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

Dr. James Lawrence Fleckenstein, M.D.

Diagnostic Radiology Physician in Tulsa, OK · enumerated 2006.

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

National Provider Identifier

1245280312

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Registry record

Entity type Individual (Type 1)

Name Dr. James Lawrence Fleckenstein

Credential M.D.

Sex Male

Practice address Tulsa, OK, 74137

Phone (918) 523-7226

Fax (918) 518-5136

Enumeration date May 11, 2006

Last updated in NPPES Sep 9, 2011

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

Taxonomy & licenses

2085N0700X Neuroradiology Physician Allopathic & Osteopathic Physicians · License 23288 (OK) Secondary

2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 23288 (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
200014870A	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for James Fleckenstein?

The National Provider Identifier (NPI) for James Fleckenstein is 1245280312, a Type 1 (individual) record in the CMS NPPES registry.

Where does James Fleckenstein practice?

The practice location on file with NPPES is in Tulsa, OK. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-09.