Douglas Thomas Corwin, M.D.
Internal Medicine Physician · Washington, PA
Douglas Thomas Corwin, M.D. is an internal medicine physician with a practice address in Washington, Pennsylvania, and NPI 1699725580, issued on May 11, 2006. Check the license (Pennsylvania MD0588557L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Douglas Thomas Corwin
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- MD0588557L PA
Self-reported in NPPES; status is on the state search - Practice location
- 100 Park Place, Washington, PA 15301
- Phone
- (724) 229-7570
- Enumerated
- May 11, 2006
- Record last updated
- Jun 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (724) 229-7571
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 7,300 in Pennsylvania → Look up another NPI →
Verify Douglas Thomas Corwin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD0588557LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $124.11
1 payment: food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Douglas Thomas Corwin among 7,300 internal medicine physician records in Pennsylvania
Douglas Thomas Corwin, M.D. is one of 7,300 internal medicine physician records with a practice address in Pennsylvania. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 64% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 58% of these records are
- Record last updated2016 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
18 internal medicine physician records list a practice address in Washington
They are 18 of the 1,019 NPPES records with a practice address in Washington, and 7,300 internal medicine physician records in Pennsylvania.
All 7,300 in Pennsylvania → Every provider in Washington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Arcadio Agudelo Hernandez, M.DWashington, PA 153011477866093
- Catheri Brennan, CATHERINE J. BRENNANWashington, PA 153011134166903
- Henry Folb, M.D.Washington, PA 153011235119934
- Patricia Friedsam, M.D.Washington, PA 153011487604328
- Richard Hart, M.D.Washington, PA 153011053391268
- Sean Kelly, DOWashington, PA 153011174592760
- William Kottner, MDWashington, PA 153011518054204
- James Krebs, MDWashington, PA 153011851488548
Common questions
What is Douglas Thomas Corwin, M.D.'s NPI number?
Douglas Thomas Corwin, M.D.'s National Provider Identifier (NPI) is 1699725580, issued on May 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Douglas Thomas Corwin, M.D. located?
The NPPES record lists a practice address at 100 Park Place, Washington, PA, 15301. Phone: (724) 229-7570. Providers update this record themselves, so call before visiting.
How can I verify Douglas Thomas Corwin, M.D.'s license?
NPPES lists Pennsylvania license number MD0588557L, 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. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
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.