Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Nickolas Katsoulakis, M.D.

Ophthalmology Physician in Palos Heights, IL · enumerated 2007.

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

National Provider Identifier

1902023088

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Nickolas Katsoulakis

Credential M.D.

Sex Male

Practice address Palos Heights, IL, 60463

Phone (708) 361-7800

Fax (708) 361-8737

Enumeration date Apr 19, 2007

Last updated in NPPES Feb 18, 2010

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License LP00389 (RI) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 247724 (NY) Secondary

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 036123759 (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
P00673435	Other	NY	PALMETTO
650A31	Other	NY	EMPIRE 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Nickolas Katsoulakis's NPI record?

Cross-check NPI 1902023088 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1902023088 active?

Yes, as of the latest NPPES snapshot, NPI 1902023088 is active (record last updated 2010-02-18).

Other providers at this practice address

Browse all →

Associated Urological Specialists LLC Urology Physician · Palos Heights, IL NPI 1831231562 Palos Surgicenter, LLC Ambulatory Surgical Clinic/Center · Palos Heights, IL NPI 1942335971 Haley Mascitti Optometrist · Palos Heights, IL NPI 1225393507 Michael Beyer Ophthalmology Physician · Palos Heights, IL NPI 1144750399

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-02-18.