Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary H Duff, MD

Obstetrics & Gynecology Physician in Springfield, MO · enumerated 2006.

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

National Provider Identifier

1952410862

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Registry record

Entity type Individual (Type 1)

Name Mary H Duff

Credential MD

Sex Female

Practice address 1000 E Primrose St, Suite 400, Springfield, MO, 65807

Phone (417) 269-7900

Fax (417) 269-7990

Enumeration date Aug 30, 2006

Last updated in NPPES Jul 3, 2012

Taxonomy & licenses

207V00000X Obstetrics & Gynecology Physician Allopathic & Osteopathic Physicians · License 04-29559 (KS) 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
432500	Other	-	FIRSTGUARD
31357012	Other	MO	BCBS KANSAS CITY
100419950A	Medicaid	KS	-
205842107	Medicaid	MO	-
160056822	Other	-	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

How do I verify Mary Duff's NPI record?

Cross-check NPI 1952410862 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1952410862 active?

Yes, as of the latest NPPES snapshot, NPI 1952410862 is active (record last updated 2012-07-03).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-07-03.