Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jacqueline N Mast, CRNA

Certified Registered Nurse Anesthetist in Lancaster, PA · enumerated 2006.

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

National Provider Identifier

1003885757

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Registry record

Entity type Individual (Type 1)

Name Jacqueline N Mast

Credential CRNA

Sex Female

Practice address 555 N Duke St, Lancaster, PA, 17602

Phone (717) 544-5511

Enumeration date Mar 15, 2006

Last updated in NPPES Mar 30, 2011

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License RN350779L (PA) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA credential

Other identifiers

Identifier	Type	State	Issuer
001544526	Other	PA	HIGHMARK
90996	Other	PA	GEISINGER
P00054070	Other	PA	RR MEDICARE
50055746	Other	PA	KEYSTONE HEALTH PLAN CENTRAL
1147552	Other	PA	AETNA-HMO
7252729	Other	PA	AETNA-NON HMO
2228343000	Other	PA	INDEPENDENCE BLUE CROSS
50055746	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1003885757 active?

Yes, as of the latest NPPES snapshot, NPI 1003885757 is active (record last updated 2011-03-30).

How do I verify Jacqueline Mast's NPI record?

Cross-check NPI 1003885757 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-03-30.