Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sunil Cherian John, MD

Rheumatology Physician in Orland Park, IL · enumerated 2006 · practices at Midwest Physician Group Ltd.

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

National Provider Identifier

1427154665

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Registry record

Entity type Individual (Type 1)

Name Dr. Sunil Cherian John

Credential MD

Sex Male

Practice address 9550 W 167th St, Amg-Orland Park, Orland Park, IL, 60467

Phone (708) 873-4500

Fax (708) 873-4505

Enumeration date Sep 15, 2006

Last updated in NPPES Mar 25, 2025

Taxonomy & licenses

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 12792 (NH) Secondary

207RR0500X Rheumatology Physician Allopathic & Osteopathic Physicians · License 036-121669 (IL) 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
30205465	Medicaid	NH	-

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 Sunil John?

Sunil John is registered in NPPES with the primary taxonomy of Rheumatology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Mohammed Kazi Endocrinology, Diabetes & Metabolism Physician · Orland Park, IL NPI 1831136654 Cassandra Lickert Allergy & Immunology Physician · Orland Park, IL NPI 1104939420 Lisa Montelpasse Family Medicine Physician · Orland Park, IL NPI 1487769436 Tiffany Longo Physician Assistant · Orland Park, IL NPI 1528166337 Edward Mahoney Clinical Psychologist · Orland Park, IL NPI 1568558237 Robert Tomchuck Radiation Oncology Physician · Orland Park, IL NPI 1669552584 Catherine Macyko Pediatrics Physician · Orland Park, IL NPI 1992886295 Donna Williams Family Medicine Physician · Orland Park, IL NPI 1447321849

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-25.