NPI registry status
Active
2026 NPPES data Urology Physician NPI 1538108311 MD
Verify on CMS → Stephen Brassell, MD
Urology Physician in Boise, Idaho.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 13,350 in Urology 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
896
Medicare Part D claims · 313 beneficiaries · Urology Physician avg: 1K
MIPS score
83.3/100
▲ 0 pts above national avg 83.1 · Above neutral
Industry payments
$1.4K
10 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Stephen Brassell, MD reported a CMS MIPS final score of 83.3/100 - above the 83.1 national average - and filed 896 Medicare Part D claims in 2023.
- 83.3/100
- MIPS score · +0 vs avg
- 896
- Part D claims, 2023
- 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.
Stephen Brassell, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
83 42nd percentile higher than 42% 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 Stephen Brassell, MD sits
This provider among urology physician peers
Across the 4,623 urology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Stephen Brassell, MD writes more Part D claims than 35% of them and scores higher on MIPS quality than 43% - placing this provider in the lower-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
Each dot is one urology physician peer from a representative sample of 60; the gold marker is Stephen Brassell, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Stephen Brassell, MD 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 Stephen Brassell, MD?
Near national averagePrimary specialty
Urology Physician
Medicare Part D claims
896 30% vs specialty avg
MIPS final score
83.3/100 0.2 pts vs avg
Specialty distribution in Idaho
How Urology Physician compares to other specialties among Idaho providers
Medicare quality performance, MIPS
Stephen Brassell, MD's 2023 MIPS final score plotted against the Urology Physician national average
- MIPS Final Score
- 83.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Urology Physician) - 83.3/100 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).
Stephen Brassell, MD appears in the CMS NPPES registry as a Urology Physician provider holding MD credentials at 100 E IDAHO ST, Boise, ID, 83712, with a listed phone of (208) 381-2222. NPI 1538108311 was issued on 06/06/2006.
Medicare Part D records for calendar year 2023 show 896 prescription claims written by this provider, covering 313 Medicare beneficiaries and totaling roughly $21K in drug spend, with an opioid prescribing rate of 6.1%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 83.3/100 for the 2023 performance year (Quality 79.5, Cost 64.9), compared with the national average of 83.1.
Urology Physician is a mid-sized specialty nationwide, with 13,350 enrolled providers across 54 states and an average of 1,280 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 | 1538108311 |
|---|---|
| Specialty | Urology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 06/06/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
83.3209
Final Score
Avg: 83.1
79.5148
Quality
64.8883
Cost
100
Promoting Interoperability
Reporting: Group practice
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 Stephen Brassell, MD. Source: openpaymentsdata.cms.gov.
Total received
$1.4K
Largest payer
Edap Technomed 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
896
Total Claims
$21K
Total Drug Cost
313
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,920
- Total Day Supply
- 49,705
- Generic Drug Cost
- $15K
- Opioid Claims
- 55 (6.1% rate)
- Antibiotic Claims
- 141
Patient Demographics
- Average Patient Age
- 74.5 years
- Avg HCC Risk Score
- 1.11
- Gender Split
- 9% female / 91% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Stephen Brassell, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Finasteride
Finasteride
255 claims
- Tamsulosin Hcl
Tamsulosin Hcl
245 claims
- Levofloxacin 89
Levofloxacin
89 claims
- Oxybutynin Chloride 55
Oxybutynin Chloride
55 claims
- Diazepam 54
Diazepam
54 claims
- Sulfamethoxazole-T… 32
Sulfamethoxazole-Trimethoprim
32 claims
- Tramadol Hcl 32
Tramadol Hcl
32 claims
- Alfuzosin Hcl Er 20
Alfuzosin Hcl Er
20 claims
| Drug | Claims |
|---|---|
| Finasteride | 255 |
| Tamsulosin Hcl | 245 |
| Levofloxacin | 89 |
| Oxybutynin Chloride | 55 |
| Diazepam | 54 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 32 |
| Tramadol Hcl | 32 |
| Alfuzosin Hcl Er Alfuzosin Hcl | 20 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 20 |
| Oxybutynin Chloride Er Oxybutynin Chloride | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Urology Physician Overview
How Stephen Brassell, MD fits within the Urology Physician landscape nationally.
13,350
Urology Physician Providers in US
54
States with Urology Physician
1,280
Avg Claims per Provider
Stephen Brassell, MD's 896 claims are below the specialty average of 1,280.
Nearby Urology Physician Providers in Idaho
Other clinicians with the same primary specialty enrolled in Idaho, drawn from the same CMS NPPES roster as Brassell.
Dr. Brian Auge
MD
Meridian, ID
Dr. Cory Bates
M.D.
Twin Falls, ID
Dr. Richard Blatter
D.O.
Idaho Falls, ID
Dr. Edwin Briggs
M.D.
Boise, ID
Dr. Peter Cannon
M.D.
Idaho Falls, ID
Compare Urology 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 Idaho medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Urology 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.
Healthcare Guides
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Idaho
Frequently Asked Questions
What is Stephen Brassell, MD's specialty? ▼
Stephen Brassell, MD specializes in Urology Physician and practices in Boise, Idaho. Credentials: MD.
How much does Stephen Brassell, MD prescribe under Medicare Part D? ▼
In 2023, Stephen Brassell, MD wrote 896 Medicare Part D claims totaling $21K in drug costs for 313 beneficiaries.
What is Stephen Brassell, MD's Medicare quality score? ▼
Stephen Brassell, MD has a CMS MIPS Final Score of 83.3/100 (Quality: 79.5, Cost: 64.9). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Stephen Brassell, MD located? ▼
Stephen Brassell, MD is located at 100 E IDAHO ST, Boise, ID, 83712. Phone: (208) 381-2222.
What is Stephen Brassell, MD's NPI number? ▼
Stephen Brassell, MD's National Provider Identifier (NPI) is 1538108311, issued on 06/06/2006.
Does Stephen Brassell, MD prescribe opioids? ▼
Yes, Stephen Brassell, MD had 55 opioid claims in 2023 with an opioid prescribing rate of 6.1%.
How many Urology Physician providers are there in the US? ▼
There are 13,350 Urology Physician providers across 54 states in the US. The average Urology Physician provider writes 1,280 Medicare Part D claims per year.
What drugs does Stephen Brassell, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Stephen Brassell, MD's most frequently prescribed drugs include Finasteride, Tamsulosin Hcl, Levofloxacin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Stephen Brassell, MD accept Medicare? ▼
Stephen Brassell, MD appears in CMS Medicare data with 896 Part D claims and 313 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Stephen Brassell, MD's credentials? ▼
Stephen Brassell, MD's NPI is 1538108311 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.
- 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.