HOLLY RAMONA HAMM FNP-C
NPI 1285416123
Nurse Practitioner - Family in Gualala, CA
About Holly Ramona Hamm Fnp-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
HOLLY RAMONA HAMM FNP-C (NPI 1285416123) is an individual family provider in Gualala, California, licensed in California (95026229) and active in the NPI registry since October 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Holly Ramona Hamm Fnp-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Holly Hamm reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Gualala, CA 95445
- Reassigned Medicare billing, California enrollment
- 16 clinicians in this Medicare group
Berkeley, CA 94705
- Reassigned Medicare billing, California enrollment
- 241 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 95445 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 2
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Holly Hamm's NPI number?
The NPI number for Holly Hamm is 1285416123. It was assigned to this individual provider in the NPPES registry on October 16, 2023.
Where is Holly Hamm located?
Holly Hamm practices at 46900 Ocean View Dr, Gualala, CA 95445. The listed phone number is (707) 884-4005.
What is Holly Hamm's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Holly Hamm enrolled in Medicare?
Yes. Holly Hamm is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Holly Hamm's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Holly Hamm reassigns Medicare benefits to 2 organizations: Redwood Coast Medical Services, Inc. (Gualala, CA) and Carbon Health Medical Group Of California PC (Berkeley, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Holly Hamm's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Holly Hamm was last updated on October 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Holly Ramona Hamm, FNP-C · NPI 1285416123
Family physician in Gualala, California. Individual provider, active in the CMS NPPES registry since October 16, 2023.
## Identity
- **NPI:** 1285416123 (Entity type: Individual)
- **Enumerated:** October 16, 2023
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 95026229 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 46900 OCEAN VIEW DR, Gualala, CA 95445-8458
- **Phone:** (707) 884-4005
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Redwood Coast Medical Services, Inc. (NPI 1962530725, Gualala, CA); Carbon Health Medical Group Of California PC (NPI 1417294232, Berkeley, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** October 16, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1285416123) · Data from the CMS NPPES public registry.