Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ronald J Glas, MD

Family Medicine Physician in Naperville, IL · enumerated 2005 · practices at Martin Avenue Pharmacy Inc.

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

National Provider Identifier

1720075484

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Registry record

Entity type Individual (Type 1)

Name Ronald J Glas

Credential MD

Sex Male

Practice address 1247 Rickert Dr, Ste 201, Naperville, IL, 60540

Phone (630) 357-7979

Fax (630) 357-1047

Enumeration date Sep 28, 2005

Last updated in NPPES Feb 23, 2021

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 036098149 (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
036098149 1	Medicaid	IL	-
2220936	Other	IL	BCBS

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 Ronald Glas's NPI record?

Cross-check NPI 1720075484 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1720075484 active?

Yes, as of the latest NPPES snapshot, NPI 1720075484 is active (record last updated 2021-02-23).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-23.