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2026 NPPES data Specialist NPI 1629078845 M.D.
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Sima Yaftali, M.D.

Specialist in Thousand Oaks, California.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 69,567 in Specialist, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
3K
Medicare Part D claims · 338 beneficiaries · Specialist avg: 2K
MIPS score
10.8/100
▼ 73 pts below national avg 83.5 · Penalty band
Industry payments
$56.83
3 payments · CMS Open Payments (Sunshine Act)
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Sima Yaftali, M.D. reported a CMS MIPS final score of 10.8/100 - below the 83.5 national average - and filed 3,452 Medicare Part D claims in 2024.

10.8/100
MIPS score · -73 vs avg
3K
Part D claims, 2024
$56.83
industry payments (Sunshine Act)
≥2nd
pct among measured MIPS (lower-bound band)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.

Federal trust snapshot

What official records show about Sima Yaftali, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1629078845), first enumerated 07/29/2005.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 3,452 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 10.8/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • Reported

    Industry payment transparency

    $56.83 in reported industry payments (3 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.

    Source: CMS Open Payments

  • State context

    State board disciplinary context

    California statewide board action statistics are published annually — these figures describe aggregate state activity, not Sima Yaftali, M.D.'s individual license status. Verify directly with the state medical board.

    Source: MBC annual report 2023

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1629078845 · Specialist

NPI-10 · ENUM-LEGACY · TAX-MEGA · MIPS-LOW · RX-MID · BOOK-MID · PHOTO-FINISH

  • NPI-10 1629078845
  • ENUM-LEGACY 2005
  • TAX-MEGA 70K Specialist
  • MIPS-LOW 10.8/100
  • RX-MID 3,452
  • BOOK-MID 6,640 in California
  • PHOTO-FINISH Alfonso Ciervo · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Sima Yaftali, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

11 ≥ 2nd percentile 2% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). This entry sits in this band. 20–30: 3,069 measured providers (1%). Above this entry. 30–40: 2,746 measured providers (1%). Above this entry. 40–50: 2,928 measured providers (1%). Above this entry. 50–60: 5,882 measured providers (1%). Above this entry. 60–70: 13,906 measured providers (3%). Above this entry. 70–80: 94,570 measured providers (21%). Above this entry. 80–90: 129,887 measured providers (29%). Above this entry. 90+: 189,403 measured providers (42%). Above this entry. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured providers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Sima Yaftali, M.D. sits

This provider among specialist peers

Across the 4,261 specialist providers who report both Medicare Part D prescribing and a MIPS quality score, Sima Yaftali, M.D. writes more Part D claims than 84% of them and scores higher on MIPS quality than 8% - placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 0Sima Yaftali, M.D., Part D claim volume, percentile in specialty: 84 · MIPS quality, percentile: 8
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one specialist peer from a representative sample of 60; the gold marker is Sima Yaftali, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

What does the federal data show about Sima Yaftali, M.D.?

Below national average

NPI registry status

Active

Issued 07/29/2005

NPI 1629078845

Primary specialty

Specialist

High-volume

69,567 US NPIs in this specialty

Medicare Part D claims

3,452 127% vs specialty avg

2024 prescription claims

Specialty avg: 1,524

MIPS final score

10.8/100 72.7 pts vs avg

Penalty band band

vs 83.5 national avg

Specialty distribution in California

How Specialist compares to other specialties among California providers

California providers
Behavior Technician17.9%Marriage & Family Therapist5.4%Student in an Organized Heal…5.1%Mental Health Counselor3.7%Pharmacist3.4%Clinical Social Worker3.1%Specialist0.7%
Largest specialties in California (% of in-state providers)

Medicare quality performance, MIPS

Sima Yaftali, M.D.'s 2023 MIPS final score plotted against the Specialist national average

Below national average
MIPS Final Score
10.8/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%10.8%
MIPS final score (Specialist) - 10.8/100 vs national avg 83.5
How MIPS and board certification work

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

Practice Address

3180 WILLOW LN
Thousand Oaks, CA 91361
(805) 497-3239

Provider Details

NPI 1629078845
Specialty Specialist
Credentials M.D.
Gender Female
NPI Issued 07/29/2005

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

10.7973
Final Score
Measured-score avg: 83.5
0
Quality
35.9909
Cost

Reporting: Individual

Hospital and facility affiliations

Facilities where Sima Yaftali, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

Conejo Medical And Breast Care Center A Medical Corporation
Thousand Oaks, CA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) - CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Sima Yaftali, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$57

Largest payer

Lilly USA, LLC

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context - California MBC 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 - they are NOT specific to Sima Yaftali, M.D.. To verify Sima Yaftali, M.D.'s current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2024.

3,452
Total Claims
$183K
Total Drug Cost
338
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,452.167
Total Day Supply
219,128
Generic Drug Cost
$40K
Opioid Claims
13 (0.4% rate)
Antibiotic Claims
63

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
0.90
Gender Split
65% female / 35% male
Age Distribution
<65: 0, 65-74: 183, 75-84: 115, 85+: 40

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Sima Yaftali, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Atorvastatin Calcium
 438
Levothyroxine Sodium
 213
Losartan Potassium
 189
Lisinopril
 152
Rosuvastatin Calcium
 124
Amlodipine Besylate
 116
Sertraline Hcl
 89
Alprazolam
 85
Losartan-Hydrochlorothiazide
Losartan/Hydrochlorothiazide
82
Metformin Hcl Er
Metformin Hcl
82

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

More Specialist in CA → All providers in California → Compare specialties →

Specialist Overview

How Sima Yaftali, M.D. fits within the Specialist landscape nationally.

69,567
Specialist Providers in US
55
States with Specialist
1,524
Avg Claims per Provider

Sima Yaftali, M.D.'s 3,452 claims are above the specialty average of 1,524.

Nationwide Specialist peers with similar MIPS or enrollment year

Two federal-record peer sets for Yaftali, both outside California so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (10.8 here).

Alfonso Ciervo 10.8 NJ Lonny Matlick 10.8 NJ Robert Dematteo 10.7 NY David Templin 10.6 TX

Same NPPES enumeration year (2005)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Keke Uzokwe Oak Park, IL Deogracia Quinones Fort Bragg, NC Donald Morris New York, NY Richard Kraus York, PA

Nearby Specialist Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Yaftali.

One of 6,640 Specialist providers enrolled in California, 5 are shown here.

Adrienne Abad Santos
San Francisco, CA
Dr. Brenda Abarca
MD
Torrance, CA
Fatemeh Abbasi
PT
Van Nuys, CA
Dr. Erlinda Abcede
M.D.
Cudahy, CA
Dr. Maher Abdallah
M.D.
Palm Springs, CA

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is Sima Yaftali, M.D.'s specialty? ▼
Sima Yaftali, M.D. specializes in Specialist and practices in Thousand Oaks, California. Credentials: M.D..
How much does Sima Yaftali, M.D. prescribe under Medicare Part D? ▼
In 2024, Sima Yaftali, M.D. wrote 3,452 Medicare Part D claims totaling $183K in drug costs for 338 beneficiaries.
What is Sima Yaftali, M.D.'s Medicare quality score? ▼
Sima Yaftali, M.D. has a CMS MIPS Final Score of 10.8/100 (Quality: 0, Cost: 36). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sima Yaftali, M.D. located? ▼
Sima Yaftali, M.D. is located at 3180 WILLOW LN, Thousand Oaks, CA, 91361. Phone: (805) 497-3239.
What is Sima Yaftali, M.D.'s NPI number? ▼
Sima Yaftali, M.D.'s National Provider Identifier (NPI) is 1629078845, issued on 07/29/2005.
Does Sima Yaftali, M.D. prescribe opioids? ▼
Yes, Sima Yaftali, M.D. had 13 opioid claims in 2024 with an opioid prescribing rate of 0.4%.
How many Specialist providers are there in the US? ▼
There are 69,567 Specialist providers across 55 states in the US. The average Specialist provider writes 1,524 Medicare Part D claims per year.
What drugs does Sima Yaftali, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Sima Yaftali, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sima Yaftali, M.D. accept Medicare? ▼
Sima Yaftali, M.D. appears in CMS Medicare data with 3,452 Part D claims and 338 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sima Yaftali, M.D.'s credentials? ▼
Sima Yaftali, M.D.'s NPI is 1629078845 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

View source datasets and methodology notes
Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of August 2026 (NPPES) / 2024 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.