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James C Ziegler, M.D.

Radiation Oncology Physician in Lawton, OK · enumerated 2006 · practices at Cancer Centers of Southwest Oklahoma, LLC.

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

National Provider Identifier

1689692725

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Registry record

Entity type Individual (Type 1)
Name James C Ziegler
Credential M.D.
Sex Male
Practice address 104 Nw 31st St, Lawton, OK, 73505
Phone (580) 536-2121
Fax (580) 536-2150
Enumeration date Jul 17, 2006
Last updated in NPPES Feb 1, 2012

Taxonomy & licenses

2085R0001X Radiation Oncology Physician Allopathic & Osteopathic Physicians · License 18667 (OK) 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
100008450A Medicaid OK -

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 James Ziegler?
James Ziegler is registered in NPPES with the primary taxonomy of Radiation Oncology 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 2012-02-01.