Eugene Bak
NPI 1568662187 · Anesthesiology Physician · Duarte, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eugene Bak is a Anesthesiology Physician provider in Duarte, CA (NPI 1568662187).
Provider details
- NPI number
- 1568662187
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- A91479 (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
18 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
- 2007-07-22
- Last updated
- 2021-11-23
- Certified
- 2021-11-23
Frequently asked questions
- What is Eugene Bak's NPI number?
- Eugene Bak's National Provider Identifier (NPI) is 1568662187, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eugene Bak's specialty?
- Eugene Bak is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Eugene Bak located?
- Eugene Bak's practice location on file with NPPES is 1500 Duarte Rd, Duarte, CA 91010-3012.
- What is Eugene Bak's phone number?
- The practice phone number listed in the NPPES registry for Eugene Bak is (626) 256-4673.
- Does Eugene Bak accept Medicare?
- Eugene Bak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eugene Bak's NPI active?
- Yes — Eugene Bak's NPI (1568662187) is active in the NPPES registry as of the last update on 2021-11-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.