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

Ms. Sandra L Martin, NP

Nurse Practitioner in South Bend, IN · enumerated 2005.

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

National Provider Identifier

1851373898

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Sandra L Martin

Credential NP

Sex Female

Practice address South Bend, IN, 46601

Phone (574) 232-7227

Fax (574) 232-2064

Enumeration date Nov 16, 2005

Last updated in NPPES Mar 30, 2021

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

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 71001851A (IN) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
000000742868	Other	IN	BCBS
200303930	Medicaid	IN	-
352145705	Other	IN	TAX ID

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

How do I verify Sandra Martin's NPI record?

Cross-check NPI 1851373898 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1851373898 active?

Yes, as of the latest NPPES snapshot, NPI 1851373898 is active (record last updated 2021-03-30).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-30.