Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nagulapalli S Rao, MD
Specialist in Oak Park, IL · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1508861691
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Registry record
Entity type Individual (Type 1)
Name Nagulapalli S Rao
Credential MD
Sex Male
Practice address 1 Erie Ct, Ste 7160, Oak Park, IL, 60302
Phone (708) 386-4487
Fax (708) 386-4459
Enumeration date Jun 16, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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 |
|---|---|---|---|
| 21604882 | Other | IL | BLUE CROSS BLUE SHIELD |
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 NPI 1508861691 active?
Yes, as of the latest NPPES snapshot, NPI 1508861691 is active (record last updated 2007-07-08).
How do I verify Nagulapalli Rao's NPI record?
Cross-check NPI 1508861691 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → David Springer Ophthalmology Physician · Oak Park, IL NPI 1003811787 Kathleen Dorgan Nephrology Physician · Oak Park, IL NPI 1750383527 Malcolm Deam Infectious Disease Physician · Oak Park, IL NPI 1598750549 John Jacobsen Neurology Physician · Oak Park, IL NPI 1477548477 Vanessa Klugman Endocrinology, Diabetes & Metabolism Physician · Oak Park, IL NPI 1639169972 Jane Bahk Ophthalmology Physician · Oak Park, IL NPI 1639158314 Michael Barnish Athletic Trainer · Oak Park, IL NPI 1558335489 Kamran Heydarpour Gastroenterology Physician · Oak Park, IL NPI 1093764193
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.