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

Dr. Mary Alice Schaefer, D.O.

Pediatrics Physician in Meridian, MS · enumerated 2007.

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

National Provider Identifier

1154535375

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Registry record

Entity type Individual (Type 1)

Name Dr. Mary Alice Schaefer

Credential D.O.

Sex Female

Practice address Meridian, MS, 39305

Phone (256) 509-0590

Enumeration date May 9, 2007

Last updated in NPPES May 21, 2019

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

Taxonomy & licenses

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License DO451 (AL) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 340070405 (OH) Secondary

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License MS19178 (MS) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
1154535375	Other	MS	NPI
06389899	Medicaid	MS	-

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

Where does Mary Schaefer practice?

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

What is the NPI number for Mary Schaefer?

The National Provider Identifier (NPI) for Mary Schaefer is 1154535375, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-21.