NPI registry status
Active
2026 NPPES data Specialist NPI 1093802589 M.D.
Verify on CMS → Bruce Carlton, M.D.
Specialist in Vacaville, 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 69,608 in Specialist, 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
277
Medicare Part D claims · 80 beneficiaries · Specialist avg: 1K
Generic prescribing
91%
generic claims · 9% 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
Bruce Carlton, M.D. filed 277 Medicare Part D claims in 2023 as a Specialist in Vacaville, California, prescribing 91% generic.
- 277
- Part D claims, 2023
- 91%
- 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.
Bruce Carlton, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
277 49th percentile higher than 49% 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
What does the federal data show about Bruce Carlton, M.D.?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
277 81% vs specialty avg
Specialty distribution in California
How Specialist compares to other specialties among California 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 Specialist. 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).
Bruce Carlton, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 292 ALAMO DR STE 2, Vacaville, CA, 95688, with a listed phone of (707) 448-2218. NPI 1093802589 was issued on 10/06/2006.
Medicare Part D records for calendar year 2023 show 277 prescription claims written by this provider, covering 80 Medicare beneficiaries and totaling roughly $13K in drug spend, split 9% brand-name and 91% generic by claim count.
Specialist is a high-volume specialty nationwide, with 69,608 enrolled providers across 55 states and an average of 1,474 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 | 1093802589 |
|---|---|
| Specialty | Specialist |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 10/06/2006 |
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 Bruce Carlton, M.D.. To verify Bruce Carlton, M.D.'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.
Brand vs generic prescribing mix · Generic-heavy
Bruce Carlton, M.D. - brand share 9.0%
Specialist average
9% brand-name claims vs 91% generic, on 277 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.
277
Total Claims
$13K
Total Drug Cost
80
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 291
- Total Day Supply
- 7,279
- Brand vs Generic
- 9% brand / 91% generic
- Brand Drug Cost
- $620
- Generic Drug Cost
- $12K
- Antibiotic Claims
- 11
Patient Demographics
- Average Patient Age
- 71.4 years
- Avg HCC Risk Score
- 1.51
- Gender Split
- 64% female / 36% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Bruce Carlton, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Triamcinolone Acet…
Triamcinolone Acetonide
65 claims
- Ketoconazole
Ketoconazole
44 claims
- Fluocinolone Aceto… 19
Fluocinolone Acetonide
19 claims
- Nystatin 18
Nystatin
18 claims
- Fluocinonide 14
Fluocinonide
14 claims
- Mometasone Furoate 14
Mometasone Furoate
14 claims
- Silver Sulfadiazine 12
Silver Sulfadiazine
12 claims
- Ssd 12
Ssd
12 claims
| Drug | Claims |
|---|---|
| Triamcinolone Acetonide | 65 |
| Ketoconazole | 44 |
| Fluocinolone Acetonide | 19 |
| Nystatin | 18 |
| Fluocinonide | 14 |
| Mometasone Furoate | 14 |
| Silver Sulfadiazine | 12 |
| Ssd Silver Sulfadiazine | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Bruce Carlton, M.D. fits within the Specialist landscape nationally.
69,608
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Bruce Carlton, M.D.'s 277 claims are below the specialty average of 1,474.
Nearby Specialist Providers in California
Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as Carlton.
Adrienne Abad Santos
San Francisco, CA
Dr. Brenda Abarca
MD
Torrance, CA
Dr. Fatemeh Abbasi
PT
Van Nuys, CA
Dr. Erlinda Abcede
M.D.
Cudahy, CA
Dr. Maher Abdallah
M.D.
Palm Springs, CA
Compare Specialist 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 California medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Specialist 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
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How insurance networks affect your costs
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Frequently Asked Questions
What is Bruce Carlton, M.D.'s specialty? ▼
Bruce Carlton, M.D. specializes in Specialist and practices in Vacaville, California. Credentials: M.D..
How much does Bruce Carlton, M.D. prescribe under Medicare Part D? ▼
In 2023, Bruce Carlton, M.D. wrote 277 Medicare Part D claims totaling $13K in drug costs for 80 beneficiaries.
Where is Bruce Carlton, M.D. located? ▼
Bruce Carlton, M.D. is located at 292 ALAMO DR STE 2, Vacaville, CA, 95688. Phone: (707) 448-2218.
What is Bruce Carlton, M.D.'s NPI number? ▼
Bruce Carlton, M.D.'s National Provider Identifier (NPI) is 1093802589, issued on 10/06/2006.
Does Bruce Carlton, M.D. prescribe more brand-name or generic drugs? ▼
Bruce Carlton, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $620 in brand drug costs.
How many Specialist providers are there in the US? ▼
There are 69,608 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Bruce Carlton, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Bruce Carlton, M.D.'s most frequently prescribed drugs include Triamcinolone Acetonide, Ketoconazole, Fluocinolone Acetonide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bruce Carlton, M.D. accept Medicare? ▼
Bruce Carlton, M.D. appears in CMS Medicare data with 277 Part D claims and 80 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bruce Carlton, M.D.'s credentials? ▼
Bruce Carlton, M.D.'s NPI is 1093802589 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.