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2026 NPPES data Specialist NPI 1801002969 M.D.
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Alexander Simopoulos, M.D.

Specialist in Los Angeles, 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
43
Medicare Part D claims · 17 beneficiaries · Specialist avg: 2K
MIPS score
95.2/100
▲ 12 pts above national avg 83.5 · Exceptional
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Alexander Simopoulos, M.D. reported a CMS MIPS final score of 95.2/100 - above the 83.5 national average - and filed 43 Medicare Part D claims in 2024.

95.2/100
MIPS score · +12 vs avg
43
Part D claims, 2024
≥78th
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 Alexander Simopoulos, 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 1801002969), first enumerated 05/15/2007.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 43 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 95.2/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • State context

    State board disciplinary context

    California statewide board action statistics are published annually — these figures describe aggregate state activity, not Alexander Simopoulos, 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 1801002969 · Specialist

NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ELITE · RX-TRACE · BOOK-MID · PHOTO-FINISH

  • NPI-10 1801002969
  • ENUM-MID 2007
  • TAX-MEGA 70K Specialist
  • MIPS-ELITE 95.2/100
  • RX-TRACE 43
  • BOOK-MID 6,640 in California
  • PHOTO-FINISH Peter Capicotto · ±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

Alexander Simopoulos, 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.

95 ≥ 78th percentile 78% 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%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. 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 Alexander Simopoulos, 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, Alexander Simopoulos, M.D. writes more Part D claims than 7% of them and scores higher on MIPS quality than 78% - placing this provider in the lower-volume, high-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: 77 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 62Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 77Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 47 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 88Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 35Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 75Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 0Alexander Simopoulos, M.D., Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 78
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 Alexander Simopoulos, 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 Alexander Simopoulos, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 05/15/2007

NPI 1801002969

Primary specialty

Specialist

High-volume

69,567 US NPIs in this specialty

Medicare Part D claims

43 97% vs specialty avg

2024 prescription claims

Specialty avg: 1,524

MIPS final score

95.2/100 11.7 pts vs avg

Exceptional 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

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

High performer (top quartile)
MIPS Final Score
95.2/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%95.2%
MIPS final score (Specialist) - 95.2/100 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

9201 W SUNSET BLVD
Los Angeles, CA 90069
(310) 859-9052

Provider Details

NPI 1801002969
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 05/15/2007

CMS Quality Score (MIPS)

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

95.1827
Final Score
Measured-score avg: 83.5
70.3653
Quality

Reporting: Group practice

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 Alexander Simopoulos, M.D.. To verify Alexander Simopoulos, 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.

43
Total Claims
$3K
Total Drug Cost
17
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
43.867
Total Day Supply
1,234
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
63.9 years
Avg HCC Risk Score
0.97
More Specialist in CA → All providers in California → Compare specialties →

Specialist Overview

How Alexander Simopoulos, M.D. fits within the Specialist landscape nationally.

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

Alexander Simopoulos, M.D.'s 43 claims are below the specialty average of 1,524.

Nationwide Specialist peers with similar MIPS or enrollment year

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

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (95.2 here).

Ann Amukele 95.2 DC Peter Capicotto 95.2 NY Beth Lertzman 95.2 NY Leoncio Tacsa 95.2 NJ

Same NPPES enumeration year (2007)

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

Janet Talmadge Naperville, IL Anna Carlson Walla Walla, WA Kathleen Emerick Vandalia, IL Litzy Alvarado Ponce, PR

Nearby Specialist Providers in California

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

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 Alexander Simopoulos, M.D.'s specialty? ▼
Alexander Simopoulos, M.D. specializes in Specialist and practices in Los Angeles, California. Credentials: M.D..
How much does Alexander Simopoulos, M.D. prescribe under Medicare Part D? ▼
In 2024, Alexander Simopoulos, M.D. wrote 43 Medicare Part D claims totaling $3K in drug costs for 17 beneficiaries.
What is Alexander Simopoulos, M.D.'s Medicare quality score? ▼
Alexander Simopoulos, M.D. has a CMS MIPS Final Score of 95.2/100 (Quality: 70.4). 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 Alexander Simopoulos, M.D. located? ▼
Alexander Simopoulos, M.D. is located at 9201 W SUNSET BLVD, Los Angeles, CA, 90069. Phone: (310) 859-9052.
What is Alexander Simopoulos, M.D.'s NPI number? ▼
Alexander Simopoulos, M.D.'s National Provider Identifier (NPI) is 1801002969, issued on 05/15/2007.
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.
Does Alexander Simopoulos, M.D. accept Medicare? ▼
Alexander Simopoulos, M.D. appears in CMS Medicare data with 43 Part D claims and 17 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Alexander Simopoulos, M.D.'s credentials? ▼
Alexander Simopoulos, M.D.'s NPI is 1801002969 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.