Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Joseph Greco, M.D.

Q: What is the NPI number for John Greco?

The National Provider Identifier (NPI) for John Greco is 1659352375, a Type 1 (individual) record in the CMS NPPES registry.

Orthopaedic Surgery Physician in Salisbury, MD · enumerated 2005 · practices at Peninsula Orthopaedic Assoc PA.

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

National Provider Identifier

1659352375

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Registry record

Entity type Individual (Type 1)

Name Dr. John Joseph Greco

Credential M.D.

Sex Male

Practice address 1675 Woodbrooke Drive, Salisbury, MD, 21804

Phone (410) 749-4154

Fax (410) 860-9583

Enumeration date Nov 9, 2005

Last updated in NPPES Jun 6, 2008

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License D47674 (MD) 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
0000647801	Medicaid	DE	-
0003W409	Other	-	BCBS PROD FEP BLUE CHOICE
200022317	Other	-	RAILROAD MEDICARE
091051	Other	VA	TRIGON BCBS
358971400	Medicaid	MD	-
221921800	Other	-	US DEPARTMENT OF LABOR
229296	Other	MD	MDIPA OPTIMUM CHOICE
006403247	Medicaid	VA	-
1002198	Other	-	AETNA
910711	Other	-	FREESTATE DELMARVA HEALTH
327279	Other	-	PRIME HEALTH
53484401H524PE	Other	-	BCBS TRAD PRODUCTS
66G44	Other	-	EMPIRE BCBS

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

Where does John Greco practice?

The practice location on file with NPPES is in Salisbury, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for John Greco?

The National Provider Identifier (NPI) for John Greco is 1659352375, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-06.