NPI Portal NPI Lookup & Verification

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

Muhammad A Sheikh, M.D

Family Medicine Physician in Napa, CA · enumerated 2007.

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

National Provider Identifier

1235252859

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Muhammad A Sheikh
Credential M.D
Sex Male
Practice address Napa, CA, 94558
Phone (707) 703-4863
Fax (707) 257-4116
Enumeration date Apr 9, 2007
Last updated in NPPES Feb 9, 2026

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

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License C198812 (CA) Primary
207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 59195 (GA) Secondary
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

Is NPI 1235252859 active?
Yes, as of the latest NPPES snapshot, NPI 1235252859 is active (record last updated 2026-02-09).
How do I verify Muhammad Sheikh's NPI record?
Cross-check NPI 1235252859 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-02-09.