Sima Yaftali, M.D.
Specialist · Thousand Oaks, CA
Sima Yaftali, M.D. is a specialist with a practice address in Thousand Oaks, California, and NPI 1629078845, issued on Jul 29, 2005. Check the license (California A41849, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sima Yaftali
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- A41849 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3180 Willow LN, Thousand Oaks, CA 91361
- Phone
- (805) 497-3239
- Enumerated
- Jul 29, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (805) 497-3110
- Medicare enrollment
- Enrolled (PECOS I20050404000591); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 3180 Willow LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christine Farrell, MSN FNP-CFamily Nurse Practitioner1215197033
- Rosemary Flores, M.D.Specialist1871593095
- Robert Ghaussy, M.D.Specialist1053311274
Verify Sima Yaftali in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A41849Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.5 times the Medicare Part D claims of the average specialist in 2024
3,452 Medicare Part D claims for 338 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. 13 claims were for opioids.
Most prescribed
- Atorvastatin Calcium438 claims
- Levothyroxine Sodium213 claims
- Losartan Potassium189 claims
- Lisinopril152 claims
- Rosuvastatin Calcium124 claims
- Amlodipine Besylate116 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.
The MIPS final score for 2023 (Medicare payment program): 10.8 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $56.83
3 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 5,844 providers of this specialty with any payment received $4,760.79 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
- Conejo Medical And Breast Care Center A Medical CorporationThousand Oaks, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sima Yaftali among 5,749 specialist records in California
Sima Yaftali, M.D. is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1982 · median 1989 among the 1,075 with a school on file
- Record last updated2026 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 specialist records list a practice address in Thousand Oaks
They are 25 of the 2,434 NPPES records with a practice address in Thousand Oaks, and 5,749 specialist records in California.
All 5,749 in California → Every provider in Thousand Oaks → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Neeta Ambe-Crain, M.D.Westlake Village, CA 913611093832255
- Michael Bastien, MDWestlake Village, CA 913611053371096
- Randolph Capri, MDWestlake Village, CA 913611750340345
- Gary Carlson, MDWestlake Village, CA 913611144280181
- Glenn Cohen, M.D.Westlake Village, CA 913611881755056
- John Darin, M.D.Westlake Village, CA 913611902801764
- Kenneth Diddie, M.D.Westlake Village, CA 913611184684219
- Rosemary Flores, M.D.Thousand Oaks, CA 913611871593095
Common questions
What is Sima Yaftali, M.D.'s NPI number?
Sima Yaftali, M.D.'s National Provider Identifier (NPI) is 1629078845, issued on Jul 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Sima Yaftali, M.D. located?
The NPPES record lists a practice address at 3180 Willow LN, Thousand Oaks, CA, 91361. Phone: (805) 497-3239. Providers update this record themselves, so call before visiting.
How can I verify Sima Yaftali, M.D.'s license?
NPPES lists California license number A41849, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sima Yaftali, M.D. prescribe under Medicare Part D?
In 2024, Sima Yaftali, M.D. had 3,452 Medicare Part D claims for 338 beneficiaries; the average among specialist prescribers was 1,380. Part D covers Medicare prescriptions only.
What is Sima Yaftali, M.D.'s MIPS final score?
The 2023 MIPS final score is 10.8 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.