Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John Davis, M.D.

Q: What is the NPI number for John Davis?

The National Provider Identifier (NPI) for John Davis is 1154363372, a Type 1 (individual) record in the CMS NPPES registry.

Adolescent Medicine (Internal Medicine) Physician in Oak Brook, IL · enumerated 2006.

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

National Provider Identifier

1154363372

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. John Davis

Credential M.D.

Sex Male

Practice address 900 Jorie Blvd, Suite 186, Oak Brook, IL, 60523

Phone (630) 954-6700

Fax (630) 954-1555

Enumeration date Jun 12, 2006

Last updated in NPPES Nov 16, 2022

Taxonomy & licenses

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 01073739A (IN) Secondary

207RA0000X Adolescent Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 036109720 (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
036109720	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

What is the NPI number for John Davis?

The National Provider Identifier (NPI) for John Davis is 1154363372, a Type 1 (individual) record in the CMS NPPES registry.

Where does John Davis practice?

The practice location on file with NPPES is in Oak Brook, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Antranik Poladian Neonatal-Perinatal Medicine Physician · Oak Brook, IL NPI 1447251160 Midwest Neoped Associates Ltd Specialist · Oak Brook, IL NPI 1396792180 Suman Narumanchi Internal Medicine Physician · Oak Brook, IL NPI 1962449439 Marcia Dawson Neonatal-Perinatal Medicine Physician · Oak Brook, IL NPI 1689611147 Antonio Fiumara Neonatal-Perinatal Medicine Physician · Oak Brook, IL NPI 1821035395 Helen Kusi Neonatal-Perinatal Medicine Physician · Oak Brook, IL NPI 1558308908 Emelie Medalle Pediatrics Physician · Oak Brook, IL NPI 1184661530 Pablo Arnecilla Pediatrics Physician · Oak Brook, IL NPI 1841237401

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-16.