Erwinn Martin C. Sistoza, M.D.
Geriatric Medicine (Internal Medicine) Physician · Los Angeles, CA
Erwinn Martin C. Sistoza, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Los Angeles, California, and NPI 1285858530, issued on Apr 11, 2007. Check the license (California A76101, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Erwinn Martin C. Sistoza
- Credential
- M.D.
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- A76101 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1711 W Temple St, Los Angeles, CA 90026
- Phone
- (213) 989-6100
- Enumerated
- Apr 11, 2007
- Record last updated
- Feb 22, 2008 (not updated in 18 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20071023000816); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 532 in California → Look up another NPI →
Also registered at 1711 W Temple St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katayoun AbtinPodiatrist1437654589
- Carlos Acevedo, LVNLicensed Vocational Nurse1952061582
- Samuel Agra, M.D.Specialist1598719791
- Yvonne Alanes, M.DSpecialist1437196250
- Vincent Anthony, M.D., M.P.H.Nephrology Physician1396851903
- Pinky Jane Biag, RNRegistered Nurse1063066140
Verify Erwinn Martin C. Sistoza in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A76101Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024
4,148 Medicare Part D claims for 352 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 53 claims were for opioids.
Most prescribed
- Atorvastatin Calcium338 claims
- Amlodipine Besylate273 claims
- Levothyroxine Sodium192 claims
- Lisinopril146 claims
- Metformin Hcl112 claims
- Losartan Potassium110 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
- Cedars-Sinai Medical Care FoundationBeverly Hills, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Erwinn Martin C. Sistoza among 532 geriatric medicine (internal medicine) physician records in California
Erwinn Martin C. Sistoza, M.D. is one of 532 geriatric medicine (internal medicine) physician records with a practice address in California. 77% 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 54% of them.
- NPI issued2007 · 54% of these records are older, 34% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated1993 · median 1999 among the 271 with a school on file
- Record last updated2008 · 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 207RG0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in California
There are 532 geriatric medicine (internal medicine) physician records in California.
All 532 in California → Every provider in Los Angeles → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Seung Ho Choi, M.D.Los Angeles, CA 900261932145992
- Jo Pullen, MDLos Angeles, CA 900261225005663
- Sharon Chow, MDLos Angeles, CA 900251285900373
- John Hoh, M.D.Los Angeles, CA 900271245384791
- James Templeman, M.D.Los Angeles, CA 900271497059216
- Marcel Filart, MDLos Angeles, CA 900281396775474
- Nouneh Danielyan, M.D.Los Angeles, CA 900291871520726
- Michael Karapetian, M.D.Los Angeles, CA 900291750312427
Common questions
What is Erwinn Martin C. Sistoza, M.D.'s NPI number?
Erwinn Martin C. Sistoza, M.D.'s National Provider Identifier (NPI) is 1285858530, issued on Apr 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Erwinn Martin C. Sistoza, M.D. located?
The NPPES record lists a practice address at 1711 W Temple St, Los Angeles, CA, 90026. Phone: (213) 989-6100. Providers update this record themselves, so call before visiting.
How can I verify Erwinn Martin C. Sistoza, M.D.'s license?
NPPES lists California license number A76101, 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 Erwinn Martin C. Sistoza, M.D. prescribe under Medicare Part D?
In 2024, Erwinn Martin C. Sistoza, M.D. had 4,148 Medicare Part D claims for 352 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.