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 71 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
- Doan NguyenPharmacist1396346342
- Don Nguyen, M.D.Internal Medicine Physician1427012665
- Hien Nguyen, PHARMDPharmacist1679049696
- Ken Nguyen, OTR/LHand Occupational Therapist1295463222
- Michelle Nguyen, CRNPNurse Practitioner1982256855
- Minhthu Nguyen, PA-CPhysician Assistant1730901430
- Susan Nguyen, MSW, LCSWClinical Social Worker1477980506
- Van Nguyen, DOPain Medicine (Physical Medicine & Rehabilitation) Physician1700311404
- Anh Nguyen-Liang, O.D.Optometrist1437209103
- Katherine NiPeriodontics1750056008
- Joshua NiceClinical Social Worker1184377657
- Margaret Nicholas, MS, CCC-SLPSpeech-Language Pathologist1598404386
- Stephen Nichols, MDAnesthesiology Physician1972594935
- Rebecca Nickerson, PAPhysician Assistant1922119981
- Carrie NicklasProfessional Counselor1972977122
- Serban Nicolaescu, DMDOrthodontics and Dentofacial Orthopedics Dentistry1821256546
- Jessica NicoletProfessional Counselor1639858830
- Xingcao Nie, MDAnatomic Pathology & Clinical Pathology Physician1730458449
- Steven Nielson, DPMFoot Surgery Podiatrist1538595772
- Cierra NienhuisMental Health Counselor1902613896
- Diane Niesley, MSWClinical Social Worker1205997368
- Dana Nikles, CRNPFamily Nurse Practitioner1770936114
- Courtney Nissley, AGCNS-BCAcute Care Clinical Nurse Specialist1740943091
- Jared Nissley, M.D.Family Medicine Physician1386056034
- Kathleen Nissley, CRNPFamily Nurse Practitioner1629374822
- Michelle Nissly, PTAPhysical Therapy Assistant1275776957
- Emily NixonCounselor1144405911
- Sylvia NixonAdult Health Nurse Practitioner1780366518
- Lucy Njuguna, LPNLicensed Practical Nurse1164355467
- Kevin Nolt, M.D.Anesthesiology Physician1992190086
- Maria Noon, MSW, LSWSocial Worker1871722835
- Ross Norian, DMDDentist1851771307
- Lori Norman, CRNACertified Registered Nurse Anesthetist1588627210
- Kathy Nornhold, SLPSpeech-Language Pathologist1023498953
- Emily Norris, PA-CPhysician Assistant1821470659
- Jessica Norton, CRNPFamily Nurse Practitioner1083211361
- Tareck Nossuli, M.D.Advanced Heart Failure and Transplant Cardiology Physician1255492963
- Lexie NovielloLicensed Practical Nurse1689362865
- Peter Novosel, MDFamily Medicine Physician1295778769
- Danielle Nusbaum, CRNPGerontology Nurse Practitioner1326647074
- Megan Nusbaum, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1609736859
- Nancy Nyamoko, LPNLicensed Practical Nurse1114881554
- Kevin O'BoyleProfessional Counselor1154122877
- Katherine O'ConnellNeurocritical Care Physician1831628734
- Anna O'Connor, P.T.Physical Therapist1235175993
- Elizabeth O'Connor-Boll, MDInternal Medicine Physician1922092618
- Gregory O'Conor, M.D.Hematology & Oncology Physician1285602680
- Carolyn O'Donnell, R.PH. BCOPOncology Pharmacist1922383108
- Daniel O'Donnell, D.D.S.Dentist1386941987
- Morgan O'Donnell, LSWSocial Worker1740008515
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.