Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Geisinger Clinic

Q: What is the NPI number for Geisinger Clinic?

The NPI for Geisinger Clinic is 1376979534, a Type 2 (organization) record in the CMS NPPES registry.

Family Medicine Physician in Williamsport, PA · enumerated 2013 · authorized official Cindy Mull, System Director Enrollments.

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

National Provider Identifier

1376979534

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Geisinger Clinic

Practice address 824 E Third Street, Williamsport, PA, 17701

Phone (570) 601-2200

Fax (570) 601-2202

Enumeration date Sep 19, 2013

Last updated in NPPES Apr 9, 2020

Taxonomy & classification

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians Primary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Secondary

Authorized official

Name Cindy Mull

Title System Director Enrollments

Phone (570) 271-6603

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 Geisinger Clinic?

The NPI for Geisinger Clinic is 1376979534, a Type 2 (organization) record in the CMS NPPES registry.

Who is the authorized official for Geisinger Clinic?

NPPES lists Cindy Mull (System Director Enrollments) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-04-09.