Doctors and health care providers in Mercer, PA
100 individual NPPES records list a practice address in Mercer, 296th of 816 Pennsylvania cities. The largest group is mental health counselor: 14, 14% of the city's records, against 4% across Pennsylvania. Page 2 of 2.
The 8 largest groups in Mercer
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Mercer in Pennsylvania
- Rank in Pennsylvania296th of 816 cities by records
- Share of the state<0.1% of Pennsylvania's records
- Specialties present25 or more taxonomy codes
- Top three groups33% of all records
Compared with Pennsylvania as a whole, Mercer has 3.6× the state's share of mental health counselor records.
Providers in Mercer, alphabetically
- Gillian Martin, LPCProfessional Counselor1184210759
- Rebecca Martin, LCSWClinical Social Worker1811279391
- Heather Martin-Radock, LSWSocial Worker1396293700
- Christa MastersSpeech-Language Pathologist1649098682
- Caitlyn Mattocks, DPTPhysical Therapist1033094222
- Linda MattocksFamily Nurse Practitioner1124109947
- Megan McBride, PA-CMedical Physician Assistant1659942944
- Larry McNeishMental Health Counselor1508557182
- Charles Miller, DMDDentist1215041389
- Stefanie Montgomery, LPCProfessional Counselor1518108737
- Scott Morgan, MDFamily Medicine Physician1467419689
- Brijette Morris, LSWSocial Worker1396882379
- James Mostard-SmithAthletic Trainer1235584376
- Aloysius Murcko, DMDOral & Maxillofacial Surgery (D.M.D.)1669694964
- Matthew Oczypok, MDEmergency Medicine Physician1962935387
- April OrdonezSocial Worker1750855565
- Kevin Pollock, CRNACertified Registered Nurse Anesthetist1376557587
- Elo PrannoClinical Social Worker1912441791
- William ReinheimerPhysical Therapist1770168395
- Keith Rowlands, O.D.Optometrist1679568695
- Karie Rust, L.AC.Acupuncturist1265722292
- Kaylee SalmenOccupational Therapist1487234324
- Robert Saunders, PTAPhysical Therapy Assistant1245984897
- Benjamin Shipton, DOFamily Medicine Physician1912980723
- Heather Shoemaker, RPHPharmacist1548538036
- Angela SmeltzerPhysical Therapy Assistant1790365781
- Shelly Somers, CRNPNurse Practitioner1467439422
- Danielle SpanglerOccupational Therapy Assistant1255084414
- Briana SteeleMental Health Counselor1437584372
- Rebecca SteffanusFamily Nurse Practitioner1033832845
- Douglas Steltzer, ODOptometrist1033295076
- Joshua StormMental Health Counselor1053883496
- Derek Stotsky, LPCMental Health Counselor1316767866
- Caitlyn SwartzAthletic Trainer1417335597
- June TaylorClinical Social Worker1609909381
- Crystal ThompsonMental Health Counselor1962061192
- Jennifer Thumm, M.A.Professional Counselor1760728646
- Natalie TompkinsProfessional Counselor1922799584
- William Vaughn, D.C.Chiropractor1770607079
- Judith Veon, APRN, BCChild & Adolescent Psychiatric/Mental Health Clinical Nurse Specialist1538135306
- Tamera VukasFamily Nurse Practitioner1073435228
- Nelda Walters, NPFamily Nurse Practitioner1366618233
- Allison Way, PA-CPhysician Assistant1689566796
- Cheryl WildMental Health Counselor1760514053
- Erin Williams, MS CCC-SLPSpeech-Language Pathologist1699398735
- Ebony Winger, LSWSocial Worker1093085540
- Jodie Witherite, LCSWClinical Social Worker1972578292
- James WogeSpeech-Language Pathologist1194126904
- Kelly Wolbert, CRNPNurse Practitioner1073488995
- Brian Wolfson, MDEmergency Medicine Physician1154386050
The largest Pennsylvania cities
- Philadelphia42,849
- Pittsburgh28,866
- Allentown5,904
- Lancaster5,378
- Erie5,083
How to read this directory
Mercer, Pennsylvania appears in the CMS National Plan and Provider Enumeration System with 100 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 Mercer - 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 Mercer 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 Mercer is weighted toward Mental Health Counselor (14 clinicians, followed by Professional Counselor with 12 and Family Nurse Practitioner with 7). 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, Mercer reports roughly 0.8 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 Mercer practice address, a coverage gap Mercer patients typically fill by traveling to a larger nearby hub.
For Mercer 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 Mercer, PA?
There are 100 registered healthcare providers in Mercer, PA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Mercer?
The most common specialties in Mercer are Mental Health Counselor, Professional Counselor, Family Nurse Practitioner, Pharmacist, Clinical Social Worker. Mental Health Counselor has the most providers with 14.
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.