Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Ada Ping Lee, M.D.

Endocrinology, Diabetes & Metabolism Physician in San Francisco, CA · enumerated 2009.

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

National Provider Identifier

1558599514

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Registry record

Entity type Individual (Type 1)

Name Dr. Ada Ping Lee

Credential M.D.

Sex Female

Practice address 400 Parnassus Ave, Ste 550, San Francisco, CA, 94143

Phone (415) 353-8946

Fax (415) 353-2337

Enumeration date Jun 29, 2009

Last updated in NPPES Jun 7, 2012

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License ML 60093665 (WA) Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License A119088 (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

How do I verify Ada Lee's NPI record?

Cross-check NPI 1558599514 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1558599514 active?

Yes, as of the latest NPPES snapshot, NPI 1558599514 is active (record last updated 2012-06-07).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-07.