NPPES file of Aug 9, 2026

Doctors and health care providers in Lancaster, PA

5,378 individual NPPES records list a practice address in Lancaster, 4th of 816 Pennsylvania cities. The largest group is licensed practical nurse: 366, 7% of the city's records, against 2% across Pennsylvania. Page 90 of 108.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Lancaster

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Lancaster in Pennsylvania

  • Rank in Pennsylvania4th of 816 cities by records
  • Share of the state2.1% of Pennsylvania's records
  • Specialties present25 or more taxonomy codes
  • Top three groups15.5% of all records
  • Licensed Practical Nurse rank2nd of the 10 Pennsylvania cities with the most

Compared with Pennsylvania as a whole, Lancaster has 4.5× the state's share of licensed practical nurse records and 0.60× its share of internal medicine physician records.

Providers in Lancaster, alphabetically

  1. Jessica SimeralCounselor1083122782
  2. Ayana SimmonsLicensed Practical Nurse1922828318
  3. Heather SimmonsRegistered Nurse1962948299
  4. Julie Simmons, LPCProfessional Counselor1679987473
  5. Mark Simmons, M.D.Internal Medicine Physician1619959285
  6. Molly Simmons, LPCMental Health Counselor1124346010
  7. Vanessa Simmons, MS, LPCProfessional Counselor1790240430
  8. Deborah SimmsAddiction (Substance Use Disorder) Counselor1417336389
  9. Alexandria SimonLicensed Practical Nurse1316789076
  10. Paul Simonelli, D.O.Orthopaedic Surgery Physician1174519078
  11. Tammy Simpson, CRNACertified Registered Nurse Anesthetist1467455972
  12. Shelina SimsLicensed Practical Nurse1821885708
  13. Skylar Sims, AMFTMarriage & Family Therapist1609687672
  14. Stephanie SimsMarriage & Family Therapist1174113187
  15. Kishor Singapuri, MDRadiation Oncology Physician1336127018
  16. Surender Singh, M.D.Cardiovascular Disease Physician1376534339
  17. Trilochan Singh, MDInternal Medicine Physician1588044473
  18. Jessica SingleyBehavior Analyst1447995014
  19. Nikki Singley, PTPhysical Therapist1629681366
  20. Stephanie SinkoskyBehavior Analyst1558875641
  21. Denise Sipe, LSWClinical Social Worker1275936387
  22. Martha Sipe, NPNurse Practitioner1184098089
  23. Caitlin SipleCounselor1326566654
  24. Crystal Sipling, LPCCounselor1124709084
  25. Sudhamshu Sirisinahal, DOInternal Medicine Physician1124382080
  26. Gayle Sisbarro, D.O.Family Medicine Physician1801881792
  27. Mariam SissokoLicensed Practical Nurse1548158827
  28. Shanthi Sivendran, M.D.Hematology & Oncology Physician1699988147
  29. April SkapczynskiLicensed Practical Nurse1487415667
  30. Anthony Skiadas, DMDDentist1083756886
  31. Christine Skiadas, M.D.Reproductive Endocrinology/Infertility Registered Nurse1407914708
  32. Edward Skicki, DOSurgical Critical Care Physician1063853539
  33. Jodi Skiles, CADCAddiction (Substance Use Disorder) Counselor1972983971
  34. Makenzie Skiles, OTROccupational Therapist1831780972
  35. Michael Skiles, MSW, LSWSocial Worker1043720402
  36. Robert Skiles, CAADC, CCSAddiction (Substance Use Disorder) Counselor1043690050
  37. Stanley Skolnick, O.DOptometrist1285786517
  38. George Skowronski, M.ED.Audiologist-Hearing Aid Fitter1710177993
  39. Andrew Slater, DOFamily Medicine Physician1568029676
  40. Lydia Slater, DOInternal Medicine Physician1720570724
  41. Kevin Slenker, MDAnesthesiology Physician1134110190
  42. Rhonda Slinghoff, CRNPPsychiatric/Mental Health Nurse Practitioner1053924068
  43. Michelle SloanOccupational Therapist1891829701
  44. Chase Sloat, PA-CPhysician Assistant1639645914
  45. John Slovak, M.D.Cardiovascular Disease Physician1417924697
  46. Megan Slover, CRNPAcute Care Nurse Practitioner1699314054
  47. Kristina Sloyer, MSW, LSWMarriage & Family Therapist1588264410
  48. Roy Small, M.D.Advanced Heart Failure and Transplant Cardiology Physician1235106410
  49. Erika SmeltzRegistered Nurse1144036807
  50. Gene Smigocki, M.D.Diagnostic Radiology Physician1932102324

The largest Pennsylvania cities

  1. Philadelphia42,849
  2. Pittsburgh28,866
  3. Allentown5,904
  4. Erie5,083
  5. Plymouth Meeting5,019

All of Pennsylvania →

How to read this directory

Lancaster, Pennsylvania appears in the CMS National Plan and Provider Enumeration System with 5,378 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 Lancaster - 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 Lancaster 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 Lancaster is weighted toward Licensed Practical Nurse (366 clinicians, followed by Professional Counselor with 251 and Physical Therapist with 216). 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, Lancaster reports roughly 41.5 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Lancaster practice address, a coverage gap Lancaster patients typically fill by traveling to a larger nearby hub.

For Lancaster 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 Lancaster, PA?

There are 5,378 registered healthcare providers in Lancaster, PA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Lancaster?

The most common specialties in Lancaster are Licensed Practical Nurse, Professional Counselor, Physical Therapist, Family Medicine Physician, Clinical Social Worker. Licensed Practical Nurse has the most providers with 366.

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.