Frances Epler
Nurse Practitioner · San Mateo, CA
Frances Epler is a nurse practitioner with a practice address in San Mateo, California, and NPI 1609922186, issued on Jan 26, 2007. Check the license (California RN596233, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Frances Epler
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- RN596233 CA
Self-reported in NPPES; status is on the state search - Practice location
- 222 W 39TH Ave, San Mateo, CA 94403
- Phone
- (650) 573-2222
- Enumerated
- Jan 26, 2007
- Record last updated
- Mar 27, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicaid ID
- 1609922186 CA
- Medicare enrollment
- Enrolled (PECOS I20040127000511); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 222 W 39TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Frances Epler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license RN596233Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average nurse practitioner in 2024
109 Medicare Part D claims for 28 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 19 claims were for opioids.
Most prescribed
- Metoprolol Tartrate17 claims
- Atorvastatin Calcium13 claims
- Oxycodone Hcl12 claims
- Naloxone Hcl11 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 one group practice
- John Muir Physician NetworkBerkeley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Frances Epler among 8,223 nurse practitioner records in California
Frances Epler is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 18% of them.
- NPI issued2007 · 18% of these records are older, 73% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2002 · median 2017 among the 3,425 with a school on file
- Record last updated2008 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nurse Practitioner providers in California
There are 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in San Mateo → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Stacey Adelson, NPSan Mateo, CA 944031104951797
- Faina Birman, NPSan Mateo, CA 944031730242249
- Barbara Brodie, NPSan Mateo, CA 944031124192893
- Tracy ButlerSan Mateo, CA 944031457407199
- Nancy Chiao-CastleSan Mateo, CA 944031578619052
- Maria Cruz, NPSan Mateo, CA 944031861568768
- Maia DehlingerSan Mateo, CA 944031285706390
- Wendee Duhon, NPSan Mateo, CA 944031134299605
Common questions
What is Frances Epler's NPI number?
Frances Epler's National Provider Identifier (NPI) is 1609922186, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Frances Epler located?
The NPPES record lists a practice address at 222 W 39TH Ave, San Mateo, CA, 94403. Phone: (650) 573-2222. Providers update this record themselves, so call before visiting.
How can I verify Frances Epler's license?
NPPES lists California license number RN596233, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Frances Epler prescribe under Medicare Part D?
In 2024, Frances Epler had 109 Medicare Part D claims for 28 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.