NPPES file of Aug 9, 2026

Abby Melissa Irwin, M.D.

Psychiatry Physician · Lewisburg, PA

Abby Melissa Irwin, M.D. is a psychiatry physician with a practice address in Lewisburg, Pennsylvania, and NPI 1033444922, issued on Oct 9, 2009. Check the license (Pennsylvania MD453761, as entered in NPPES) on the Pennsylvania Department of State (PALS); the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1033444922
Name
Abby Melissa Irwin
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
MD453761 PA
A109129 CA
Self-reported in NPPES; status is on the state search
Practice location
115 Farley Cir, Lewisburg, PA 17837
Phone
(570) 428-9405
Enumerated
Oct 9, 2009
Record last updated
Aug 23, 2016 (not updated in 10 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 115 Farley Cir

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jason Alabakoff, D.D.S., M.D.Oral and Maxillofacial Surgery (Dentist)1083833032
  2. Allen Flock, MSWClinical Social Worker1760553275
  3. Ryan Graver, D.M.D.Endodontics1699941096
  4. Carol Graybeal, LCSWClinical Social Worker1265506554
  5. William Hauck, PH.D.Psychologist1619019064
  6. Frank Oswald, PTPhysical Therapist1174539720

Verify Abby Melissa Irwin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
    Search for license MD453761    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Pennsylvania license search

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Psychiatry Physician providers in Pennsylvania

There are 2,662 psychiatry physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,662 in Pennsylvania → Every provider in Lewisburg →

Other psychiatry physician records in Pennsylvania

  1. Raja Abbas, M.D.Lehighton, PA1306057294
  2. Saleha Abbas, M.D.Upland, PA1144283052
  3. David Abel, MDDoylestown, PA1881637163
  4. Rolf Abel, MDWilkes Barre, PA1427048917
  5. Kian AbolhodaPhiladelphia, PA1013844885
  6. Dara Abraham, D.OPhiladelphia, PA1316109549
  7. George Abraham, PCLafayette Hill, PA1679552368
  8. John Abulu, MBBS, MDPhiladelphia, PA1700052172
  9. Thalia Acosta, MDPittsburgh, PA1790909224
  10. Marilyn Adam, M.D.York, PA1548698103

Common questions

What is Abby Melissa Irwin, M.D.'s NPI number?

Abby Melissa Irwin, M.D.'s National Provider Identifier (NPI) is 1033444922, issued on Oct 9, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Abby Melissa Irwin, M.D. located?

The NPPES record lists a practice address at 115 Farley Cir, Lewisburg, PA, 17837. Phone: (570) 428-9405. Providers update this record themselves, so call before visiting.

How can I verify Abby Melissa Irwin, M.D.'s license?

NPPES lists Pennsylvania license number MD453761, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.