Stephen Koh, M.D., PH.D.
NPI 1003057316 · Anatomic Pathology & Clinical Pathology Physician · Anaheim, CA
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Koh, M.D., PH.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Anaheim, CA (NPI 1003057316).
Provider details
- NPI number
- 1003057316
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A98501 (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
17 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
- 2009-03-16
- Last updated
- 2022-02-10
Frequently asked questions
- What is Stephen Koh's NPI number?
- Stephen Koh's National Provider Identifier (NPI) is 1003057316, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Koh's specialty?
- Stephen Koh is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen Koh located?
- Stephen Koh's practice location on file with NPPES is 3440 E La Palma Ave, Anaheim, CA 92806-2020.
- What is Stephen Koh's phone number?
- The practice phone number listed in the NPPES registry for Stephen Koh is (714) 644-6160.
- Does Stephen Koh accept Medicare?
- Stephen Koh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Koh's NPI active?
- Yes — Stephen Koh's NPI (1003057316) is active in the NPPES registry as of the last update on 2022-02-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.