Carmen Rae Ernst, NP
Adult Health Nurse Practitioner · Sunnyvale, CA
Carmen Rae Ernst, NP is an adult health nurse practitioner with a practice address in Sunnyvale, California, and NPI 1679292015, issued on Aug 26, 2022. Check the license (California 95022371, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Carmen Rae Ernst
- Credential
- NP
- Primary taxonomy
- Adult Health Nurse Practitioner 363LA2200X
- License number
- 95022371 CA
Self-reported in NPPES; status is on the state search - Practice location
- 301 Old San Francisco RD, Sunnyvale, CA 94086
- Phone
- (408) 524-4116
- Enumerated
- Aug 26, 2022
- Record last updated
- May 9, 2023
- Medicare enrollment
- Enrolled (PECOS I20230504002324); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest adult health nurse practitioner records → All 1,405 in California → Look up another NPI →
Also registered at 301 Old San Francisco RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Zubia Ahmad, MDInternal Medicine Physician1265879522
- Syed Salman Ali, MDInternal Medicine Physician1740621671
- Wafa Aljuneidi, MSN, APRN-NP, FNP-CNurse Practitioner1083583991
- Aisha AminInternal Medicine Physician1013440981
- Joyce Ang, MDPediatrics Physician1346634698
- Lulua Bahrainwala, MD, MSFamily Medicine Physician1568949709
Verify Carmen Rae Ernst in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95022371Check 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 adult health nurse practitioner in 2024
181 Medicare Part D claims for 57 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 64% of claims.
Most prescribed
- Ozempic57 claims
- Mounjaro39 claims
- Metformin Hcl Er29 claims
- Wegovy19 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.
Industry payments in 2024: $121.83
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSunnyvale, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Carmen Rae Ernst among 1,405 adult health nurse practitioner records in California
Carmen Rae Ernst, NP is one of 1,405 adult health nurse practitioner records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 88% of them.
- NPI issued2022 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 56% of these records are
- In the CMS Doctors and Clinicians fileYes · 31% of these records are
- Graduated2022 · median 2013 among the 441 with a school on file
- Record last updated2023 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Adult Health Nurse Practitioner providers in California
There are 1,405 adult health nurse practitioner records in California.
All 1,405 in California → Every provider in Sunnyvale → Adult Health Nurse Practitioner nationwide →
The 8 adult health nurse practitioner records with the nearest ZIP codes
- Meghan McKenna, FNPSunnyvale, CA 940861902234404
- Thomas Grothe, NPSouth San Francisco, CA 940801154431203
- Cherie Hawkins, NPSouth San Francisco, CA 940801245318633
- Patricia Jasper, NURSE PRACTITIONERSouth San Francisco, CA 940801720594294
- Jenna Kai Fen Liang, NP-CSouth San Francisco, CA 940801922485895
- Phyllis Moore, NPSouth San Francisco, CA 940801528125747
- John Phillips, RN, MSN, FNP-CSouth San Francisco, CA 940801770651887
- John SevillaSouth San Francisco, CA 940801093407306
Common questions
What is Carmen Rae Ernst, NP's NPI number?
Carmen Rae Ernst, NP's National Provider Identifier (NPI) is 1679292015, issued on Aug 26, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Carmen Rae Ernst, NP located?
The NPPES record lists a practice address at 301 Old San Francisco RD, Sunnyvale, CA, 94086. Phone: (408) 524-4116. Providers update this record themselves, so call before visiting.
How can I verify Carmen Rae Ernst, NP's license?
NPPES lists California license number 95022371, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Carmen Rae Ernst, NP prescribe under Medicare Part D?
In 2024, Carmen Rae Ernst, NP had 181 Medicare Part D claims for 57 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.