NPI Portal NPI Lookup & Verification

Gary L. Bluestone, DO

Gary L. Bluestone is a Infectious Disease Physician provider (Internal Medicine) practicing in Baldwin Park, CA, registered in the NPPES registry with NPI 1639227614 since 2007. The credential DO stands for Doctor of Osteopathic Medicine.

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NPI 1639227614
Entity type Individual (Type 1)
Name Gary L. Bluestone
Credential DO
Sex Male
Practice address 1011 BALDWIN PARK BLVD, Baldwin Park, CA, 91706
Phone 6268511011
Enumeration date 2007-01-08
Last updated in NPPES 2021-12-02

Taxonomy & licenses

Taxonomy code Specialty Primary License State
207RI0200X Infectious Disease Physician Primary 20A6516 CA

DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Copy-ready billing details
Provider: Gary Bluestone, DO
NPI: 1639227614
Taxonomy: 207RI0200X (Infectious Disease Physician)
Address: 1011 BALDWIN PARK BLVD, Baldwin Park, CA, 91706

Other providers at this practice address

NPI Name Type Specialty Location
1225021041 Heng Long Chhay Individual Family Medicine Physician Baldwin Park, CA
1689656340 Armond Khachatourians Individual Orthopaedic Surgery Physician Baldwin Park, CA
1104897495 Steven Park Individual Internal Medicine Physician Baldwin Park, CA
1962477299 Vicki Quan Individual Internal Medicine Physician Baldwin Park, CA
1043286040 Michelle Britt Individual Ophthalmology Physician Baldwin Park, CA
1831158104 Andrea Backes Individual Emergency Medicine Physician Baldwin Park, CA
1508825944 Ying-Ting Yeh Individual Family Medicine Physician Baldwin Park, CA
1629025085 Jennifer Graham Individual Orthopaedic Surgery Physician Baldwin Park, CA

Verify this record

Cross-check NPI 1639227614 against the authoritative CMS record: view Gary L. Bluestone 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

What specialty is Gary Bluestone?
Gary Bluestone is registered in NPPES with the primary taxonomy of Infectious 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 2026-07-11. Provider record last updated 2021-12-02.