NPPES file of Aug 9, 2026

Siak Lee, MBBS

Pediatric Anesthesiology Physician · Oakland, CA

Siak Lee, MBBS is a pediatric anesthesiology physician with a practice address in Oakland, California, and NPI 1689561763, issued on Jun 20, 2025. Check the license (California SPI889, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689561763
Name
Siak Lee
Credential
MBBS
Primary taxonomy
Pediatric Anesthesiology Physician 207LP3000X
License number
SPI889 CA
Self-reported in NPPES; status is on the state search
Practice location
747 52ND St, Oakland, CA 94609
Phone
(510) 428-3410
Enumerated
Jun 20, 2025
Record last updated
Jun 20, 2025
Medicare enrollment
Enrolled (PECOS I20260126001053); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest pediatric anesthesiology physician records → All 240 in California → Look up another NPI →

Also registered at 747 52ND St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Karida AdetoroStudent in an Organized Health Care Education/Training Program1003647199
  2. Maryam Afshar, MDPediatrics Physician1194081786
  3. Pallavi Agarwal, MD, MBBSPediatrics Physician1710595053
  4. Anurag Agrawal, MDPediatric Hematology & Oncology Physician1346485026
  5. Javier AguayoStudent in an Organized Health Care Education/Training Program1104527316
  6. Monica AguilarStudent in an Organized Health Care Education/Training Program1770276990

Verify Siak Lee in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license SPI889    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Siak Lee among 240 pediatric anesthesiology physician records in California

Siak Lee, MBBS is one of 240 pediatric anesthesiology physician records with a practice address in California. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2025, is newer than 99% of them.

  • NPI issued2025 · 99% of these records are older, 0% newer
  • In a Medicare fileNo · 63% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2013 · median 2009 among the 136 with a school on file
  • Record last updated2025 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP3000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Anesthesiology Physician providers in California

There are 240 pediatric anesthesiology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 240 in California → Every provider in Oakland → Pediatric Anesthesiology Physician nationwide →

The 8 pediatric anesthesiology physician records with the nearest ZIP codes

  1. Velupandian Guruswamy, MBBS,DA,FCARCSI,FRCAOakland, CA 946091912724477
  2. Dominika Motas, MDOakland, CA 946091245434190
  3. Nicholas Riegels, MDOakland, CA 946111174719017
  4. Toni Daniels, M.D.Oakland, CA 946061619918364
  5. Levina Tran, M.D.Walnut Creek, CA 945961841428984
  6. Kaitlin Flannery, MDStanford, CA 943051699160325
  7. Michael Lennig, MDStanford, CA 943051609166719
  8. Stephanie Pan, MDStanford, CA 943051558603860

Common questions

What is Siak Lee, MBBS's NPI number?

Siak Lee, MBBS's National Provider Identifier (NPI) is 1689561763, issued on Jun 20, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Siak Lee, MBBS located?

The NPPES record lists a practice address at 747 52ND St, Oakland, CA, 94609. Phone: (510) 428-3410. Providers update this record themselves, so call before visiting.

How can I verify Siak Lee, MBBS's license?

NPPES lists California license number SPI889, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.