Ana Michelle Rothhammer-Ruiz, NP
Family Nurse Practitioner · Arbuckle, CA
Ana Michelle Rothhammer-Ruiz, NP is a family nurse practitioner with a practice address in Arbuckle, California, and NPI 1427621820, issued on Jul 22, 2021. Check the license (California 95015884, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ana Michelle Rothhammer-Ruiz
- Credential
- NP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 95015884 CA
Self-reported in NPPES; status is on the state search - Practice location
- 900 King St., Arbuckle, CA 95912
- Phone
- (530) 619-0800
- Enumerated
- Jul 22, 2021
- Record last updated
- Jul 22, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20220608002998); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family nurse practitioner records → All 16,966 in California → Look up another NPI →
Verify Ana Michelle Rothhammer-Ruiz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95015884Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family nurse practitioner in 2024
181 Medicare Part D claims for 129 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 13 claims were for opioids.
Most prescribed
- Albuterol Sulfate Hfa14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through 2 group practices
- Alameda Health SystemOakland, CA
- Permanente Medical Group IncSan Francisco, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ana Michelle Rothhammer-Ruiz among 16,966 family nurse practitioner records in California
Ana Michelle Rothhammer-Ruiz, NP is one of 16,966 family nurse practitioner records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 62% of them.
- NPI issued2021 · 62% of these records are older, 32% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileYes · 40% of these records are
- Graduated2020 · median 2019 among the 6,793 with a school on file
- Record last updated2021 · 42% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
2 family nurse practitioner records list a practice address in Arbuckle
They are 2 of the 19 NPPES records with a practice address in Arbuckle, and 16,966 family nurse practitioner records in California.
All 16,966 in California → Every provider in Arbuckle → Family Nurse Practitioner nationwide →
The 8 family nurse practitioner records with the nearest ZIP codes
- Leanne De Silva, MSN, FNP-C, PA-CArbuckle, CA 959121437260619
- Patricia Caldwell, F.N.P.Brownsville, CA 959191366475071
- Ashley Van Buren, FNP-CBrownsville, CA 959191396564258
- Susan Berganio, NP-CBeale Afb, CA 959031497053565
- Ricky Norwood, FNPBeale Afb, CA 959031730214511
- John Bryan Serrano, DNP, FNP-C,BSN, RNBCBeale Afb, CA 959031093174039
- Matthew Simmons, APRNBeale Afb, CA 959031811407851
- Bamidele AdetunjiMarysville, CA 959011326883240
Common questions
What is Ana Michelle Rothhammer-Ruiz, NP's NPI number?
Ana Michelle Rothhammer-Ruiz, NP's National Provider Identifier (NPI) is 1427621820, issued on Jul 22, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Ana Michelle Rothhammer-Ruiz, NP located?
The NPPES record lists a practice address at 900 King St., Arbuckle, CA, 95912. Phone: (530) 619-0800. Providers update this record themselves, so call before visiting.
How can I verify Ana Michelle Rothhammer-Ruiz, NP's license?
NPPES lists California license number 95015884, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Ana Michelle Rothhammer-Ruiz, NP prescribe under Medicare Part D?
In 2024, Ana Michelle Rothhammer-Ruiz, NP had 181 Medicare Part D claims for 129 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.