Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Eric Player, DO
Surgery Physician in Rockford, IL · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1285965905
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Registry record
Entity type Individual (Type 1)
Name John Eric Player
Credential DO
Sex Male
Practice address 5668 E State St, Suite 1000, Rockford, IL, 61108
Phone (815) 397-7900
Fax (815) 397-7919
Enumeration date Jan 20, 2010
Last updated in NPPES Jun 24, 2013
Taxonomy & licenses
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 |
|---|---|---|---|
| 61001 | Other | WI | DEAN HEALTH INSURANCE |
| 100008500 | Medicaid | WI | - |
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.
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 Player?
John Player is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Mark Hastings Orthopaedic Surgery Physician · Rockford, IL NPI 1477553659 Andreas Fischer Orthopaedic Surgery Physician · Rockford, IL NPI 1235139452 David Cable Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Rockford, IL NPI 1033183728 Leslie Edgcomb Vascular Surgery Physician · Rockford, IL NPI 1629014022 Lawrence Prabhakar Colon & Rectal Surgery Physician · Rockford, IL NPI 1467482828 James Girardy Surgery Physician · Rockford, IL NPI 1992738819 Jeffrey Barteau Surgery Physician · Rockford, IL NPI 1053344903 Mary Keller Surgery Physician · Rockford, IL NPI 1275567703
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-06-24.