2026 NPPES data Anesthesiology Physician NPI 1730316548 M.D.
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Nadiv Samimi, M.D.

Anesthesiology Physician in Los Angeles, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
988
Medicare Part D claims · 170 beneficiaries · Anesthesiology Physician avg: 860
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 83 pts below national avg 83.1 · Penalty band
Industry payments
$396.54
9 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

Nadiv Samimi, M.D. reported a CMS MIPS final score of 0/100 — below the 83.1 national average — and filed 988 Medicare Part D claims in 2023.

0/100
MIPS score · -83 vs avg
988
Part D claims, 2023
89%
generic prescribing
Likely
board-certified (heuristic)

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.

Nadiv Samimi, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

0 0th percentile higher than 0% of 477,587 scored providers

0–10: 8,684 scored providers (2%). This entry sits in this band. 10–20: 3,008 scored providers (1%). Above this entry. 20–30: 3,069 scored providers (1%). Above this entry. 30–40: 2,746 scored providers (1%). Above this entry. 40–50: 2,928 scored providers (1%). Above this entry. 50–60: 5,882 scored providers (1%). Above this entry. 60–70: 13,906 scored providers (3%). Above this entry. 70–80: 118,074 scored providers (25%). Above this entry. 80–90: 129,887 scored providers (27%). Above this entry. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored 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.

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

Where Nadiv Samimi, M.D. sits

This provider among anesthesiology physician peers

Across the 1,666 anesthesiology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Nadiv Samimi, M.D. writes more Part D claims than 61% of them and scores higher on MIPS quality than 0% — placing this provider in the high-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Part D claim volume vs MIPS quality, by specialty percentile

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality0255075100024.148.372.496.6Part D claim volume — percentile in specialtyMIPS quality — percentile
Part D claim volume vs MIPS quality, by specialty percentile

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

Board certification likely (heuristic — not verified)

Nadiv Samimi, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about Nadiv Samimi, M.D.?

Below national average

NPI registry status

Active

Issued 06/18/2009

NPI 1730316548

Primary specialty

Anesthesiology Physician

High-volume

56,398 US NPIs in this specialty

Medicare Part D claims

988 15% vs specialty avg

2023 prescription claims

Specialty avg: 860

MIPS final score

0/100 83.1 pts vs avg

Penalty band band

vs 83.1 national avg

Specialty distribution in California

How Anesthesiology Physician compares to other specialties among California providers

California providers

Largest specialties in California (% of in-state providers)

Behavior Technician17.3%Marriage & Family Therapist5.5%Student in an Organized Health Care Education/Training Program5%Mental Health Counselor3.9%Pharmacist3.5%Clinical Social Worker3.1%Anesthesiology Physician0.8%
Largest specialties in California (% of in-state providers)

Medicare quality performance — MIPS

Nadiv Samimi, M.D.'s 2023 MIPS final score plotted against the Anesthesiology Physician national average

Below national average
MIPS Final Score
0/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Anesthesiology Physician) — 0/100 vs national avg 83.1

0%100%National avg83%0%
MIPS final score (Anesthesiology Physician) — 0/100 vs national avg 83.1

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).

Nadiv Samimi, M.D. appears in the CMS NPPES registry as a Anesthesiology Physician provider holding M.D. credentials at 1964 WESTWOOD BLVD, Los Angeles, CA, 90025, with a listed phone of (310) 856-9488. NPI 1730316548 was issued on 06/18/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Samimi most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 988 prescription claims written by this provider, covering 170 Medicare beneficiaries and totaling roughly $136K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 31.8%. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 0/100 for the 2023 performance year (Quality 0), compared with the national average of 83.1.

Anesthesiology Physician is a high-volume specialty nationwide, with 56,398 enrolled providers across 56 states and an average of 860 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1964 WESTWOOD BLVD
Los Angeles, CA 90025

Provider Details

NPI 1730316548
Specialty Anesthesiology Physician
Credentials M.D.
Gender Male
NPI Issued 06/18/2009

CMS Quality Score (MIPS)

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

0
Final Score
Avg: 83.1
0
Quality

Reporting: Individual

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 Nadiv Samimi, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$397

Largest payer

SPR Therapeutics, Inc

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 Nadiv Samimi, M.D.. To verify Nadiv Samimi, 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.

Brand vs generic prescribing mix · Typical

Nadiv Samimi, M.D. — brand share 11.0%
Anesthesiology Physician average

11% brand-name claims vs 89% generic, on 988 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

988
Total Claims
$136K
Total Drug Cost
170
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,228
Total Day Supply
34,050
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$94K
Generic Drug Cost
$43K
Opioid Claims
314 (31.8% rate)

Patient Demographics

Average Patient Age
72.0 years
Avg HCC Risk Score
1.41
Gender Split
67% female / 33% male
Age Distribution
<65: 24, 65-74: 77, 75-84: 55, 85+: 14

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Nadiv Samimi, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Tramadol Hcl
138
Tizanidine Hcl
80
Celecoxib
77
Gabapentin
70
Pregabalin
50
Belbuca
Buprenorphine Hcl
45
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
40
Quetiapine Fumarate
30
Cyclobenzaprine Hcl
25
Duloxetine Hcl
21

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

Anesthesiology Physician Overview

How Nadiv Samimi, M.D. fits within the Anesthesiology Physician landscape nationally.

56,398
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider

Nadiv Samimi, M.D.'s 988 claims are above the specialty average of 860.

Nearby Anesthesiology Physician Providers in California

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

Compare Anesthesiology Physician nationally: see state-by-state distribution →

Before you book an appointment

Use this federal record as your verification checklist, not as a recommendation.

  • Confirm the NPI record is current in the official CMS registry — providers update their own NPPES details, and moves can lag. Verify this NPI
  • Check the active license and any disciplinary history with the California medical board — federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Anesthesiology Physician peer on Medicare volume and prescribing patterns. Compare providers

Medicare Part D and MIPS figures describe practice patterns in federal programs only — they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.

Frequently Asked Questions

What is Nadiv Samimi, M.D.'s specialty?
Nadiv Samimi, M.D. specializes in Anesthesiology Physician and practices in Los Angeles, California. Credentials: M.D..
How much does Nadiv Samimi, M.D. prescribe under Medicare Part D?
In 2023, Nadiv Samimi, M.D. wrote 988 Medicare Part D claims totaling $136K in drug costs for 170 beneficiaries.
What is Nadiv Samimi, M.D.'s Medicare quality score?
Nadiv Samimi, M.D. has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Nadiv Samimi, M.D. located?
Nadiv Samimi, M.D. is located at 1964 WESTWOOD BLVD, Los Angeles, CA, 90025. Phone: (310) 856-9488.
What is Nadiv Samimi, M.D.'s NPI number?
Nadiv Samimi, M.D.'s National Provider Identifier (NPI) is 1730316548, issued on 06/18/2009.
Does Nadiv Samimi, M.D. prescribe more brand-name or generic drugs?
Nadiv Samimi, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $94K in brand drug costs.
Does Nadiv Samimi, M.D. prescribe opioids?
Yes, Nadiv Samimi, M.D. had 314 opioid claims in 2023 with an opioid prescribing rate of 31.8%.
How many Anesthesiology Physician providers are there in the US?
There are 56,398 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does Nadiv Samimi, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Nadiv Samimi, M.D.'s most frequently prescribed drugs include Tramadol Hcl, Tizanidine Hcl, Celecoxib. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nadiv Samimi, M.D. accept Medicare?
Nadiv Samimi, M.D. appears in CMS Medicare data with 988 Part D claims and 170 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nadiv Samimi, M.D.'s credentials?
Nadiv Samimi, M.D.'s NPI is 1730316548 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

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 (2023). 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 April 2026 (NPPES) / 2023 (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