IndividualActive
Joanne Koo, MD
NPI 1215983580 · Internal Medicine Physician · Pomona, CA
Joanne Koo, MD is a Internal Medicine Physician provider in Pomona, CA (NPI 1215983580).
Provider details
- NPI number
- 1215983580
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- License
- A36581 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
3530 West Pomona Blvd
Pomona, CA 91769-0100
Phone: (909) 595-1221
Fax: (909) 598-4352
Street-level locationGet directions
Mailing address
1600 9th Street
Sacramento, CA 95814-6414
Registry dates
- Enumerated
- 2006-05-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Joanne Koo's NPI number?
- Joanne Koo's National Provider Identifier (NPI) is 1215983580, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanne Koo's specialty?
- Joanne Koo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joanne Koo located?
- Joanne Koo's practice location on file with NPPES is 3530 West Pomona Blvd, Pomona, CA 91769-0100.
- What is Joanne Koo's phone number?
- The practice phone number listed in the NPPES registry for Joanne Koo is (909) 595-1221.
- Is Joanne Koo's NPI active?
- Yes — Joanne Koo's NPI (1215983580) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.