Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Douglas Dizon Marania, M.D.

Family Medicine Physician in Stanford, CA · enumerated 2010.

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

National Provider Identifier

1063727907

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Registry record

Entity type Individual (Type 1)

Name Dr. Douglas Dizon Marania

Credential M.D.

Sex Male

Practice address 300 Pasteur Dr, Stanford, CA, 94305

Phone (650) 723-4000

Enumeration date Aug 16, 2010

Last updated in NPPES Feb 22, 2016

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License A122167 (CA) Primary

207QS0010X Sports Medicine (Family Medicine) Physician Allopathic & Osteopathic Physicians · License A122167 (CA) Secondary

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

Is NPI 1063727907 active?

Yes, as of the latest NPPES snapshot, NPI 1063727907 is active (record last updated 2016-02-22).

How do I verify Douglas Marania's NPI record?

Cross-check NPI 1063727907 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-02-22.