Registry data as of Aug 27, 2026

Doctors and health care providers in Derry, PA

19 individual NPPES records list a Derry practice address, 637th of 816 Pennsylvania cities. The largest group is pharmacist: 4, 21% of the city's records, against 5% across Pennsylvania.

CMS NPPES registry, loaded Aug 27, 2026 · method · Verify with CMS →

The 8 largest groups in Derry

Source: CMS NPPES primary taxonomy, loaded Aug 27, 2026.

Derry in Pennsylvania

  • Rank in Pennsylvania637th of 816 cities by records
  • Share of the state<0.1% of Pennsylvania's records
  • Specialties present10 taxonomy codes
  • Top three groups52.6% of all records
  • Pharmacist rank11th of the 10 Pennsylvania cities with the most

Providers in Derry, alphabetically

  1. Jared Allison, D.C.Chiropractor1902331879
  2. Timothy Allison, DCChiropractor1518192558
  3. Brian Bobby, PHARM.D.Pharmacist1083831952
  4. Brianna Boliver, D.C.Chiropractor1336674704
  5. Jessica Brown, BA, CD/PCD(DONA)Doula1437897394
  6. Matthew Clever, LPC, MA, CAADCProfessional Counselor1083350243
  7. Mishele Cowan, MACCC-SLPSpeech-Language Pathologist1336333533
  8. Paige GreenDoula1750787354
  9. Melissa HackmanOccupational Therapist1477966653
  10. Lila Hughes, LPCProfessional Counselor1770230955
  11. Shannon Kovalchick, LPCProfessional Counselor1912689605
  12. Edward Morgan, D.M.D.General Practice Dentistry1720179815
  13. Elizabeth Naggy, RPHPharmacist1699122473
  14. Matthew Oleyar, PA-CStudent in an Organized Health Care Education/Training Program1962178905
  15. Kelly Perkins, PHARMDPharmacist1528218476
  16. Karen Ridilla, RPHPharmacist1376860858
  17. Samantha Thompson, MA, NCC, LPCMental Health Counselor1881421303
  18. Prakash Vin, MDInternal Medicine Physician1902892813
  19. Ronald Zsembik, D.M.D.General Practice Dentistry1235220260

The largest Pennsylvania cities

  1. Philadelphia42,849
  2. Pittsburgh28,866
  3. Allentown5,904
  4. Lancaster5,378
  5. Erie5,083

All of Pennsylvania →

How to read this directory

Derry, Pennsylvania appears in the CMS National Plan and Provider Enumeration System with 19 registered healthcare providers spanning 10 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Derry - 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 Derry 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 Derry is weighted toward Pharmacist (4 clinicians, followed by Chiropractor with 3 and Professional Counselor with 3). 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 Pennsylvania's population, Derry reports roughly 0.1 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 Pennsylvania's most common specialties, Physical Therapist is the most prominent one with no provider currently listing a Derry practice address, a coverage gap Derry patients typically fill by traveling to a larger nearby hub.

For Derry 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 Derry, PA?

There are 19 registered healthcare providers in Derry, PA, covering 10 specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Derry?

The most common specialties in Derry are Pharmacist, Chiropractor, Professional Counselor, Doula, General Practice Dentistry. Pharmacist has the most providers with 4.

Source: CMS National Plan and Provider Enumeration System (NPPES), file loaded Aug 27, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.