NPI Portal NPI Lookup & Verification

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

James L Greco, M.D.

Sports Medicine (Neuromusculoskeletal Medicine) Physician in Berwyn, IL · enumerated 2005 · practices at Adventist Health Partners, Inc.

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

National Provider Identifier

1043205248

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Registry record

Entity type Individual (Type 1)
Name James L Greco
Credential M.D.
Sex Male
Practice address Berwyn, IL, 60402
Phone (708) 484-6680
Fax (708) 484-6230
Enumeration date Sep 14, 2005
Last updated in NPPES Feb 5, 2010

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

Taxonomy & licenses

204C00000X Sports Medicine (Neuromusculoskeletal Medicine) Physician Allopathic & Osteopathic Physicians · License 036-056023 (IL) Primary
204D00000X Neuromusculoskeletal Medicine & OMM Physician Allopathic & Osteopathic Physicians · License 036-056023 (IL) 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.

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Frequently asked questions

What specialty is James Greco?
James Greco is registered in NPPES with the primary taxonomy of Sports Medicine (Neuromusculoskeletal 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-05.