Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Gregory C. Fanelli, M.D.

Orthopaedic Surgery Physician in Danville, PA · enumerated 2006 · practices at Geisinger Clinic.

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

National Provider Identifier

1487621611

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory C. Fanelli

Credential M.D.

Sex Male

Practice address 16 Woodbine Lane, Danville, PA, 17822

Phone (570) 271-6700

Fax (570) 214-6700

Enumeration date Mar 7, 2006

Last updated in NPPES Aug 24, 2020

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD033928E (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
001204598	Medicaid	PA	-

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.

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Frequently asked questions

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Gregory Fanelli?

Gregory Fanelli is registered in NPPES with the primary taxonomy of Orthopaedic Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-24.