NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Marian Ellen Dahmer, P.A.

Physician Assistant in Oakland, CA · enumerated 2011.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1164700258

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Marian Ellen Dahmer
Credential P.A.
Sex Female
Practice address 365 Hawthorne Ave Ste 201, Oakland, CA, 94609
Phone (510) 452-1345
Enumeration date Jul 24, 2011
Last updated in NPPES May 27, 2022

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Marian Dahmer?
The National Provider Identifier (NPI) for Marian Dahmer is 1164700258, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marian Dahmer practice?
The practice location on file with NPPES is in Oakland, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-27.