NPI Portal NPI Lookup & Verification

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

Dr. Marc A. Abrams, M.D., PH.D.

Specialist in Cleveland, OH · enumerated 2005.

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

National Provider Identifier

1598763393

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Registry record

Entity type Individual (Type 1)
Name Dr. Marc A. Abrams
Credential M.D., PH.D.
Sex Male
Practice address Cleveland, OH, 44115
Phone (216) 937-2020
Fax (216) 937-2145
Enumeration date Jul 14, 2005
Last updated in NPPES May 18, 2010

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 35-046932 (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
0597680 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

Where does Marc Abrams practice?
The practice location on file with NPPES is in Cleveland, OH. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Marc Abrams?
The National Provider Identifier (NPI) for Marc Abrams is 1598763393, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-05-18.