NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William D. Sullivan, M.D.

Pulmonary Disease Physician in Meadville, PA · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1245233568

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. William D. Sullivan
Credential M.D.
Sex Male
Practice address 751 Liberty St, Meadville, PA, 16335
Fax (814) 336-6256
Enumeration date May 31, 2005
Last updated in NPPES Feb 13, 2014

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License MD027451E (PA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
0008745270001 Medicaid PA -
251754199 Other PA MEDICAL MUTUAL OF OHIO
4235190002 Other PA NATIONAL SUPPLIERS CLEARINGHOUSE
C30051 Other PA HEALTH AMERICA
020102200 Other PA BLACK LUNG PROGRAM
0650611 Medicaid PA -
82392 Other PA UNISON HEALTH PLAN
290007406 Other PA PALMETTO GBA-RAILROAD MEDICARE
205046 Other PA UPMC HEALTH PLAN
902561 Other PA HIGHMARK BLUE CROSS BLUE SHIELD

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify William Sullivan's NPI record?
Cross-check NPI 1245233568 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1245233568 active?
Yes, as of the latest NPPES snapshot, NPI 1245233568 is active (record last updated 2014-02-13).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-02-13.