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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Mark D Lehman, MD

Dermatology Physician in Tulsa, OK · enumerated 2005 · practices at Tulsa Dermatology Clinic Inc.

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

National Provider Identifier

1932195815

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark D Lehman
Credential MD
Sex Male
Practice address 2121 E 21st St, Tulsa, OK, 74114
Fax (918) 749-8712
Enumeration date Sep 26, 2005
Last updated in NPPES Apr 13, 2026

Taxonomy & licenses

207N00000X Dermatology Physician Allopathic & Osteopathic Physicians · License 19733 (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
070009001 Other - RAILROAD MEDICARE
876756 Other - AETNA HMO
5864179 Other - AETNA PPO
100157070A Medicaid OK -
19733 Other OK STATE MEDICAL LICENSE NUM

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 Mark Lehman?
Mark Lehman is registered in NPPES with the primary taxonomy of Dermatology 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 2026-04-13.