Rebecca Loren Weiss, B.S., B.A.
Endocrinology, Diabetes & Metabolism Physician · Woodland Hills, CA
Rebecca Loren Weiss, B.S., B.A. is an endocrinology, diabetes & metabolism physician with a practice address in Woodland Hills, California, and NPI 1912272055, issued on Mar 21, 2012. Check the license (California A128395, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Rebecca Loren Weiss
- Credential
- B.S., B.A.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- A128395 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5601 DE Soto Ave, Woodland Hills, CA 91367
- Phone
- (818) 719-4400
- Enumerated
- Mar 21, 2012
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20171006001382); accepts Medicare assignment
- Medical or professional school
- University Of Kansas School Of Med (Kc/Wich/Sal), 2012
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 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 Rebecca Loren Weiss in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A128395Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
3,330 Medicare Part D claims for 569 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Levothyroxine Sodium598 claims
- Nano 2nd Gen Pen Needle231 claims
- Ozempic196 claims
- Methimazole162 claims
- Insulin Glargine-Yfgn155 claims
- Jardiance146 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: $136.65
2 payments; by number, the most common kind was food and beverage; the largest payer was Tandem Diabetes Care, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 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
- Southern California Permanente Medical GroupWoodland Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Rebecca Loren Weiss among 1,131 endocrinology, diabetes & metabolism physician records in California
Rebecca Loren Weiss, B.S., B.A. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 74% of them.
- NPI issued2012 · 74% of these records are older, 23% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2012 · median 2003 among the 779 with a school on file
- Record last updated2021 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Woodland Hills → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Sima Hassani, MDWoodland Hills, CA 913671093863896
- Mingfei Luo, M.D.Woodland Hills, CA 913671437318474
- Maryam Sharifi, MDWoodland Hills, CA 913671407086580
- Alexander Tyan, MDWoodland Hills, CA 913671154784544
- Ian Yip, MDWoodland Hills, CA 913671770503955
- Frederick Ziel, MDWoodland Hills, CA 913671710046479
- Sarfraz Zaidi, MDThousand Oaks, CA 913621427157536
- Jennifer Siani, M.D.Westlake Village, CA 913611649613761
Common questions
What is Rebecca Loren Weiss, B.S., B.A.'s NPI number?
Rebecca Loren Weiss, B.S., B.A.'s National Provider Identifier (NPI) is 1912272055, issued on Mar 21, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Rebecca Loren Weiss, B.S., B.A. located?
The NPPES record lists a practice address at 5601 DE Soto Ave, Woodland Hills, CA, 91367. Phone: (818) 719-4400. Providers update this record themselves, so call before visiting.
How can I verify Rebecca Loren Weiss, B.S., B.A.'s license?
NPPES lists California license number A128395, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Rebecca Loren Weiss, B.S., B.A. prescribe under Medicare Part D?
In 2024, Rebecca Loren Weiss, B.S., B.A. had 3,330 Medicare Part D claims for 569 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. 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.