Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Constantine G Peters, D.O.

Hospitalist Physician in Palos Heights, IL · enumerated 2006.

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

National Provider Identifier

1114937562

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Constantine G Peters

Credential D.O.

Sex Male

Practice address 12251 S 80th Ave, Palos Heights, IL, 60463

Phone (708) 923-4000

Fax (708) 923-5859

Enumeration date Aug 8, 2006

Last updated in NPPES Jan 13, 2026

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 036107020 (IL) Primary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 036107020 (IL) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License OS17162 (FL) Secondary

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
110688200	Medicaid	FL	-
036107020	Medicaid	IL	-

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 Constantine Peters's NPI record?

Cross-check NPI 1114937562 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1114937562 active?

Yes, as of the latest NPPES snapshot, NPI 1114937562 is active (record last updated 2026-01-13).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-01-13.