Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Eric L. Marderstein, MD

Surgery Physician in Cleveland, OH · enumerated 2007.

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

National Provider Identifier

1033239199

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Registry record

Entity type Individual (Type 1)

Name Eric L. Marderstein

Credential MD

Sex Male

Practice address 11100 Euclid Ave, Cleveland, OH, 44106

Phone (440) 684-5865

Fax (440) 684-5952

Enumeration date Mar 30, 2007

Last updated in NPPES Jun 30, 2011

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 35-088879 (OH) 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
2730398	Medicaid	OH	-
000000221050	Other	OH	UNISON
9779061	Other	-	AETNA
000000524529	Other	-	ANTHEM
414685	Other	OH	WELLCARE
P00397851	Other	OH	RAILROAD MEDICARE
750895	Other	OH	BUCKEYE

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

Is NPI 1033239199 active?

Yes, as of the latest NPPES snapshot, NPI 1033239199 is active (record last updated 2011-06-30).

How do I verify Eric Marderstein's NPI record?

Cross-check NPI 1033239199 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-06-30.