NPPES file of Aug 9, 2026

Ruby Sun

Certified Registered Nurse Anesthetist · San Leandro, CA

Ruby Sun is a certified registered nurse anesthetist with a practice address in San Leandro, California, and NPI 1639568322, issued on Jan 18, 2015. Check the license (California 95000261, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1639568322
Name
Ruby Sun
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
95000261 CA
Self-reported in NPPES; status is on the state search
Practice location
2500 Merced St, San Leandro, CA 94577
Phone
(510) 454-1000
Enumerated
Jan 18, 2015
Record last updated
Feb 11, 2022
Medicare enrollment
Enrolled (PECOS I20161128001727); accepts 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 certified registered nurse anesthetist records → All 2,943 in California → Look up another NPI →

Also registered at 2500 Merced St

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

  1. Rabiatu Abdullah, M.D.Emergency Medicine Physician1497833248
  2. Scott Abramson, M.D.Neurology Physician1891873667
  3. Jayaprada Achanta, M.D.Anesthesiology Physician1053463851
  4. Kristi Adachi, PHARMDPharmacist1396456737
  5. Mary Grace Aguayo, CRTCertified Respiratory Therapist1467923730
  6. Jatinder AhluwaliaPharmacist1508391483

Verify Ruby Sun in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95000261    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
Find 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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Bills Medicare through one group practice

  1. Permanente Medical Group IncSan Leandro, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ruby Sun among 2,943 certified registered nurse anesthetist records in California

Ruby Sun is one of 2,943 certified registered nurse anesthetist records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 55% of them.

  • NPI issued2015 · 55% of these records are older, 41% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2014 · median 2016 among the 2,089 with a school on file
  • Record last updated2022 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in California

There are 2,943 certified registered nurse anesthetist records in California.

All 2,943 in California → Every provider in San Leandro → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Jacob Bayani, C.R.N.ASan Leandro, CA 945771285690446
  2. Steven BazanSan Leandro, CA 945771336690387
  3. Jaclyn Cho, CRNASan Leandro, CA 945771407919640
  4. Joseph Janakes, CRNASan Leandro, CA 945771275682635
  5. Cindy Lee, C.R.N.ASan Leandro, CA 945771538407481
  6. Jennifer LimSan Leandro, CA 945771245873520
  7. Rajlakshmi Menon, CRNASan Leandro, CA 945771770645483
  8. Andrew PhanSan Leandro, CA 945771720693054

Common questions

What is Ruby Sun's NPI number?

Ruby Sun's National Provider Identifier (NPI) is 1639568322, issued on Jan 18, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Ruby Sun located?

The NPPES record lists a practice address at 2500 Merced St, San Leandro, CA, 94577. Phone: (510) 454-1000. Providers update this record themselves, so call before visiting.

How can I verify Ruby Sun's license?

NPPES lists California license number 95000261, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

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.

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.