Joshua James Istrin, R.D.
Student in an Organized Health Care Education/Training Program · Woodland Hills, CA
Joshua James Istrin, R.D. is a student in an organized health care education/training program with a practice address in Woodland Hills, California, and NPI 1497999809, issued on Apr 29, 2009. Check the license with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Joshua James Istrin
- Credential
- R.D.
- Primary taxonomy
- Student in an Organized Health Care Education/Training Program 390200000X
- Practice location
- 5601 DE Soto Ave, Woodland Hills, CA 91367
- Phone
- (818) 719-4828
- Enumerated
- Apr 29, 2009
- Record last updated
- Dec 7, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190315000801); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest student in an organized health care education/training program records → All 40,652 in California → Look up another NPI →
Also registered at 5601 DE Soto Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Houry Abajian, PHARM.D.Pharmacist1235297383
- Cecille Abeleda, RCP, RRTRegistered Respiratory Therapist1316424872
- Sunitha AbrahamCertified Respiratory Therapist1114409679
- Arineh AbramPharmacist1760108401
- Stephano Abusleme, DOStudent in an Organized Health Care Education/Training Program1538747639
- Ani Adamian, PHARM DPharmacist1043841851
Verify Joshua James Istrin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
25.6 times the Medicare Part D claims of the average student in an organized health care education/training program in 2024
4,727 Medicare Part D claims for 743 beneficiaries, against an average of 185 among the 59,748 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 90 claims were for opioids.
Most prescribed
- Atorvastatin Calcium448 claims
- Rosuvastatin Calcium231 claims
- Lisinopril190 claims
- Levothyroxine Sodium173 claims
- Metformin Hcl Er171 claims
- Losartan Potassium142 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
- Southern California Permanente Medical GroupVentura, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joshua James Istrin among 40,652 student in an organized health care education/training program records in California
Joshua James Istrin, R.D. is one of 40,652 student in an organized health care education/training program records with a practice address in California. 16% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 2% of them.
- NPI issued2009 · 2% of these records are older, 97% newer
- In a Medicare fileYes · 16% of these records are
- In the CMS Doctors and Clinicians fileYes · 6% of these records are
- Graduated2015 · median 2017 among the 2,409 with a school on file
- Record last updated2021 · 26% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 390200000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
81 student in an organized health care education/training program records list a practice address in Woodland Hills
They are 81 of the 4,455 NPPES records with a practice address in Woodland Hills, and 40,652 student in an organized health care education/training program records in California.
All 40,652 in California → Every provider in Woodland Hills → Student in an Organized Health Care Education/Training Program nationwide →
The 8 student in an organized health care education/training program records with the nearest ZIP codes
- Angela Alessi, M.D.Woodland Hills, CA 913671811288004
- Shahrzad Lalezari, D.O.Woodland Hills, CA 913671336559038
- Farzin Levihaim, M.D.Woodland Hills, CA 913671114266798
- Takako Mukai, MDWoodland Hills, CA 913671366602427
- Kaori NakasoneWoodland Hills, CA 913671669730420
- Roberta Obadia, M.D.Woodland Hills, CA 913671780943605
- Kwasi Osei, M.D.Woodland Hills, CA 913671275826281
- Susan RosenthalWoodland Hills, CA 913671376951764
Common questions
What is Joshua James Istrin, R.D.'s NPI number?
Joshua James Istrin, R.D.'s National Provider Identifier (NPI) is 1497999809, issued on Apr 29, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Joshua James Istrin, R.D. located?
The NPPES record lists a practice address at 5601 DE Soto Ave, Woodland Hills, CA, 91367. Phone: (818) 719-4828. Providers update this record themselves, so call before visiting.
How can I verify Joshua James Istrin, R.D.'s license?
Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Joshua James Istrin, R.D. prescribe under Medicare Part D?
In 2024, Joshua James Istrin, R.D. had 4,727 Medicare Part D claims for 743 beneficiaries; the average among student in an organized health care education/training program prescribers was 185. 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.