Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

MS. Georgina Giselle Grimm, FNP

Individual provider Family Nurse Practitioner · NPI 1104367739

MS. Georgina Giselle Grimm, FNP is a Nurse Practitioner in Oakland, California. Qualified in 2016, 10 years ago. Practices with Open Door Community Health Centers, a 114-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
10
Licensed in
CA
In the registry since
2017
What do these letters mean?
FNP — Family Nurse Practitioner
A nurse practitioner who treats patients of all ages, much like a family doctor.

See every abbreviation used in this directory →

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Practice location Address checks out

9925 International Blvd #5
Oakland, CA 94603-2558
Phone: (510) 777-1177
Fax: (510) 550-2644
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 95006100 (CA)

Record details

NPI number1104367739
Entity typeIndividual (Type 1)
GenderFemale
Credentials FNP
Sole proprietorNo
NPI enumeratedMarch 15, 2017
Last updated in NPPESMarch 15, 2017

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Open Door Community Health Centers — 114 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients80
Services billed 144 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Providence Redwood Memorial Hospital Hospital · Fortuna, CA · listed as Redwood Memorial Hospital
  • Mad River Community Hospital Hospital · Arcata, CA
  • Providence St Joseph Hospital Hospital · Eureka, CA
  • Providence At Home With Compassus Home Health, Humboldt Home health agency · Eureka, CA

Colleagues at Open Door Community Health Centers

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 114 clinicians in the practice; 12 are shown here.

Other providers in Oakland