NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Bayhealth Medical Center, Inc.

Certified Registered Nurse Anesthetist in Dover, DE · enumerated 2019 · authorized official Michael Tretina, Sr. Vice Resident/ Cfo.

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

National Provider Identifier

1861959777

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Bayhealth Medical Center, Inc.
Other name <Unavail>
Practice address 640 S State St, Dover, DE, 19901
Phone (302) 744-7000
Fax (302) 744-7181
Enumeration date Feb 27, 2019
Last updated in NPPES Feb 28, 2019

Taxonomy & classification

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers Primary

Authorized official

Name Michael Tretina
Title Sr. Vice Resident/ Cfo
Phone (302) 744-7162

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

Who is the authorized official for Bayhealth Medical Center, Inc.?
NPPES lists Michael Tretina (Sr. Vice Resident/ Cfo) as the authorized official for this organization.
What is the NPI number for Bayhealth Medical Center, Inc.?
The NPI for Bayhealth Medical Center, Inc. is 1861959777, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-02-28.