NPI Portal NPI Lookup & Verification

Dean Ahn, MD

Dean Ahn is a Surgery Physician provider (Surgery) practicing in Bellflower, CA, registered in the NPPES registry with NPI 1821165846 since 2006. The credential MD stands for Doctor of Medicine.

✓ Active NPI ✓ Valid NPI checksum

NPI 1821165846
Entity type Individual (Type 1)
Name Dean Ahn
Credential MD
Sex Male
Practice address 9400 ROSECRANS AVE, Bellflower, CA, 90706
Phone 5624613000
Enumeration date 2006-11-29
Last updated in NPPES 2021-11-29

Taxonomy & licenses

Taxonomy code Specialty Primary License State
208600000X Surgery Physician Primary G83801 CA

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Copy-ready billing details
Provider: Dean Ahn, MD
NPI: 1821165846
Taxonomy: 208600000X (Surgery Physician)
Address: 9400 ROSECRANS AVE, Bellflower, CA, 90706

Other providers at this practice address

NPI Name Type Specialty Location
1427049782 David Liu Individual Critical Care Medicine (Anesthesiology) Physician Bellflower, CA
1003867912 Alexander Lin Individual Specialist Bellflower, CA
1609818103 Audra Kennedy Individual Certified Registered Nurse Anesthetist Bellflower, CA
1043242555 Southern California Permanente Medical Group Organization Health Maintenance Organization Bellflower, CA
1205947488 Scott Gwaltney Individual Emergency Medicine Physician Bellflower, CA
1326147109 Cynthia Odegard Individual Pharmacist Bellflower, CA
1518059773 Paul Riskin Individual Psychiatry Physician Bellflower, CA
1740373174 Lidia Tiplea Individual Neurology Physician Bellflower, CA

Verify this record

Cross-check NPI 1821165846 against the authoritative CMS record: view Dean Ahn on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What is the NPI number for Dean Ahn?
The National Provider Identifier (NPI) for Dean Ahn is 1821165846, a Type 1 (individual) record in the CMS NPPES registry.
Where does Dean Ahn practice?
The practice location on file with NPPES is in Bellflower, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2021-11-29.