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 60 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. Rachel ResnickPhysical Therapist1366377723
  2. Nancy Retter, CNMAdvanced Practice Midwife1700594231
  3. Dan Patrick Reyes, PTPhysical Therapist1528946704
  4. Olivia Reyes, LGPCMental Health Counselor1588556575
  5. Elizabeth Reynolds, MS, RDN, LDNRegistered Dietitian1255155701
  6. David Rhee, M.D.Diagnostic Radiology Physician1215964416
  7. Nancy Rhinelander, LACAcupuncturist1497973812
  8. Lauren RiceClinical Social Worker1457761876
  9. Marie RiceFamily Nurse Practitioner1366197741
  10. Nyhla RiceBehavior Technician1457205957
  11. Patricia Rice, CRNPAdult Health Nurse Practitioner1023000973
  12. Susan RiceOccupational Therapist1588057525
  13. Brenda Rich, PTOrthopedic Physical Therapist1144416470
  14. Angeline Richards, LCSW-CClinical Social Worker1033823802
  15. Laura Richards, ATC, LATAthletic Trainer1811231376
  16. Karen Richardson, LCSWClinical Social Worker1649246901
  17. Laurey Richmond, LCPCMental Health Counselor1588877476
  18. Jacqueline Ricketts, GNA/CNANurse's Aide1992300438
  19. Rebecca Ridenour, RDN, LDNRegistered Dietitian1568909331
  20. Michelle Ridgeway, CRNPPsychiatric/Mental Health Nurse Practitioner1730677121
  21. Rachel Ridgway, MS, PA-CPhysician Assistant1174775704
  22. Dawn Riesett, PA-CPhysician Assistant1487768834
  23. Chelsi Riffe, LCSW-CClinical Social Worker1750816112
  24. Michael Rifkin, M.D.Gastroenterology Physician1932198116
  25. Grace Riley, PSY.D.Psychologist1134426083
  26. Stephanie Rimel, BSW, FCS, RBTBehavior Technician1700662970
  27. Anne Rinehart, LCSW-CClinical Social Worker1144259045
  28. Katherine Rinkes, AUDAudiologist-Hearing Aid Fitter1174785653
  29. Melissa Rios, OTR/LOccupational Therapist1821636556
  30. Paola RiosInterpreter1942095633
  31. Nicole RipkenClinical Social Worker1497183313
  32. Lorena Ripoll, LCSW-CSocial Worker1144646050
  33. Austin Rippeon, DDSGeneral Practice Dentistry1952316739
  34. Travis Riser, LCPCCounselor1912475435
  35. Carrie RitchieBehavior Technician1326556168
  36. Jacqueline Ritz, LCPCProfessional Counselor1538612809
  37. Edward Riuli, M.D.Cardiovascular Disease Physician1932102654
  38. Robert Rivard, MDInfectious Disease Physician1629052121
  39. Janely Rivas, LCSW-CClinical Social Worker1639820384
  40. Emma RiveraCommunity Health Worker1407247638
  41. Jasmine Rivera, MS, LGPCProfessional Counselor1801459136
  42. Stephanie Rivera GuevaraBehavior Technician1598608655
  43. Melissa Rivera-Smith, LCPCProfessional Counselor1730749979
  44. Michelle RizkSocial Worker1184197212
  45. Sarah Rizzo, MA, LCPC, NCCMental Health Counselor1992369078
  46. Alvin Ro, D.D.S.Endodontics1730300609
  47. Christopher RoachCertified Respiratory Therapist1275920993
  48. Jacqueline RoachPharmacist1518413541
  49. Jaheedah Roane, M.D.Pediatric Cardiology Physician1346531985
  50. Christie Robbins, FNPFamily Nurse Practitioner1154613065

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.