123
  14. John Henry, M.D.Specialist1013982784
  15. Kenneth Henry, PH.D.Audiologist1689754012
  16. Lee Henry, LCSW-CClinical Social Worker1558643783
  17. Scott Henry, DPMPodiatrist1255324539
  18. Sydney HenryBehavior Technician1952276685
  19. Rachel HensbergerOccupational Therapist1811450802
  20. Richard HensleyBehavior Technician1831072040
  21. Francesca HerderAddiction (Substance Use Disorder) Counselor1326727132
  22. Meagan Herman, LCPCMental Health Counselor1437553880
  23. Sadie HermanBehavior Technician1386537629
  24. Rebecca Herman-Smith, D.O.Family Medicine Physician1447241997
  25. Carla Hernandez, LCSW-CClinical Social Worker1477152692
  26. Carmen Hernandez, M.D.Gastroenterology Physician1639172141
  27. Claudia HernandezProfessional Counselor1063044931
  28. Lismarie Hernandez, RDRegistered Dietitian1992251359
  29. Marlene HernandezMassage Therapist1578381786
  30. Melissa Hernandez, MDObstetrics & Gynecology Physician1598348633
  31. Brenda Herr, COTAOccupational Therapy Assistant1891253696
  32. Jeffrey Herrell, D.D.S.General Practice Dentistry1881672459
  33. Abigail HerringBehavior Technician1558986299
  34. Margaret Herring, LCSW-CClinical Social Worker1114930740
  35. Jeremy Hewes, LCPCMental Health Counselor1720610843
  36. Pamela Hewetson, M.S.Counselor1003144965
  37. Amy Heyman, DOObstetrics & Gynecology Physician1437289766
  38. Brian Heyman, D.O.Obstetrics & Gynecology Physician1902856289
  39. Taylor HickoxBehavior Technician1548121619
  40. Samantha Higginbothem, OTR/LPediatric Occupational Therapist1265100341
  41. Shannon Higgs, COTALOccupational Therapy Assistant1124143029
  42. John Higinbotham, ODOptometrist1952465528
  43. Callie Hildreth, LCSW-CClinical Social Worker1134636749
  44. Marianne Hiles, MSN, RN, APRN-CNSPerinatal Clinical Nurse Specialist1356949788
  45. Keia Hill, PHARM.DPharmacist1467020008
  46. Richard Hill, MDInternal Medicine Physician1477560944
  47. Robyn HillSpeech-Language Pathologist1942772686
  48. Christopher Hillman, AGACNP-BCAcute Care Nurse Practitioner1245730811
  49. Kelly Hiltz, OTOccupational Therapist1003945551
  50. Christopher Hinchman, D.C.Chiropractor1689600355

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.