Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sandra L Gadson, MD

Nephrology Physician in Merrillville, IN · enumerated 2005.

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

National Provider Identifier

1841297348

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Registry record

Entity type Individual (Type 1)

Name Sandra L Gadson

Credential MD

Sex Female

Practice address 90 W 86th Ave, Merrillville, IN, 46410

Phone (219) 791-1555

Fax (219) 791-1560

Enumeration date Jun 30, 2005

Last updated in NPPES May 31, 2022

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 036058441 (IL) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 10129625A (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
090001077	Other	IL	BCBS ILLINOIS
000000095599	Other	IN	ANTHEM PROVIDER NUMBER
100360450B	Medicaid	IN	-

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

What is the NPI number for Sandra Gadson?

The National Provider Identifier (NPI) for Sandra Gadson is 1841297348, a Type 1 (individual) record in the CMS NPPES registry.

Where does Sandra Gadson practice?

The practice location on file with NPPES is in Merrillville, IN. 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 2022-05-31.