Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Geisinger Clinic

Q: What type of organization is Geisinger Clinic?

Geisinger Clinic is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Internal Medicine Physician in Lewistown, PA · enumerated 2006 · authorized official Cindy Mull, System Director Enrollments.

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

National Provider Identifier

1770534166

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Registry record

Entity type Organization (Type 2)

Legal business name Geisinger Clinic

Practice address 21 Geisinger Ln, Lewistown, PA, 17044

Phone (717) 242-4200

Enumeration date May 12, 2006

Last updated in NPPES Feb 25, 2025

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

207RC0000X Cardiovascular Disease Physician Allopathic & Osteopathic Physicians Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians Secondary

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians Secondary

291U00000X Clinical Medical Laboratory Laboratories Secondary

332B00000X Durable Medical Equipment & Medical Supplies Suppliers Secondary

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 a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Geisinger Clinic?

Geisinger Clinic is registered in NPPES as a Internal Medicine Physician (its primary provider taxonomy).

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-25.