NPPES file of Aug 9, 2026

Doctors and health care providers in Irwin, PA

933 individual NPPES records list a practice address in Irwin, 47th of 816 Pennsylvania cities. The largest group is behavior technician: 604, 65% of the city's records, against 2% across Pennsylvania. Page 7 of 19.

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

Irwin in Pennsylvania

  • Rank in Pennsylvania47th of 816 cities by records
  • Share of the state0.4% of Pennsylvania's records
  • Specialties present25 or more taxonomy codes
  • Top three groups74.8% of all records
  • Behavior Technician rank2nd of the 10 Pennsylvania cities with the most

Compared with Pennsylvania as a whole, Irwin has 37.5× the state's share of behavior technician records and 0.26× its share of pharmacist records.

Providers in Irwin, alphabetically

  1. Hannah GrahamBehavior Technician1689455776
  2. Jodi GrahamBehavior Technician1336865237
  3. Genevieve GralewskiBehavior Technician1952009987
  4. Devon Granny, CRNPFamily Nurse Practitioner1932823960
  5. Elizabeth Gray, PSYDPsychologist1083282917
  6. Jacqueline GrayBehavior Technician1609673375
  7. Jaden GrayBehavior Technician1396471371
  8. Julia GrayBehavior Technician1114653193
  9. Sharon GrayBehavior Technician1699486811
  10. Brianna GreenMental Health Counselor1619673332
  11. Grace GreenBehavior Technician1861124166
  12. Eveanne Greene, CRNPPsychiatric/Mental Health Nurse Practitioner1548771116
  13. Shaina GreivesBehavior Technician1215506084
  14. Mia Grill, NPNurse Practitioner1730985128
  15. Morgan GrimmBehavior Technician1184446320
  16. Mary GrossClinical Social Worker1366169963
  17. Jennifer GruberMental Health Counselor1134903503
  18. Ashley GrzelewskiBehavior Technician1407428774
  19. Alyssa GuckelbergerBehavior Technician1902727159
  20. Madison GulishBehavior Technician1316679517
  21. Brittany GuthrieBehavior Technician1184481483
  22. Dean Hager, LMTMassage Therapist1114233061
  23. Vayda HagermanBehavior Technician1598683161
  24. Michael Hahalyak, DOFamily Medicine Physician1306889605
  25. Nana HaidaraBehavior Technician1902510308
  26. Jessie HalapiaMental Health Counselor1174234884
  27. Ashley HallBehavior Technician1104705862
  28. Heaven HallBehavior Technician1255127254
  29. Sabrina HallBehavior Technician1952288243
  30. Deirdra HammackBehavior Technician1467155804
  31. Jessica Hammon, LCSWClinical Social Worker1205614369
  32. Jason HaneyBehavior Technician1912859109
  33. Rebecca Haney, NCCCounselor1043192362
  34. Abigail HanleyBehavior Technician1811776537
  35. Kristen Hanley, M.D.Pediatrics Physician1255535407
  36. Michele Hanley, O.D.Optometrist1891723508
  37. Ashley HanzesBehavior Analyst1386319614
  38. Shalyn HardyBehavior Technician1568136539
  39. Alexandra HarmonBehavior Technician1457054801
  40. Asia HarrisBehavior Technician1275408676
  41. Kiyonna HarrisBehavior Technician1902766686
  42. Jordan Harrison, PHARMDPharmacist1619797065
  43. Jessica HartBehavior Technician1881330546
  44. Mikalana HartzBehavior Technician1720776982
  45. Marina HartzellBehavior Technician1174475362
  46. Mark Harvey, D.M.D.Pediatric Dentistry1962556589
  47. Stacey HasleyBehavior Technician1861107484
  48. Behnam Hatam, CRNPFamily Nurse Practitioner1033753256
  49. Lydia HaughtBehavior Analyst1205436672
  50. Lucas Heller, M.D.Endocrinology, Diabetes & Metabolism Physician1982970976

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

Irwin, Pennsylvania appears in the CMS National Plan and Provider Enumeration System with 933 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 Irwin - 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 Irwin 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 Irwin is weighted toward Behavior Technician (604 clinicians, followed by Behavior Analyst with 58 and Mental Health Counselor with 36). 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, Irwin reports roughly 7.2 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, Internal Medicine Physician is the most prominent one with no provider currently listing a Irwin practice address, a coverage gap Irwin patients typically fill by traveling to a larger nearby hub.

For Irwin 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 Irwin, PA?

There are 933 registered healthcare providers in Irwin, PA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Irwin?

The most common specialties in Irwin are Behavior Technician, Behavior Analyst, Mental Health Counselor, Professional Counselor, Family Medicine Physician. Behavior Technician has the most providers with 604.

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.