Tien-Hoa Ko, M.D.
NPI 1912915489 · Occupational Medicine Physician · Commerce, CA
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tien-Hoa Ko, M.D. is a Occupational Medicine Physician provider in Commerce, CA (NPI 1912915489).
Provider details
- NPI number
- 1912915489
- Entity type
- Individual
- Primary specialty
- Occupational Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G76493 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Mailing address
Registry dates
- Enumerated
- 2006-08-03
- Last updated
- 2007-07-08
Frequently asked questions
- What is Tien-Hoa Ko's NPI number?
- Tien-Hoa Ko's National Provider Identifier (NPI) is 1912915489, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tien-Hoa Ko's specialty?
- Tien-Hoa Ko is listed in the NPPES registry with a primary specialty of Occupational Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tien-Hoa Ko located?
- Tien-Hoa Ko's practice location on file with NPPES is 3430 Garfield Ave., Commerce, CA 90040.
- What is Tien-Hoa Ko's phone number?
- The practice phone number listed in the NPPES registry for Tien-Hoa Ko is (818) 952-3453.
- Does Tien-Hoa Ko accept Medicare?
- Tien-Hoa Ko is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tien-Hoa Ko's NPI active?
- Yes — Tien-Hoa Ko's NPI (1912915489) 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.