Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Gregory Alan Tocks, D.O.

Adult Reconstructive Orthopaedic Surgery Physician in Lancaster, PA · enumerated 2010 · practices at Orthopedic Assoc of Lancaster Ltd.

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

National Provider Identifier

1063726446

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Registry record

Entity type Individual (Type 1)

Name Dr. Gregory Alan Tocks

Credential D.O.

Sex Male

Practice address Lancaster, PA, 17601

Phone (717) 299-4871

Fax (717) 391-2494

Enumeration date Jul 28, 2010

Last updated in NPPES Feb 15, 2021

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License OS018102 (PA) Secondary

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License (0116027757) (VA) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care · License 0116027757 (VA) Secondary

207XS0114X Adult Reconstructive Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License OS018102 (PA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

What specialty is Gregory Tocks?

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

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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-15.