Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Andrew J Gerstmyer, C.R.N.A.

Certified Registered Nurse Anesthetist in Baltimore, MD · enumerated 2006.

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

National Provider Identifier

1891749099

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Andrew J Gerstmyer

Credential C.R.N.A.

Sex Male

Practice address 4940 Eastern Ave, Baltimore, MD, 21224

Phone (410) 955-6353

Enumeration date May 20, 2006

Last updated in NPPES Dec 5, 2011

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License R050853 (MD) Primary

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

Other identifiers

Identifier	Type	State	Issuer
060601400	Medicaid	MD	-

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 Andrew Gerstmyer practice?

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

What is the NPI number for Andrew Gerstmyer?

The National Provider Identifier (NPI) for Andrew Gerstmyer is 1891749099, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-05.