Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert A. Oppenheim, M.D.

Ophthalmology Physician in Plainfield, IL · enumerated 2005.

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

National Provider Identifier

1972599520

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Robert A. Oppenheim

Credential M.D.

Sex Male

Practice address 24600 W 127th St, Bldg. B, Suite 120, Plainfield, IL, 60585

Phone (815) 609-6989

Enumeration date Sep 20, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 Robert Oppenheim's NPI record?

Cross-check NPI 1972599520 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1972599520 active?

Yes, as of the latest NPPES snapshot, NPI 1972599520 is active (record last updated 2007-07-08).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.