Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Lewis Scot Lehman, MD

Pulmonary Disease Physician in Mill Valley, CA · enumerated 2011.

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

National Provider Identifier

1255616314

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Registry record

Entity type Individual (Type 1)

Name Dr. Lewis Scot Lehman

Credential MD

Sex Male

Practice address 99 Greenwood Way, Mill Valley, CA, 94941

Phone (415) 381-1489

Enumeration date Oct 19, 2011

Last updated in NPPES Oct 20, 2011

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License C39907 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Lewis Lehman?

Lewis Lehman is registered in NPPES with the primary taxonomy of Pulmonary Disease 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-20.