Gregory Stuart Williams, MD
Pulmonary Disease Physician · Paoli, PA
Gregory Stuart Williams, MD is a pulmonary disease physician with a practice address in Paoli, Pennsylvania, and NPI 1417982166, issued on Jul 11, 2006. Check the license (Pennsylvania MD022050E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Gregory Stuart Williams
- Credential
- MD
- Primary taxonomy
- Pulmonary Disease Physician 207RP1001X
- License number
- MD022050E PA
Self-reported in NPPES; status is on the state search - Practice location
- 255 W Lancaster Ave, Paoli, PA 19301
- Phone
- (610) 648-0553
- Enumerated
- Jul 11, 2006
- Record last updated
- Mar 29, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (610) 640-1390
- Medicaid ID
- 0007716460002 PA
- Entity
- Type 1 · individual
8 nearest pulmonary disease physician records → All 779 in Pennsylvania → Look up another NPI →
Also registered at 255 W Lancaster Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Stuart Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD022050ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Gregory Stuart Williams among 779 pulmonary disease physician records in Pennsylvania
Gregory Stuart Williams, MD is one of 779 pulmonary disease physician records with a practice address in Pennsylvania. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 53% newer
- In a Medicare fileNo · 86% of these records are
- In the CMS Doctors and Clinicians fileNo · 73% of these records are
- Record last updated2012 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RP1001X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pulmonary Disease Physician providers in Pennsylvania
There are 779 pulmonary disease physician records in Pennsylvania. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 779 in Pennsylvania → Every provider in Paoli → Pulmonary Disease Physician nationwide →
The 8 pulmonary disease physician records with the nearest ZIP codes
- Melissa Calder, D.O.Paoli, PA 193011366735367
- Ronald Barnett, MDBerwyn, PA 193121477515815
- Siva Ramachandran, MDBerwyn, PA 193121215902937
- Justin Wong, M.D.Chadds Ford, PA 193171184919144
- Robert Hindman, DOCoatesville, PA 193201992705552
- John Tooker, M.D.Devon, PA 193331922376326
- Andre Van AsWest Chester, PA 193801770885055
- Victor Galati, M.D.West Grove, PA 193901578805578
Common questions
What is Gregory Stuart Williams, MD's NPI number?
Gregory Stuart Williams, MD's National Provider Identifier (NPI) is 1417982166, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Stuart Williams, MD located?
The NPPES record lists a practice address at 255 W Lancaster Ave, Paoli, PA, 19301. Phone: (610) 648-0553. Providers update this record themselves, so call before visiting.
How can I verify Gregory Stuart Williams, MD's license?
NPPES lists Pennsylvania license number MD022050E, 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.
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.