Jeanine A. Ishak, N.P.
Nurse Practitioner · Westlake Village, CA
Jeanine A. Ishak, N.P. is a nurse practitioner with a practice address in Westlake Village, California, and NPI 1962456475, issued on May 20, 2006. Check the license (California 12576, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jeanine A. Ishak
- Credential
- N.P.
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 12576 CA
Self-reported in NPPES; status is on the state search - Practice location
- 32144 Agoura RD, Westlake Village, CA 91361
- Phone
- (805) 379-3376
- Enumerated
- May 20, 2006
- Record last updated
- Dec 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (805) 379-3267
- Medicare enrollment
- Enrolled (PECOS I20091216000164); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 32144 Agoura RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sona Georgian, D.D.S.General Practice Dentistry1992865711
- Karin Harp, MDDermatology Physician1518923374
- Asher Kashanchi, PHARM DPharmacist1083051825
- Charles Kelman, D.P.MPodiatrist1063490738
Verify Jeanine A. Ishak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 12576Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
63% fewer Medicare Part D claims than the average nurse practitioner in 2024
410 Medicare Part D claims for 183 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D.
Most prescribed
- Triamcinolone Acetonide78 claims
- Fluocinonide59 claims
- Ketoconazole56 claims
- Desonide31 claims
- Cephalexin25 claims
- Fluorouracil23 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $102.74
5 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 38,884 providers of this specialty with any payment received $791.64 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
- Dermatology Medical Group OF Oxnard And CamarilloOxnard, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Jeanine A. Ishak among 8,223 nurse practitioner records in California
Jeanine A. Ishak, N.P. 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 82% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2001 · median 2017 among the 3,425 with a school on file
- Record last updated2020 · 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 Westlake Village → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Tabitha Carnevale, RN, BSN, FNPThousand Oaks, CA 913611063701225
- Diana CizmadijaThousand Oaks, CA 913611629408307
- Kim Dannenberg, NPWestlake Village, CA 913611982172201
- Mia De Leon, NPWestlake Village, CA 913611700119195
- Sue Ann Ferraro, NPThousand Oaks, CA 913611477218311
- Rollena Guachino, RNThousand Oaks, CA 913611730854217
- Denise Jaffe, NPThousand Oaks, CA 913611982718227
- Lidiya Lambert, NP, MSNWestlake Vlg, CA 913611811641533
Common questions
What is Jeanine A. Ishak, N.P.'s NPI number?
Jeanine A. Ishak, N.P.'s National Provider Identifier (NPI) is 1962456475, issued on May 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jeanine A. Ishak, N.P. located?
The NPPES record lists a practice address at 32144 Agoura RD, Westlake Village, CA, 91361. Phone: (805) 379-3376. Providers update this record themselves, so call before visiting.
How can I verify Jeanine A. Ishak, N.P.'s license?
NPPES lists California license number 12576, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Jeanine A. Ishak, N.P. prescribe under Medicare Part D?
In 2024, Jeanine A. Ishak, N.P. had 410 Medicare Part D claims for 183 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Jeanine A. Ishak, N.P.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.