Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Serena Michelle Mah
Registered Nurse in Oakland, CA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821728957
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Registry record
Entity type Individual (Type 1)
Name Serena Michelle Mah
Sex Female
Practice address 3100 Telegraph Ave Ste 350, Oakland, CA, 94609
Phone (925) 818-5702
Enumeration date Jun 13, 2022
Last updated in NPPES Jun 13, 2022
Taxonomy & licenses
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does Serena Mah practice?
The practice location on file with NPPES is in Oakland, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Serena Mah?
The National Provider Identifier (NPI) for Serena Mah is 1821728957, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Margaret Goetsch Registered Nurse · Oakland, CA NPI 1457080723 Sharla Mercado Registered Nurse · Oakland, CA NPI 1518698802 Melissa Acevedo Registered Nurse · Oakland, CA NPI 1558092403 Molly Niemuth Registered Nurse · Oakland, CA NPI 1518699537 Connie Chiou Registered Nurse · Oakland, CA NPI 1740913250 Indermeet Dhaliwal Certified Registered Nurse Anesthetist · Oakland, CA NPI 1013642933 Albert Lebouton Student in an Organized Health Care Education/Training Program · Oakland, CA NPI 1780319608 Hannah Hyun Student in an Organized Health Care Education/Training Program · Oakland, CA NPI 1659006575
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-13.