NPI Portal NPI Lookup & Verification

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

John C Sarantopoulos, DO

Physical Medicine & Rehabilitation Physician in Roselle, IL · enumerated 2006 · practices at Advanced Physical Medicine Associates Sc.

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

National Provider Identifier

1639185275

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Registry record

Entity type Individual (Type 1)
Name John C Sarantopoulos
Credential DO
Sex Male
Practice address Roselle, IL, 60172
Phone (630) 924-1450
Fax (630) 924-1459
Enumeration date Aug 1, 2006
Last updated in NPPES Feb 26, 2010

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

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 036094371 (IL) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
364374397 Other IL TAX ID
6206500001 Other IL MEDICARE DME NUMBER

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

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.
What specialty is John Sarantopoulos?
John Sarantopoulos is registered in NPPES with the primary taxonomy of Physical Medicine & Rehabilitation Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-26.