Holly Ramona Hamm, FNP-C
- Part D claims, 2024
- 510
- Hospital affiliations
- 1
- Industry payments
- $18
- Medical groups
- 2
- State license
- 1
- Practice address
- 132 Vintage Way Ste F5, Novato, CA 94945
- Practice phone
- Call (628) 203-9029
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
CARBON HEALTH MEDICAL GROUP OF CALIFORNIA PC
Urgent Care - Additional Location · Novato, California
Find Holly Hamm's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Holly Ramona Hamm is a family nurse practitioner in Novato, California
Holly Hamm practices at CARBON HEALTH MEDICAL GROUP OF CALIFORNIA PC in Novato, California.
Holly Hamm's NPI, 1285416123, was assigned on October 16, 2023. Holly Hamm holds California license 95026229.
- NPI
- 1285416123NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5799138871
- NPI enumeration date
- October 16, 2023
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (628) 203-9029
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 29
- Medical school graduation
- 2023
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Holly Ramona Hamm practices at CARBON HEALTH MEDICAL GROUP OF CALIFORNIA PC in Novato, California
Holly Hamm's primary practice is CARBON HEALTH MEDICAL GROUP OF CALIFORNIA PC, at 132 Vintage Way Ste F5, Novato, CA 94945. The practice phone is (628) 203-9029.
- CARBON HEALTH MEDICAL GROUP OF CALIFORNIA PC132 Vintage Way Ste F5, Novato, CA 94945Phone(628) 203-9029
Source: Dmand AI Affiliation Data
Holly Ramona Hamm is affiliated with 3 sites of care and 2 medical groups
Holly Hamm's primary practice is CARBON HEALTH MEDICAL GROUP OF CALIFORNIA PC in Novato, California. Holly Hamm is also affiliated with Novato Community Hospital. The medical group on file is Carbon Health. Dmand AI also links Holly Hamm to 1 more community health center and 1 medical group, each named with a free account. Holly Hamm's employer is on file too: an urgent care center.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Holly Ramona Hamm's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Holly Hamm practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CARBON HEALTH MEDICAL GROUP OF CALIFORNIA PC | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Holly Ramona Hamm is one of 13,532 family nurse practitioners in California
Family is Holly Hamm's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Holly Hamm is licensed in California.
Specialties and state licenses
- Family nurse practitioner, CaliforniaPrimary
Family nurse practitioners near Holly Hamm
Counts of family nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Holly Ramona Hamm's patients have a median age of 44
Across all payers, Dmand AI patient panel data puts Holly Hamm's median patient age at 44, with 58% women.
Holly Hamm's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 44
Patient panel by sex, all payers
- Women58%
- Men40%
Source: Dmand AI Patient Panel Data
Holly Ramona Hamm wrote 510 Medicare Part D claims in 2024
In 2024, Holly Hamm wrote 510 Medicare Part D claims for 143 patients. 86% of them were for generic drugs. CMS names the drug for 166 of them, across 9 drugs with 11 or more claims each, at $15,478 in total drug cost.
Holly Hamm's Part D claims by kind of drug, 2024
- Generic440 claims86%
- Brand-name and other70 claims14%
Holly Hamm's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Holly Hamm's Part D claims, 2024
- Opioids7%35 of 510 claims
- Antibiotics7%34 of 510 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Holly Ramona Hamm takes part in Medicare
Holly Hamm accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Holly Ramona Hamm received $18 in industry payments in 2024
CMS Open Payments shows 1 general payment to Holly Hamm from 1 drug or device company in 2024. Food and beverage make up the largest share, 100% of the total. Indivior Inc. paid the most, $18.
Companies that paid Holly Hamm the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Holly Ramona Hamm's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Holly Ramona Hamm
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Holly Ramona Hamm's NPI number?
Holly Ramona Hamm's NPI number is 1285416123. It was assigned on October 16, 2023, and it is active in the NPI Registry.
What does Holly Ramona Hamm specialize in?
Holly Ramona Hamm is a family nurse practitioner in Novato, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Holly Ramona Hamm practice?
Holly Hamm practices at 132 Vintage Way Ste F5, Novato, CA 94945. Holly Hamm's primary practice is CARBON HEALTH MEDICAL GROUP OF CALIFORNIA PC in Novato, California. Dmand AI also links Holly Hamm to 1 community health center and 1 medical group.
What is Holly Ramona Hamm's office phone number?
The practice phone on file for Holly Hamm is (628) 203-9029.
What is Holly Ramona Hamm's medical license number?
Holly Hamm holds California license 95026229.
Which hospitals is Holly Ramona Hamm affiliated with?
Holly Hamm is affiliated with Novato Community Hospital.
What medical group is Holly Ramona Hamm part of?
Holly Hamm is linked to Carbon Health. Dmand AI links Holly Hamm to 1 more medical group.
Does Holly Ramona Hamm accept Medicare?
Yes. CMS lists Holly Hamm as accepting Medicare assignment.
What drugs does Holly Ramona Hamm prescribe most?
In 2024 Medicare Part D data, Holly Hamm's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Estradiol.
Has Holly Ramona Hamm received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to Holly Hamm from 1 company from 2024 to 2024. The largest total came from Indivior Inc.
How long has Holly Ramona Hamm been practicing?
Holly Hamm graduated from medical school in 2023, 3 years ago.
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