Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Daniel E Green, MD

Internal Medicine Physician in Fairfield, CA · enumerated 2006 · practices at Sutter Regional Medical Foundation.

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

National Provider Identifier

1386731602

Verified

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Registry record

Entity type Individual (Type 1)

Name Daniel E Green

Credential MD

Sex Male

Practice address 1234 Empire St, Fairfield, CA, 94533

Phone (707) 426-3911

Fax (707) 434-2043

Enumeration date Oct 6, 2006

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G36444 (CA) Primary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License G36444 (CA) Secondary

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

Other identifiers

Identifier	Type	State	Issuer
00G364440	Medicaid	CA	-

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

What specialty is Daniel Green?

Daniel Green is registered in NPPES with the primary taxonomy of Internal Medicine 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.

Other providers at this practice address

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Henry Collins Pediatrics Physician · Fairfield, CA NPI 1215024591 Mark Ellis Infectious Disease Physician · Fairfield, CA NPI 1144317462 Frederick Blair Obstetrics & Gynecology Physician · Fairfield, CA NPI 1386731768 Malalai Mojaddidi Optometrist · Fairfield, CA NPI 1427146273 Michael Moshier Family Medicine Physician · Fairfield, CA NPI 1558459313 Sutter Regional Medical Foundation Mammography Clinic/Center · Fairfield, CA NPI 1255429429 Mark Sullivan Family Medicine Physician · Fairfield, CA NPI 1871673723 Mark Susskind Urology Physician · Fairfield, CA NPI 1003996950

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.