Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Michael J Lazar Jr., MD
Urology Physician in Santa Rosa, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1376505180
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Michael J Lazar Jr.
Credential MD
Sex Male
Practice address 1140 Sonoma Ave, Ste 1a, Santa Rosa, CA, 95405
Phone (707) 546-5553
Fax (707) 546-0725
Enumeration date Apr 5, 2006
Last updated in NPPES Feb 7, 2012
Taxonomy & licenses
2088P0231X Pediatric Urology Physician Allopathic & Osteopathic Physicians · License C40958 (CA) Secondary
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 |
|---|---|---|---|
| P00638732 | Other | - | RAILROAD MEDICARE |
| 1376505180 | Medicaid | CA | - |
| 00C409580 | Other | CA | BS OF CALIFORNIA |
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.
Frequently asked questions
What is the NPI number for Michael Lazar?
The National Provider Identifier (NPI) for Michael Lazar is 1376505180, a Type 1 (individual) record in the CMS NPPES registry.
Where does Michael Lazar practice?
The practice location on file with NPPES is in Santa Rosa, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Natasha Kahl Obstetrics & Gynecology Physician · Santa Rosa, CA NPI 1942252911 Michael J. Lazar, Jr., M.D., Professional Medical Corporation Urology Physician · Santa Rosa, CA NPI 1912910811 Jeannie L Pflum Do Inc Obstetrics & Gynecology Physician · Santa Rosa, CA NPI 1992875405 Sutter Medical Group of the Redwoods Obstetrics & Gynecology Physician · Santa Rosa, CA NPI 1740497072 Sutter Medical Group of the Redwoods Pediatrics Physician · Santa Rosa, CA NPI 1649466004 Karen Clark Nurse Practitioner · Santa Rosa, CA NPI 1508049594 Northern California Medical Assoc Inc Urology Physician · Santa Rosa, CA NPI 1588829691 Planned Parenthood Shasta Diablo, Inc. Community Health Clinic/Center · Santa Rosa, CA NPI 1659671600
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-07.