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 28 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. Stephen Green, LCPCMental Health Counselor1801941174
  2. Tara GreenPharmacist1184225344
  3. Maria GreenbergBehavior Technician1558008524
  4. Pamela Greenwood, CRNPPediatric Nurse Practitioner1407841364
  5. Elizabeth GregorioBehavior Technician1487222105
  6. Karen Gregory, FNP-CFamily Nurse Practitioner1265997845
  7. Joanna Greisler, CRNPPediatric Nurse Practitioner1346673415
  8. Marina Grekova, RPHPharmacist1568177756
  9. Brooke Greyhart, PHD, LPClinical Psychologist1578116158
  10. Aujah Griffin, LMSWClinical Social Worker1275143638
  11. Caitlin Griffin, DPTPediatric Physical Therapist1720791114
  12. Joel Griffith, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1508338203
  13. Kendall GriffithBehavior Technician1720944630
  14. Catherine Griffiths, LCSW-CClinical Social Worker1306310305
  15. Emily Grigsby, PMHNP BCPsychiatric/Mental Health Nurse Practitioner1134916174
  16. Jessica Grigsby, RDMS, RDCSSonography Radiologic Technologist1215813860
  17. Kimberly Grimberg, LGPCCounselor1265356620
  18. Laura GrimesProfessional Counselor1326736711
  19. Tara Grimes, OTNeurorehabilitation Occupational Therapist1902020712
  20. James Grissom, M.D.Internal Medicine Physician1881695898
  21. Allison Groff, M.D.Obstetrics & Gynecology Physician1346568557
  22. Lauren Groft, DPTPhysical Therapist1427512706
  23. Amia GroomesBehavior Technician1225823586
  24. Tasheena GroomesBehavior Technician1831967819
  25. Benjamin GrossBehavior Technician1760166060
  26. Holly Gross, M.D.Ophthalmology Physician1164498598
  27. Sarah Gross, DNP, CRNPPediatric Nurse Practitioner1053920751
  28. Donna Grossnickle, LCSW-CClinical Social Worker1245443894
  29. Kimberly Grossnickle, CRNPFamily Nurse Practitioner1134685183
  30. Frank Grosso, D.D.S.Dentist1891944880
  31. Kaitlyn Grosso, D.D.S.General Practice Dentistry1093111874
  32. Adrienne GroveBehavior Technician1699513085
  33. Angela Grove, D.C.Chiropractor1609286970
  34. Brittany GroveBehavior Technician1447867577
  35. Jessica GrozingerBehavior Technician1508750613
  36. Claire Grunes, LMSWSocial Worker1215658349
  37. Patricia Grunwald, PHARMDPharmacotherapy Pharmacist1104849611
  38. Chaoning Gu, PHARM DPharmacist1922133529
  39. Victoria GudemanClinical Social Worker1154787976
  40. Anavi GudewichBehavior Technician1962270280
  41. Ruby Guillermo, PTPhysical Therapist1962697078
  42. Kallie Guimond, OMDAcupuncturist1871035139
  43. Harpreet Gulati, MDInternal Medicine Physician1235532912
  44. Taylor Gum, DPTSports Medicine (Physical Medicine & Rehabilitation) Physician1588236780
  45. Terri Gumm, LCSWClinical Social Worker1467668913
  46. Achala Gunasena, PA-CPhysician Assistant1497282610
  47. Julie GuntherBehavior Technician1255984274
  48. Lindsay Guntow, LCSW-CClinical Social Worker1477802650
  49. Joel Gunzburg, LCSW-CClinical Social Worker1508062209
  50. Garima Gupta, DDSPediatric Dentistry1548515836

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.