Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Woosung Ahn, MD, Inc

Organization Internal Medicine Physician · NPI 1285766253

Woosung Ahn, MD, Inc is an Internal Medicine Physician in Lakewood, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
Inc — Incorporated
A form of business registration, not a clinical qualification.

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Practice location Address checks out

20145 Pioneer Blvd
Lakewood, CA 90715-1051
Phone: (562) 916-5020
Fax: (562) 916-5022
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A51408 (CA)

Record details

NPI number1285766253
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Woosung Ahn — President · (562) 916-5020
NPI enumeratedMarch 12, 2007
Last updated in NPPESJune 21, 2018
Mailing address20145 Pioneer Blvd, Lakewood, CA 90715-1051

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