Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregg L Massanelli, M.D.

Specialist in El Dorado, AR · enumerated 2005.

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

National Provider Identifier

1538156492

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Registry record

Entity type Individual (Type 1)

Name Gregg L Massanelli

Credential M.D.

Sex Male

Practice address 2700 Vine St, El Dorado, AR, 71730

Phone (870) 862-1144

Fax (870) 864-0782

Enumeration date Oct 5, 2005

Last updated in NPPES Nov 26, 2008

Taxonomy & licenses

174400000X Specialist Other Service Providers · License C8449 (AR) 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
0424120002	Other	AR	DMEPOS
132799001	Medicaid	AR	-
200042894	Other	AR	UNITED /RAILROAD MEDICARE
17802000000	Other	AR	QUALCHOICE

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

What is the NPI number for Gregg Massanelli?

The National Provider Identifier (NPI) for Gregg Massanelli is 1538156492, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gregg Massanelli practice?

The practice location on file with NPPES is in El Dorado, AR. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-26.