Marjorie Hammer, FNP
NPI 1912258880 · Family Nurse Practitioner · Berkeley, CA
Marjorie Hammer, FNP is a Family Nurse Practitioner provider in Berkeley, CA (NPI 1912258880).
Provider details
- NPI number
- 1912258880
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Female
- Sole proprietor
- No
- License
- 391710 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Nursing Service Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-10-02
- Last updated
- 2012-10-02
Frequently asked questions
- What is Marjorie Hammer's NPI number?
- Marjorie Hammer's National Provider Identifier (NPI) is 1912258880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marjorie Hammer's specialty?
- Marjorie Hammer is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Marjorie Hammer located?
- Marjorie Hammer's practice location on file with NPPES is 1735 Stuart St, Berkeley, CA 94703-2123.
- What is Marjorie Hammer's phone number?
- The practice phone number listed in the NPPES registry for Marjorie Hammer is (510) 841-6585.
- Is Marjorie Hammer's NPI active?
- Yes — Marjorie Hammer's NPI (1912258880) is active in the NPPES registry as of the last update on 2012-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.