Stephanie Gay Peffer, N.P.
Primary Care Nurse Practitioner · Arnold, CA
Stephanie Gay Peffer, N.P. is a primary care nurse practitioner with a practice address in Arnold, California, and NPI 1447294665, issued on Jun 16, 2006. Check the license (California NP14695, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Stephanie Gay Peffer
- Credential
- N.P.
- Primary taxonomy
- Primary Care Nurse Practitioner 363LP2300X
- License number
- NP14695 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2740 Highway 4, Arnold, CA 95223
- Phone
- (209) 795-4488
- Enumerated
- Jun 16, 2006
- Record last updated
- Jul 13, 2026
- Fax
- (209) 795-0984
- Entity
- Type 1 · individual
8 nearest primary care nurse practitioner records → All 1,131 in California → Look up another NPI →
Also registered at 2740 Highway 4
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sandra Shetzline, DOAdult Medicine Physician1033227715
Verify Stephanie Gay Peffer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP14695Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.9 times the Medicare Part D claims of the average primary care nurse practitioner in 2024
7,370 Medicare Part D claims for 504 beneficiaries, against an average of 1,492 among the 5,992 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 401 claims were for opioids.
Most prescribed
- Atorvastatin Calcium397 claims
- Losartan Potassium288 claims
- Levothyroxine Sodium259 claims
- Amlodipine Besylate252 claims
- Lisinopril246 claims
- Hydrocodone-Acetaminophen235 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.
Stephanie Gay Peffer among 1,131 primary care nurse practitioner records in California
Stephanie Gay Peffer, N.P. is one of 1,131 primary care nurse practitioner records with a practice address in California. 63% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than under 1% of them.
- NPI issued2006 · under 1% of these records are older, 93% newer
- In a Medicare fileYes · 63% of these records are
- In the CMS Doctors and Clinicians fileNo · 35% of these records are
- Record last updated2026 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP2300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 primary care nurse practitioner record lists a practice address in Arnold
They are 1 of the 23 NPPES records with a practice address in Arnold, and 1,131 primary care nurse practitioner records in California.
All 1,131 in California → Every provider in Arnold → Primary Care Nurse Practitioner nationwide →
The 8 primary care nurse practitioner records with the nearest ZIP codes
- Victor Nwaoha, AGNP-CStockton, CA 952191376418327
- Manpreet KaurFrench Camp, CA 952311518564145
- Tatung ChuStockton, CA 952131992690366
- Teresa Magana, FNPStockton, CA 952101891884334
- Marya Oakes, FNPStockton, CA 952051912978263
- Edilberto MinozaStockton, CA 952031215322037
- Katherine MurphyValley Springs, CA 952521346929130
- Gunjana DuwadiSan Jose, CA 951481255218269
Common questions
What is Stephanie Gay Peffer, N.P.'s NPI number?
Stephanie Gay Peffer, N.P.'s National Provider Identifier (NPI) is 1447294665, issued on Jun 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Stephanie Gay Peffer, N.P. located?
The NPPES record lists a practice address at 2740 Highway 4, Arnold, CA, 95223. Phone: (209) 795-4488. Providers update this record themselves, so call before visiting.
How can I verify Stephanie Gay Peffer, N.P.'s license?
NPPES lists California license number NP14695, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Stephanie Gay Peffer, N.P. prescribe under Medicare Part D?
In 2024, Stephanie Gay Peffer, N.P. had 7,370 Medicare Part D claims for 504 beneficiaries; the average among primary care nurse practitioner prescribers was 1,492. 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.