Eugene Bak
Anesthesiology Physician · Duarte, CA
Eugene Bak is an anesthesiology physician with a practice address in Duarte, California, and NPI 1568662187, issued on Jul 22, 2007. Check the license (California A91479, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Eugene Bak
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A91479 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Duarte RD, Duarte, CA 91010
- Phone
- (626) 256-4673
- Enumerated
- Jul 22, 2007
- Record last updated
- Nov 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070906000798); accepts Medicare assignment
- Medical or professional school
- Tufts University School Of Medicine, 2003
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 1500 Duarte RD
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Verify Eugene Bak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A91479Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Southern California Permanente Medical GroupFontana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eugene Bak among 7,571 anesthesiology physician records in California
Eugene Bak is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.
- NPI issued2007 · 47% of these records are older, 43% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2003 · median 2006 among the 4,868 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 anesthesiology physician records list a practice address in Duarte
They are 34 of the 1,287 NPPES records with a practice address in Duarte, and 7,571 anesthesiology physician records in California.
All 7,571 in California → Every provider in Duarte → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Sarkis Baltayian, MDDuarte, CA 910101932165776
- Walter Chang, MDDuarte, CA 910101497851919
- Chang-Hwa Mary Chen, M.D.Duarte, CA 910101245287622
- Alan Dean, M.D.Duarte, CA 910101346240652
- Andres Falabella, MDDuarte, CA 910101538125364
- Jeff Ge, M.D.Duarte, CA 910101326084294
- Russell Gray, MDDuarte, CA 910101265499065
- Gary Hum, M.D.Duarte, CA 910101598771511
Common questions
What is Eugene Bak's NPI number?
Eugene Bak's National Provider Identifier (NPI) is 1568662187, issued on Jul 22, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Eugene Bak located?
The NPPES record lists a practice address at 1500 Duarte RD, Duarte, CA, 91010. Phone: (626) 256-4673. Providers update this record themselves, so call before visiting.
How can I verify Eugene Bak's license?
NPPES lists California license number A91479, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.