Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Harold Mars, MD, Inc.

Neurology Physician in Beachwood, OH · enumerated 2007 · authorized official Harold Mars, President.

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

National Provider Identifier

1720205677

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Registry record

Entity type Organization (Type 2)

Legal business name Harold Mars, MD, Inc.

Practice address 3609 Park East Dr, Suite 517, Beachwood, OH, 44122

Phone (216) 831-6085

Fax (216) 831-6172

Enumeration date Apr 20, 2007

Last updated in NPPES Jan 14, 2010

Taxonomy & classification

2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 35 032974 (OH) Primary

Authorized official

Name Harold Mars

Title President

Phone (216) 831-6085

Other identifiers

Identifier	Type	State	Issuer
0835583	Medicaid	OH	-

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.

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Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2010-01-14. Verify at npiregistry.cms.hhs.gov.

Where is Harold Mars, MD, Inc. located?

The practice location on file with NPPES is in Beachwood, OH.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-14.