Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Marilyn Adele Knaub, M.D.

Family Medicine Physician in Oxford, PA · enumerated 2006.

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

National Provider Identifier

1043253271

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Registry record

Entity type Individual (Type 1)

Name Marilyn Adele Knaub

Credential M.D.

Sex Female

Practice address 29 N 3rd St, Oxford, PA, 19363

Phone (610) 932-6386

Fax (610) 932-6385

Enumeration date Jun 14, 2006

Last updated in NPPES Feb 15, 2022

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD023876E (PA) 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
P002614	Other	PA	GATEWAY HEALTH PLAN
1092573	Other	PA	AMERIHEALTH MERCY HEALTH
0887614	Medicaid	PA	-
000000118667	Other	PA	UNISON HEALTH PLAN
000198331	Other	PA	HIGHMARK BLUE SHIELD
0032101000	Other	PA	AMERIHEALTH 65

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

Is NPI 1043253271 active?

Yes, as of the latest NPPES snapshot, NPI 1043253271 is active (record last updated 2022-02-15).

How do I verify Marilyn Knaub's NPI record?

Cross-check NPI 1043253271 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-02-15.