NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1770535296 D.O.
Verify on CMS → Kevin Brewster, D.O.
Internal Medicine Physician in Taneytown, Maryland.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal 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.
Prescribing volume
5K
Medicare Part D claims · 339 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
13.4/100
▼ 70 pts below national avg 83.1 · Penalty band
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
Kevin Brewster, D.O. reported a CMS MIPS final score of 13.4/100 - below the 83.1 national average - and filed 4,765 Medicare Part D claims in 2023.
- 13.4/100
- MIPS score · -70 vs avg
- 5K
- Part D claims, 2023
- 94%
- 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.
Kevin Brewster, D.O.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
13 2nd percentile higher than 2% 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 Kevin Brewster, D.O. sits
This provider among internal medicine physician peers
Across the 36,260 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Kevin Brewster, D.O. writes more Part D claims than 79% of them and scores higher on MIPS quality than 1% - placing this provider in the high-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 internal medicine physician peer from a representative sample of 60; the gold marker is Kevin Brewster, D.O.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Kevin Brewster, D.O. 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 Kevin Brewster, D.O.?
Below national averagePrimary specialty
Internal Medicine Physician
Medicare Part D claims
4,765 75% vs specialty avg
MIPS final score
13.4/100 69.7 pts vs avg
Specialty distribution in Maryland
How Internal Medicine Physician compares to other specialties among Maryland providers
Medicare quality performance, MIPS
Kevin Brewster, D.O.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average
- MIPS Final Score
- 13.4/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Internal Medicine Physician) - 13.4/100 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).
Kevin Brewster, D.O. appears in the CMS NPPES registry as an Internal Medicine Physician provider holding D.O. credentials at 1 KINGS DR, Taneytown, MD, 21787, with a listed phone of (410) 756-5323. NPI 1770535296 was issued on 05/16/2006.
Medicare Part D records for calendar year 2023 show 4,765 prescription claims written by this provider, covering 339 Medicare beneficiaries and totaling roughly $291K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 0.4%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 13.4/100 for the 2023 performance year (Quality 15, Cost 24.7), compared with the national average of 83.1.
Internal Medicine Physician is a high-volume specialty nationwide, with 172,737 enrolled providers across 56 states and an average of 2,716 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 | 1770535296 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | D.O. |
| Gender | Male |
| NPI Issued | 05/16/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
13.3975
Final Score
Avg: 83.1
15
Quality
24.6585
Cost
Reporting: Individual
Brand vs generic prescribing mix · Generic-heavy
Kevin Brewster, D.O. - brand share 6.0%
Internal Medicine Physician average
6% brand-name claims vs 94% generic, on 4,765 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.
4,765
Total Claims
$291K
Total Drug Cost
339
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 11,292
- Total Day Supply
- 333,113
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $191K
- Generic Drug Cost
- $98K
- Opioid Claims
- 19 (0.4% rate)
- Antibiotic Claims
- 85
Patient Demographics
- Average Patient Age
- 73.1 years
- Avg HCC Risk Score
- 1.04
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 38, 65-74: 145, 75-84: 115, 85+: 41
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Kevin Brewster, D.O. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Levothyroxine Sodium
Levothyroxine Sodium
409 claims
- Atorvastatin Calcium
Atorvastatin Calcium
334 claims
- Amlodipine Besylate
Amlodipine Besylate
286 claims
- Lisinopril
Lisinopril
257 claims
- Hydrochlorothiazide
Hydrochlorothiazide
194 claims
- Simvastatin 147
Simvastatin
147 claims
- Metoprolol Succinate 143
Metoprolol Succinate
143 claims
- Losartan Potassium 119
Losartan Potassium
119 claims
| Drug | Claims |
|---|---|
| Levothyroxine Sodium | 409 |
| Atorvastatin Calcium | 334 |
| Amlodipine Besylate | 286 |
| Lisinopril | 257 |
| Hydrochlorothiazide | 194 |
| Simvastatin | 147 |
| Metoprolol Succinate | 143 |
| Losartan Potassium | 119 |
| Pantoprazole Sodium | 116 |
| Pravastatin Sodium | 111 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Kevin Brewster, D.O. fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Kevin Brewster, D.O.'s 4,765 claims are above the specialty average of 2,716.
Nearby Internal Medicine Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Brewster.
Dr. Joshua Aaron
MD
Elkton, MD
Dr. Alina Aasim
M.D.
Baltimore, MD
Dr. Eduardo Abarca Rojas
M.D.
Parkville, MD
Dr. Rasheed Abassi
M.D.
Clinton, MD
Dr. Shastine Abate
MD
Baltimore, MD
Compare Internal Medicine 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 Maryland medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Internal Medicine 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 Kevin Brewster, D.O.'s specialty? ▼
Kevin Brewster, D.O. specializes in Internal Medicine Physician and practices in Taneytown, Maryland. Credentials: D.O..
How much does Kevin Brewster, D.O. prescribe under Medicare Part D? ▼
In 2023, Kevin Brewster, D.O. wrote 4,765 Medicare Part D claims totaling $291K in drug costs for 339 beneficiaries.
What is Kevin Brewster, D.O.'s Medicare quality score? ▼
Kevin Brewster, D.O. has a CMS MIPS Final Score of 13.4/100 (Quality: 15, Cost: 24.7). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Kevin Brewster, D.O. located? ▼
Kevin Brewster, D.O. is located at 1 KINGS DR, Taneytown, MD, 21787. Phone: (410) 756-5323.
What is Kevin Brewster, D.O.'s NPI number? ▼
Kevin Brewster, D.O.'s National Provider Identifier (NPI) is 1770535296, issued on 05/16/2006.
Does Kevin Brewster, D.O. prescribe more brand-name or generic drugs? ▼
Kevin Brewster, D.O.'s prescribing is 6% brand-name and 94% generic drugs by claim count, with $191K in brand drug costs.
Does Kevin Brewster, D.O. prescribe opioids? ▼
Yes, Kevin Brewster, D.O. had 19 opioid claims in 2023 with an opioid prescribing rate of 0.4%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Kevin Brewster, D.O. prescribe most often? ▼
Based on 2023 Medicare Part D data, Kevin Brewster, D.O.'s most frequently prescribed drugs include Levothyroxine Sodium, Atorvastatin Calcium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Kevin Brewster, D.O. accept Medicare? ▼
Kevin Brewster, D.O. appears in CMS Medicare data with 4,765 Part D claims and 339 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Kevin Brewster, D.O.'s credentials? ▼
Kevin Brewster, D.O.'s NPI is 1770535296 with credentials D.O.. 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.
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.