Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Antonio E Alfonso, M.D.

Surgery Physician in Brooklyn, NY · enumerated 2005.

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

National Provider Identifier

1598760670

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Registry record

Entity type Individual (Type 1)

Name Dr. Antonio E Alfonso

Credential M.D.

Sex Male

Practice address Brooklyn, NY, 11201

Phone (718) 875-3244

Fax (718) 780-1037

Enumeration date Jun 16, 2005

Last updated in NPPES Jul 6, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 117277 (NY) Primary

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
4466282	Other	NY	AETNA
0077128	Other	NY	GHI
644021	Other	NY	EMPIRE BC & BS
00217047	Medicaid	NY	-
KS 359	Other	NY	OXFORD

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 Antonio Alfonso's NPI record?

Cross-check NPI 1598760670 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1598760670 active?

Yes, as of the latest NPPES snapshot, NPI 1598760670 is active (record last updated 2010-07-06).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-07-06.