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 23 of 108.
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
- John DellalanaDentist1023812021
- Earl Delong, PH.D.Psychologist1477906881
- Ryan Delong, M.D.Family Medicine Physician1629134036
- Dennis Delozier, PACPhysician Assistant1104801695
- Hilary DelpAthletic Trainer1518841311
- Jeanine Delp, LPNLicensed Practical Nurse1598602625
- Thomas Delrocini, RPHPharmacist1801384367
- Jennifer Delutis, M.D.Internal Medicine Physician1558573782
- Carolyn Demarra, M.S., LPC, CBISProfessional Counselor1932618360
- Caralyn DembroskyPhysician Assistant1720469323
- Claire Dempsey, M.S.ED.Professional Counselor1548954837
- Rebecca Dempsey, LPCProfessional Counselor1659585396
- Zhanna Demyantsev, CRNPFamily Nurse Practitioner1497436323
- Kathleen Den Bleyker, PSY DClinical Psychologist1043311970
- Christie Deneen, OTAOccupational Therapy Assistant1932470069
- Heather Denlinger, C.N.M.Maternal Newborn Registered Nurse1174510093
- Stacey Denlinger, DOFamily Medicine Physician1851635239
- Steven Denlinger, LSWSocial Worker1477754570
- Jade Dennis, LPCProfessional Counselor1235731738
- Brittany Denton, LSWSocial Worker1528803095
- Garrett DenzlerProfessional Counselor1437825403
- Craig Depoe, MDAnesthesiology Physician1821088998
- Mary Depoe, CRNPPediatric Nurse Practitioner1124004163
- Ellen Depoy, MDNeurology Physician1992230726
- Hannah DeppenPhysical Therapist1033864301
- Kathryn Deprimo, MD, MHAInternal Medicine Physician1750992855
- John Derderian, DOInternal Medicine Physician1477595445
- Meghan Dermody, M.D.Vascular Surgery Physician1265552608
- Alexandria Derose, CRNPFamily Nurse Practitioner1316340730
- Leann DerrCounselor1407709165
- Anne-Marie Derrico, MDFamily Medicine Physician1982658050
- Christen Desarro, DPTPhysical Therapist1306351622
- Leigh Deshong, M.D.Geriatric Medicine (Internal Medicine) Physician1720354210
- Swapna Deshpande, MDInternal Medicine Physician1689616583
- Amy Desmond, ODVision Therapy Optometrist1952602120
- C Katherine Destefano, LPCMental Health Counselor1306968649
- Melissa Destefano, PA-CMedical Physician Assistant1265461313
- Joann Detweiler, CRNPAdult Health Nurse Practitioner1811950702
- Kimberly Detweiler, BSN, RNOrthopedic Registered Nurse1386565521
- Maria Detweiler, LPCProfessional Counselor1619774155
- Mary Detweiler, LCSWClinical Social Worker1053324194
- Christine Detwiler, CRNPFamily Nurse Practitioner1104201862
- Rachel Dever, D.O.Cardiovascular Disease Physician1821520263
- Marianne Devlin, CRNACertified Registered Nurse Anesthetist1558322131
- Aliza Devoe, MSW, LSWSocial Worker1407738057
- Jamie Devoe, LPCProfessional Counselor1215571401
- Andrew Dewalt, PA-CPhysician Assistant1871264598
- Nicoleta DiaconuRegistered Nurse1447143441
- Ibrahim Diakhate, CRNPNurse Practitioner1679441604
- Hadiyatou DialloLicensed Practical Nurse1568262970
The largest Pennsylvania cities
- Philadelphia42,849
- Pittsburgh28,866
- Allentown5,904
- Erie5,083
- Plymouth Meeting5,019
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.