NPI registry status
Active
2026 NPPES data Nuclear Medicine Physician NPI 1487780813 MD
Verify on CMS → Louise Thomson, MD
Nuclear Medicine Physician 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 910 in Nuclear Medicine Physician, 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.
MIPS score
75/100
CMS neutral threshold · no category scores published
What the federal data shows
Louise Thomson, MD carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored.
- 75/100
- CMS neutral score · not measured
- Likely
- board-certified (heuristic)
- #211
- Nuclear Medicine Physician rank among California specialties
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 Louise Thomson, MD
Federal registry listing with board-eligibility signals — verify credentials with the state medical board before clinical decisions.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1487780813), first enumerated 02/27/2007.
Source: CMS NPPES
- Not in federal data
Medicare Part D participation
No 2023 Medicare Part D prescribing volume appears in the CMS public file for this NPI (may reflect specialty, new enrollment, or non-prescribing role).
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
CMS assigned a neutral MIPS final score of 75/100 where no performance category was scored — not a measured quality rank.
Source: CMS Quality Payment Program
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
California statewide board action statistics are published annually — these figures describe aggregate state activity, not Louise Thomson, MD'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 1487780813 · Nuclear Medicine Physician
NPI-10 · ENUM-MID · TAX-NARROW · MIPS-NEUTRAL · BOOK-THIN · PHOTO-ENUM
- NPI-10 1487780813
- ENUM-MID 2007
- TAX-NARROW 910
- MIPS-NEUTRAL 75/100
- BOOK-THIN 176 in California
- PHOTO-ENUM Nancy Youssef, MD · 2007
✓
Board certification likely (heuristic, not verified)
Louise Thomson, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 Louise Thomson, MD?
CMS neutral score, not measuredPrimary specialty
Nuclear Medicine Physician
MIPS final score
75/100
Specialty distribution in California
How Nuclear Medicine Physician compares to other specialties among California providers
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
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
Provider Details
| NPI | 1487780813 |
|---|---|
| Specialty | Nuclear Medicine Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 02/27/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
CMS neutral threshold · not measured
Reporting: Group practice
Hospital and facility affiliations
Facilities where Louise Thomson, MD 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.
Cedars-Sinai Imaging Medical Group A Professional Corporation
West Hollywood, CA
Cedars-Sinai Medical Care Foundation
West Hollywood, 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).
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 Louise Thomson, MD. To verify Louise Thomson, MD'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.
Nuclear Medicine Physician Overview
How Louise Thomson, MD fits within the Nuclear Medicine Physician landscape nationally.
910
Nuclear Medicine Physician Providers in US
48
States with Nuclear Medicine Physician
858
Avg Claims per Provider
Nationwide Nuclear Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Thomson, both outside California so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (75 here).
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nuclear Medicine Physician Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Thomson.
One of 176 Nuclear Medicine Physician providers enrolled in California, 5 are shown here.
Dr. Fabio Almeida
M.D.
Roseville, CA
Dr. Nelson Arnstein
MD
Bellflower, CA
Dr. Geetha Ashok
MD
Panorama City, CA
Dr. Charles Barnett
M.D.
Mather, CA
Dr. Ernest Belezzuoli
M.D.
San Diego, CA
Compare Nuclear Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Louise Thomson, MD's specialty? ▼
Louise Thomson, MD specializes in Nuclear Medicine Physician and practices in Los Angeles, California. Credentials: MD.
What is Louise Thomson, MD's Medicare quality score? ▼
Louise Thomson, MD has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. 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 Louise Thomson, MD located? ▼
Louise Thomson, MD is located at 8700 BEVERLY BLVD, Los Angeles, CA, 90048. Phone: (310) 423-8000.
What is Louise Thomson, MD's NPI number? ▼
Louise Thomson, MD's National Provider Identifier (NPI) is 1487780813, issued on 02/27/2007.
How many Nuclear Medicine Physician providers are there in the US? ▼
There are 910 Nuclear Medicine Physician providers across 48 states in the US. The average Nuclear Medicine Physician provider writes 858 Medicare Part D claims per year.
Does Louise Thomson, MD accept Medicare? ▼
Louise Thomson, MD appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Louise Thomson, MD's credentials? ▼
Louise Thomson, MD's NPI is 1487780813 with credentials MD. 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.
- 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
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.