NPPES file of Aug 9, 2026

Serena Michelle Mah

Registered Nurse · Oakland, CA

Serena Michelle Mah is a registered nurse with a practice address in Oakland, California, and NPI 1821728957, issued on Jun 13, 2022. Check the license (California 95098398, 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
1821728957
Name
Serena Michelle Mah
Primary taxonomy
Registered Nurse 163W00000X
License number
95098398 CA
Self-reported in NPPES; status is on the state search
Practice location
3100 Telegraph Ave Ste 350, Oakland, CA 94609
Phone
(925) 818-5702
Enumerated
Jun 13, 2022
Record last updated
Jun 13, 2022
Medicare enrollment
Enrolled (PECOS I20260323001040); 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 registered nurse records → All 13,506 in California → Look up another NPI →

Also registered at 3100 Telegraph Ave Ste 350

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

  1. Melissa AcevedoRegistered Nurse1558092403
  2. Saqib AhmadRegistered Nurse1639917651
  3. Corin Alcorn, RNRegistered Nurse1194567289
  4. Chloe BalloRegistered Nurse1033899976
  5. Andrew Barone, RNCritical Care Medicine Registered Nurse1134010366
  6. Doan Bien, RNRegistered Nurse1003702390

Verify Serena Michelle Mah 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 95098398    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).

Serena Michelle Mah among 13,506 registered nurse records in California

Serena Michelle Mah is one of 13,506 registered nurse records with a practice address in California. 3% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 60% of them.

  • NPI issued2022 · 60% of these records are older, 35% newer
  • In a Medicare fileYes · 3% of these records are
  • In the CMS Doctors and Clinicians fileYes · 1% of these records are
  • Graduated2025 · median 2018 among the 146 with a school on file
  • Record last updated2022 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 163W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

436 registered nurse records list a practice address in Oakland

They are 436 of the 18,558 NPPES records with a practice address in Oakland, and 13,506 registered nurse records in California.

All 13,506 in California → Every provider in Oakland → Registered Nurse nationwide →

The 8 registered nurse records with the nearest ZIP codes

  1. Amberlee Amaral, RNOakland, CA 946091861091225
  2. Elena Brauchy, RNOakland, CA 946091104271485
  3. Julia Chan, RNOakland, CA 946091619097631
  4. Jennifer Cooke, R.N.Oakland, CA 946091588007025
  5. Deborah James, R.N.Oakland, CA 946091467636795
  6. Lisa Lefebre, RNOakland, CA 946091760518450
  7. Xue Lin, RNOakland, CA 946091427350834
  8. Christine McCaffrey, RNOakland, CA 946091265568729

Common questions

What is Serena Michelle Mah's NPI number?

Serena Michelle Mah's National Provider Identifier (NPI) is 1821728957, issued on Jun 13, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Serena Michelle Mah located?

The NPPES record lists a practice address at 3100 Telegraph Ave Ste 350, Oakland, CA, 94609. Phone: (925) 818-5702. Providers update this record themselves, so call before visiting.

How can I verify Serena Michelle Mah's license?

NPPES lists California license number 95098398, 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.