Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Louise Grotzinger, M.D.

Gynecology Physician in Lemoyne, PA · enumerated 2006.

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

National Provider Identifier

1902886922

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Registry record

Entity type Individual (Type 1)

Name Margaret Louise Grotzinger

Credential M.D.

Sex Female

Practice address 1 Lemoyne Sq, Suite 201, Lemoyne, PA, 17043

Phone (717) 737-4511

Fax (717) 909-6659

Enumeration date Jan 17, 2006

Last updated in NPPES Aug 13, 2007

Taxonomy & licenses

207VG0400X Gynecology Physician Allopathic & Osteopathic Physicians · License MD038428E (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
483679	Other	PA	AETNA HMO PROVIDER NUMBER
560754	Other	PA	HIGHMARK BLUE SHIELD
4579199	Other	PA	AETNA PPO PROVIDER NUMBER
50026625	Other	PA	CAPITAL BLUE CROSS

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 Margaret Grotzinger's NPI record?

Cross-check NPI 1902886922 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1902886922 active?

Yes, as of the latest NPPES snapshot, NPI 1902886922 is active (record last updated 2007-08-13).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-08-13.