Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Al-Sayed MD Inc

Q: What is the NPI number for Al-Sayed MD Inc?

The NPI for Al-Sayed MD Inc is 1265016687, a Type 2 (organization) record in the CMS NPPES registry.

Endocrinology, Diabetes & Metabolism Physician in Diamond Bar, CA · enumerated 2021 · authorized official Marlise Negrette, Medical Biller.

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

National Provider Identifier

1265016687

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Registry record

Entity type Organization (Type 2)

Legal business name Al-Sayed MD Inc

Practice address 1375 Rolling Knoll Rd, Diamond Bar, CA, 91765

Phone (989) 980-8779

Enumeration date May 11, 2021

Last updated in NPPES May 11, 2021

Taxonomy & classification

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Marlise Negrette

Title Medical Biller

Phone (909) 793-5511

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

Who is the authorized official for Al-Sayed MD Inc?

NPPES lists Marlise Negrette (Medical Biller) as the authorized official for this organization.

What is the NPI number for Al-Sayed MD Inc?

The NPI for Al-Sayed MD Inc is 1265016687, a Type 2 (organization) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-05-11.