Peter Ahn, NURSE PRACTITIONER
Family Nurse Practitioner · Winnetka, CA
Peter Ahn, NURSE PRACTITIONER is a family nurse practitioner with a practice address in Winnetka, California, and NPI 1568909901, issued on Jan 24, 2017. Check the license (California NP95005656, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Peter Ahn
- Credential
- NURSE PRACTITIONER
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- NP95005656 CA
Self-reported in NPPES; status is on the state search - Practice location
- 20800 Sherman Way, Winnetka, CA 91306
- Phone
- (818) 883-2273
- Enumerated
- Jan 24, 2017
- Entity
- Type 1 · individual
Also registered at 20800 Sherman Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Humberto Barboza, PAPhysician Assistant1467564724
- Daniel Bravo, FNPGeneral Practice Physician1871396895
- Tina Donaldson, RN, NPBasic Emergency Medical Technician1376934174
- Frederick FernandezFamily Nurse Practitioner1811390651
- Lana Flippo, M.D.Pediatrics Physician1407114341
- Violeta GallegosFamily Nurse Practitioner1902378862
Verify Peter Ahn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license NP95005656Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
14% fewer Medicare Part D claims than the average family nurse practitioner in 2024
1,114 Medicare Part D claims for 162 beneficiaries, against an average of 1,302 among the 128,048 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Atorvastatin Calcium133 claims
- Metformin Hcl104 claims
- Losartan Potassium66 claims
- Levothyroxine Sodium63 claims
- Pravastatin Sodium62 claims
- Lisinopril57 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: $756.89
65 payments, mostly food and beverage; the largest payer was Amgen Inc.. The 91,435 providers of this specialty with any payment received $675.31 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.
One hospital or facility affiliation
- EL Proyecto Del Barrio IncCanoga Park, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
13 family nurse practitioner records list a Winnetka practice address
They are 13 of the 195 NPPES records with a Winnetka practice address, and 15,527 family nurse practitioner records in California.
All 13 in Winnetka → All 15,527 in California → Every provider in Winnetka →
Other family nurse practitioner records in California
- Danielle Aaroe, FAMILY NURSE PRACTITOroville, CA1750767083
- Joshua AaronMission Hills, CA1477291805
- Orly Aaron, NPSan Francisco, CA1376912451
- Paris Gilbert Russ AaronSacramento, CA1871079111
- Alvin Joseph Abad, FNP-CSan Francisco, CA1154919306
- Frances Abad, FNPLos Angeles, CA1053504514
- Raymond Abagat, FNPTorrance, CA1306685821
- Ashley AbalCastaic, CA1740140698
- Maureen Abaray, F.N.P.Stockton, CA1265549349
- Arcelyn Abas, NPLa Mirada, CA1174035885
Common questions
What is Peter Ahn, NURSE PRACTITIONER's NPI number?
Peter Ahn, NURSE PRACTITIONER's National Provider Identifier (NPI) is 1568909901, issued on Jan 24, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Peter Ahn, NURSE PRACTITIONER located?
The NPPES record lists a practice address at 20800 Sherman Way, Winnetka, CA, 91306. Phone: (818) 883-2273. Providers update this record themselves, so call before visiting.
How can I verify Peter Ahn, NURSE PRACTITIONER's license?
NPPES lists California license number NP95005656, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Peter Ahn, NURSE PRACTITIONER prescribe under Medicare Part D?
In 2024, Peter Ahn, NURSE PRACTITIONER had 1,114 Medicare Part D claims for 162 beneficiaries; the average among family nurse practitioner prescribers was 1,302. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.