NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1558433557 M.D.
Verify on CMS → Roy Thompson, M.D.
Cardiovascular Disease Physician in Boulder, Colorado.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 24,810 in Cardiovascular 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
303
Medicare Part D claims · 100 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
83%
generic claims · 17% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Roy Thompson, M.D. filed 303 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Boulder, Colorado, prescribing 83% generic.
- 303
- Part D claims, 2023
- 83%
- generic prescribing
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.
Roy Thompson, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
303 Top 43% higher than 57% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
Roy Thompson, M.D. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Roy Thompson, M.D.?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
303 90% vs specialty avg
Specialty distribution in Colorado
How Cardiovascular Disease Physician compares to other specialties among Colorado providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Cardiovascular Disease Physician. Verify directly:
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).
Roy Thompson, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 4743 ARAPAHOE AVE STE 201, Boulder, CO, 80303, with a listed phone of (303) 442-2395. NPI 1558433557 was issued on 11/14/2006.
Medicare Part D records for calendar year 2023 show 303 prescription claims written by this provider, covering 100 Medicare beneficiaries and totaling roughly $55K in drug spend, split 17% brand-name and 83% generic by claim count.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,810 enrolled providers across 54 states and an average of 3,033 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 | 1558433557 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 11/14/2006 |
Brand vs generic prescribing mix · Typical
Roy Thompson, M.D. - brand share 17.0%
Cardiovascular Disease Physician average
17% brand-name claims vs 83% generic, on 303 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.
303
Total Claims
$55K
Total Drug Cost
100
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 753
- Total Day Supply
- 22,510
- Brand vs Generic
- 17% brand / 83% generic
- Brand Drug Cost
- $50K
- Generic Drug Cost
- $5K
Patient Demographics
- Average Patient Age
- 76.4 years
- Avg HCC Risk Score
- 1.12
- Gender Split
- 33% female / 67% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Roy Thompson, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
40 claims
- Eliquis
Eliquis
31 claims
- Metoprolol Tartrate
Metoprolol Tartrate
31 claims
- Rosuvastatin Calcium
Rosuvastatin Calcium
30 claims
- Metoprolol Succinate
Metoprolol Succinate
19 claims
- Lisinopril
Lisinopril
18 claims
- Amlodipine Besylate
Amlodipine Besylate
16 claims
- Xarelto 15
Xarelto
15 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 40 |
| Eliquis Apixaban | 31 |
| Metoprolol Tartrate | 31 |
| Rosuvastatin Calcium | 30 |
| Metoprolol Succinate | 19 |
| Lisinopril | 18 |
| Amlodipine Besylate | 16 |
| Xarelto Rivaroxaban | 15 |
| Irbesartan | 14 |
| Olmesartan Medoxomil | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Cardiovascular Disease Physician Overview
How Roy Thompson, M.D. fits within the Cardiovascular Disease Physician landscape nationally.
24,810
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
Roy Thompson, M.D.'s 303 claims are below the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in Colorado
Other clinicians with the same primary specialty enrolled in Colorado, drawn from the same CMS NPPES roster as Thompson.
Dr. John Abboud
M.D.
Glenwood Springs, CO
Fadi Alattar
Pueblo, CO
Dr. David Albrecht
M.D.
Colorado Springs, CO
Dr. Brian Allen
M.D.
Brighton, CO
Dr. Larry Allen
MD
Aurora, CO
Compare Cardiovascular 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 Colorado medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Cardiovascular 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 Roy Thompson, M.D.'s specialty? ▼
Roy Thompson, M.D. specializes in Cardiovascular Disease Physician and practices in Boulder, Colorado. Credentials: M.D..
How much does Roy Thompson, M.D. prescribe under Medicare Part D? ▼
In 2023, Roy Thompson, M.D. wrote 303 Medicare Part D claims totaling $55K in drug costs for 100 beneficiaries.
Where is Roy Thompson, M.D. located? ▼
Roy Thompson, M.D. is located at 4743 ARAPAHOE AVE STE 201, Boulder, CO, 80303. Phone: (303) 442-2395.
What is Roy Thompson, M.D.'s NPI number? ▼
Roy Thompson, M.D.'s National Provider Identifier (NPI) is 1558433557, issued on 11/14/2006.
Does Roy Thompson, M.D. prescribe more brand-name or generic drugs? ▼
Roy Thompson, M.D.'s prescribing is 17% brand-name and 83% generic drugs by claim count, with $50K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,810 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does Roy Thompson, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Roy Thompson, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Eliquis, Metoprolol Tartrate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Roy Thompson, M.D. accept Medicare? ▼
Roy Thompson, M.D. appears in CMS Medicare data with 303 Part D claims and 100 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Roy Thompson, M.D.'s credentials? ▼
Roy Thompson, M.D.'s NPI is 1558433557 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.
- 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.
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 May 2026.