NPI Portal NPI Lookup & Verification

Michael Louis Eisenberg, MD

Michael Louis Eisenberg is a Urology Physician provider (Urology) practicing in Stanford, CA, registered in the NPPES registry with NPI 1508999749 since 2007. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1508999749
Entity type Individual (Type 1)
Name Michael Louis Eisenberg
Credential MD
Sex Male
Practice address Stanford, CA, 94305
Phone 6507234537
Enumeration date 2007-03-14
Last updated in NPPES 2024-03-13

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Secondary A93272 CA
208800000X Urology Physician Primary A93272 CA

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

Copy-ready billing details
Provider: Michael Eisenberg, MD
NPI: 1508999749
Taxonomy: 208800000X (Urology Physician)
Address: Stanford, CA, 94305

Other providers at this practice address

NPI Name Type Specialty Location
1982600342 Gregory Welsh Individual Hospitalist Physician Stanford, CA
1841296779 Theresa Mallick-Searle Individual Nurse Practitioner Stanford, CA
1629074364 James Rhee Individual Pain Medicine (Physical Medicine & Rehabilitation) Physician Stanford, CA
1497752802 Sankar Niranjan Individual Nephrology Physician Stanford, CA
1144227182 Neha Shah Individual Rheumatology Physician Stanford, CA
1750389250 Hyma Vempaty Individual Hematology (Internal Medicine) Physician Stanford, CA
1902805559 Maria Mangini Individual Family Nurse Practitioner Stanford, CA
1578563383 Catherine Salem Individual Radiation Oncology Physician Stanford, CA

Verify this record

Cross-check NPI 1508999749 against the authoritative CMS record: view Michael Louis Eisenberg on the official NPPES registry .

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 or validate an NPI number.

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 Michael Eisenberg?
Michael Eisenberg is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-03-13.