Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jonathan A Mandelbaum, MD

Surgery Physician in Indianapolis, IN · enumerated 2006.

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

National Provider Identifier

1437123437

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Registry record

Entity type Individual (Type 1)

Name Jonathan A Mandelbaum

Credential MD

Sex Male

Practice address 5255 E Stop 11 Rd Ste 450, Indianapolis, IN, 46237

Phone (317) 865-4800

Fax (317) 865-4806

Enumeration date Feb 15, 2006

Last updated in NPPES Feb 27, 2023

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 01033791A (IN) 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
100129080A	Medicaid	IN	-
100003568	Other	IN	RR MEDICARE

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Jonathan Mandelbaum?

Jonathan Mandelbaum is registered in NPPES with the primary taxonomy of Surgery Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-02-27.