Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John P Weaver, M.D.

Q: What is the NPI number for John Weaver?

The National Provider Identifier (NPI) for John Weaver is 1285618918, a Type 1 (individual) record in the CMS NPPES registry.

Neurological Surgery Physician in Reading, PA · enumerated 2005 · practices at Penn State Health Medical Group, LLC.

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

National Provider Identifier

1285618918

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. John P Weaver

Credential M.D.

Sex Male

Practice address 2494 Bernville Rd Ste 200, Reading, PA, 19605

Phone (610) 378-2557

Fax (610) 208-8839

Enumeration date Dec 6, 2005

Last updated in NPPES Feb 13, 2019

Taxonomy & licenses

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License 76211 (MA) Secondary

207T00000X Neurological Surgery Physician Allopathic & Osteopathic Physicians · License MD465745 (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
110051598A	Medicaid	MA	-

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

What is the NPI number for John Weaver?

The National Provider Identifier (NPI) for John Weaver is 1285618918, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Weaver practice?

The practice location on file with NPPES is in Reading, PA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-13.