NPI registry status
Active
2026 NPPES data Infectious Disease Physician NPI 1508068909 M.D.
Verify on CMS → Sylvia Lacourse, M.D.
Infectious Disease Physician in Seattle, Washington.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 8,292 in Infectious Disease 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.
Prescribing volume
266
Medicare Part D claims · 12 beneficiaries · Infectious Disease Physician avg: 816
Generic prescribing
58%
generic claims · 42% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
93.1/100
▲ 10 pts above national avg 83.1 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Sylvia Lacourse, M.D. reported a CMS MIPS final score of 93.1/100 - above the 83.1 national average - and filed 266 Medicare Part D claims in 2023.
- 93.1/100
- MIPS score · +10 vs avg
- 266
- Part D claims, 2023
- 58%
- 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.
Sylvia Lacourse, 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
93 Top 29% higher than 71% of 477,587 scored providers
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 Sylvia Lacourse, M.D. sits
This provider among infectious disease physician peers
Across the 2,276 infectious disease physician providers who report both Medicare Part D prescribing and a MIPS quality score, Sylvia Lacourse, M.D. writes more Part D claims than 40% of them and scores higher on MIPS quality than 71% - placing this provider in the lower-volume, high-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
Each dot is one infectious disease physician peer from a representative sample of 60; the gold marker is Sylvia Lacourse, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Sylvia Lacourse, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - 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 Sylvia Lacourse, M.D.?
High performer (top quartile)Primary specialty
Infectious Disease Physician
Medicare Part D claims
266 67% vs specialty avg
MIPS final score
93.1/100 10 pts vs avg
Specialty distribution in Washington
How Infectious Disease Physician compares to other specialties among Washington providers
Medicare quality performance, MIPS
Sylvia Lacourse, M.D.'s 2023 MIPS final score plotted against the Infectious Disease Physician national average
- MIPS Final Score
- 93.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Infectious Disease Physician) - 93.1/100 vs national avg 83.1
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).
Sylvia Lacourse, M.D. appears in the CMS NPPES registry as a Infectious Disease Physician provider holding M.D. credentials at 325 9TH AVE, Seattle, WA, 98104, with a listed phone of (206) 744-5100. NPI 1508068909 was issued on 06/05/2007.
Medicare Part D records for calendar year 2023 show 266 prescription claims written by this provider, covering 12 Medicare beneficiaries and totaling roughly $306K in drug spend, split 42% brand-name and 58% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 93.1/100 for the 2023 performance year (Quality 74), compared with the national average of 83.1.
Infectious Disease Physician is a mid-sized specialty nationwide, with 8,292 enrolled providers across 54 states and an average of 816 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
Provider Details
| NPI | 1508068909 |
|---|---|
| Specialty | Infectious Disease Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 06/05/2007 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
93.0932
Final Score
Avg: 83.1
73.9573
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Sylvia Lacourse, 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.
The Association OF University Physicians
Seattle, WA
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 - Washington WMC 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 ~34K Washington medical licensees in 2023 - they are NOT specific to Sylvia Lacourse, M.D.. To verify Sylvia Lacourse, M.D.'s current license status, search the WMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
88
Total board actions, Washington 2023
Across 85 cases
2.59
Actions per 1,000 licensees
Washington statewide rate
probation
Most common action type
31 cases
WMC 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 Washington disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Above average
Sylvia Lacourse, M.D. - brand share 42.0%
Infectious Disease Physician average
42% brand-name claims vs 58% generic, on 266 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.
266
Total Claims
$306K
Total Drug Cost
12
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 288
- Total Day Supply
- 8,313
- Brand vs Generic
- 42% brand / 58% generic
- Brand Drug Cost
- $304K
- Generic Drug Cost
- $3K
Patient Demographics
- Average Patient Age
- 64.3 years
- Avg HCC Risk Score
- 1.90
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Sylvia Lacourse, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Tivicay
Tivicay
33 claims
- Descovy
Descovy
25 claims
- Atorvastatin Calcium
Atorvastatin Calcium
24 claims
- Metoprolol Succinate
Metoprolol Succinate
24 claims
- Biktarvy
Biktarvy
20 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
20 claims
- Ibandronate Sodium
Ibandronate Sodium
16 claims
- Furosemide 12
Furosemide
12 claims
| Drug | Claims |
|---|---|
| Tivicay Dolutegravir Sodium | 33 |
| Descovy Emtricitabine/Tenofov Alafenam | 25 |
| Atorvastatin Calcium | 24 |
| Metoprolol Succinate | 24 |
| Biktarvy Bictegrav/Emtricit/Tenofov Ala | 20 |
| Rosuvastatin Calcium | 20 |
| Ibandronate Sodium | 16 |
| Furosemide | 12 |
| Mirtazapine | 12 |
| Pifeltro Doravirine | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Infectious Disease Physician Overview
How Sylvia Lacourse, M.D. fits within the Infectious Disease Physician landscape nationally.
8,292
Infectious Disease Physician Providers in US
54
States with Infectious Disease Physician
816
Avg Claims per Provider
Sylvia Lacourse, M.D.'s 266 claims are below the specialty average of 816.
Nearby Infectious Disease Physician Providers in Washington
Other clinicians with the same primary specialty enrolled in Washington, drawn from the same CMS NPPES roster as Lacourse.
Jan Agosti
Seattle, WA
Dr. Ayesha Appa
MD
Seattle, WA
Dr. Henry Arguinchona
MD
Spokane, WA
Dr. Tara Babu
MD
Seattle, WA
Dr. Neron Balassanian
MD
Bellevue, WA
Compare Infectious Disease 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 Washington medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Infectious Disease 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.
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Frequently Asked Questions
What is Sylvia Lacourse, M.D.'s specialty? ▼
Sylvia Lacourse, M.D. specializes in Infectious Disease Physician and practices in Seattle, Washington. Credentials: M.D..
How much does Sylvia Lacourse, M.D. prescribe under Medicare Part D? ▼
In 2023, Sylvia Lacourse, M.D. wrote 266 Medicare Part D claims totaling $306K in drug costs for 12 beneficiaries.
What is Sylvia Lacourse, M.D.'s Medicare quality score? ▼
Sylvia Lacourse, M.D. has a CMS MIPS Final Score of 93.1/100 (Quality: 74). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Sylvia Lacourse, M.D. located? ▼
Sylvia Lacourse, M.D. is located at 325 9TH AVE, Seattle, WA, 98104. Phone: (206) 744-5100.
What is Sylvia Lacourse, M.D.'s NPI number? ▼
Sylvia Lacourse, M.D.'s National Provider Identifier (NPI) is 1508068909, issued on 06/05/2007.
Does Sylvia Lacourse, M.D. prescribe more brand-name or generic drugs? ▼
Sylvia Lacourse, M.D.'s prescribing is 42% brand-name and 58% generic drugs by claim count, with $304K in brand drug costs.
How many Infectious Disease Physician providers are there in the US? ▼
There are 8,292 Infectious Disease Physician providers across 54 states in the US. The average Infectious Disease Physician provider writes 816 Medicare Part D claims per year.
What drugs does Sylvia Lacourse, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Sylvia Lacourse, M.D.'s most frequently prescribed drugs include Tivicay, Descovy, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Sylvia Lacourse, M.D. accept Medicare? ▼
Sylvia Lacourse, M.D. appears in CMS Medicare data with 266 Part D claims and 12 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Sylvia Lacourse, M.D.'s credentials? ▼
Sylvia Lacourse, M.D.'s NPI is 1508068909 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 (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
Compiled from official public sources by the PlainDoctor editorial team.