Richard Michael Treger, M.D.
Nephrology Physician · Sylmar, CA
Richard Michael Treger, M.D. is a nephrology physician with a practice address in Sylmar, California, and NPI 1194922625, issued on Jun 28, 2007. Check the license (California A83636, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Richard Michael Treger
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A83636 CA
Self-reported in NPPES; status is on the state search - Practice location
- 14445 Olive View Dr, Sylmar, CA 91342
- Phone
- (818) 365-3205
- Enumerated
- Jun 28, 2007
- Record last updated
- Nov 1, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200921001486); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 14445 Olive View Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nasser Abdo, MDInternal Medicine Physician1306911649
- Gezman Abdullahi, M.D.Internal Medicine Physician1225394380
- Moyosore Abere, NPNurse Practitioner1225667314
- Ammini Abraham, MDAnesthesiology Physician1467531541
- Margarita Acosta, RN, AGACNPAcute Care Nurse Practitioner1609202415
- Fredric Adler, MDInternal Medicine Physician1356376735
Verify Richard Michael Treger in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A83636Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
82% more Medicare Part D claims than the average nephrology physician in 2024
2,666 Medicare Part D claims for 267 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims.
Most prescribed
- Atorvastatin Calcium329 claims
- Amlodipine Besylate231 claims
- Losartan Potassium191 claims
- Lisinopril142 claims
- Furosemide113 claims
- Carvedilol74 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: $29.70
1 payment: food and beverage; the largest payer was Travere Therapeutics, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 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.
Richard Michael Treger among 1,468 nephrology physician records in California
Richard Michael Treger, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 35% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated2001 · median 2001 among the 1,128 with a school on file
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in California
There are 1,468 nephrology physician records in California.
All 1,468 in California → Every provider in Sylmar → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Reebu Kohli, M.D.Sylmar, CA 913421003068321
- Phuong Chi Pham, MDSylmar, CA 913421770500316
- David Taylor, M.D.Sylmar, CA 913421871712513
- Vinod Assomull, MDGranada Hills, CA 913441982619359
- Jeffrey Chow, DOGranada Hills, CA 913441285124222
- Anant Desai, MDGranada Hills, CA 913441871500389
- Kalyani Mehta, MDGranada Hills, CA 913441699899724
- Omaran Abdeen, M.D.Mission Hills, CA 913451700878410
Common questions
What is Richard Michael Treger, M.D.'s NPI number?
Richard Michael Treger, M.D.'s National Provider Identifier (NPI) is 1194922625, issued on Jun 28, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Richard Michael Treger, M.D. located?
The NPPES record lists a practice address at 14445 Olive View Dr, Sylmar, CA, 91342. Phone: (818) 365-3205. Providers update this record themselves, so call before visiting.
How can I verify Richard Michael Treger, M.D.'s license?
NPPES lists California license number A83636, 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 Richard Michael Treger, M.D. prescribe under Medicare Part D?
In 2024, Richard Michael Treger, M.D. had 2,666 Medicare Part D claims for 267 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.