NPI registry status
Active
2026 NPPES data Public Health & General Preventive Medicine Physician NPI 1831391051 M.D.
Verify on CMS → Arthur Brownstein, M.D.
Public Health & General Preventive Medicine Physician in Honolulu, Hawaii.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,799 in Public Health & General Preventive 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
401
Medicare Part D claims · 171 beneficiaries · Public Health & General Preventive Medicine Physician avg: 944
What the federal data shows
Arthur Brownstein, M.D. filed 401 Medicare Part D claims in 2024 as a Public Health & General Preventive Medicine Physician in Honolulu, Hawaii.
- 401
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥61st
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Arthur Brownstein, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1831391051), first enumerated 06/01/2007.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 401 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1831391051 · Public Health & General Preventive Medicine Physician
NPI-10 · ENUM-MID · TAX-NARROW · RX-LIGHT · BOOK-THIN · PHOTO-ENUM
- NPI-10 1831391051
- ENUM-MID 2007
- TAX-NARROW 1,799
- RX-LIGHT 401
- BOOK-THIN 20 in Hawaii
- PHOTO-ENUM H Ford, MD · 2007
Arthur Brownstein, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
401 ≥ 61st percentile 61% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
✓
Board certification likely (heuristic, not verified)
Arthur Brownstein, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Arthur Brownstein, M.D.?
Quality data not reportedPrimary specialty
Public Health & General Preventive Medicine Physician
Medicare Part D claims
401 58% vs specialty avg
Specialty distribution in Hawaii
How Public Health & General Preventive Medicine Physician compares to other specialties among Hawaii 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 Public Health & General Preventive Medicine 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).
Practice Address
Provider Details
| NPI | 1831391051 |
|---|---|
| Specialty | Public Health & General Preventive Medicine Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 06/01/2007 |
Hospital and facility affiliations
Facilities where Arthur Brownstein, 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.
Samuel Mahelona Memorial Hospital
Koloa, HI
Critical Access Hospitals
CMS CCN: 121306
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
401
Total Claims
$21K
Total Drug Cost
171
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 630.667
- Total Day Supply
- 15,454
- Generic Drug Cost
- $5K
- Antibiotic Claims
- 84
Patient Demographics
- Average Patient Age
- 73.2 years
- Avg HCC Risk Score
- 0.84
- Gender Split
- 60% female / 40% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Arthur Brownstein, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Azithromycin
Azithromycin
38 claims
- Atorvastatin Calcium
Atorvastatin Calcium
22 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
17 claims
- Prednisone
Prednisone
16 claims
- Metformin Hcl 15
Metformin Hcl
15 claims
- Metoprolol Succinate 13
Metoprolol Succinate
13 claims
- Benazepril Hcl 12
Benazepril Hcl
12 claims
- Lisinopril 12
Lisinopril
12 claims
| Drug | Claims |
|---|---|
| Azithromycin | 38 |
| Atorvastatin Calcium | 22 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 17 |
| Prednisone | 16 |
| Metformin Hcl | 15 |
| Metoprolol Succinate | 13 |
| Benazepril Hcl | 12 |
| Lisinopril | 12 |
| Neomycin-Polymyxin-Dexameth Neomycin/Polymyxin B/Dexametha | 12 |
| Losartan Potassium | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Public Health & General Preventive Medicine Physician in HI →
All providers in Hawaii →
Compare specialties →
Public Health & General Preventive Medicine Physician Overview
How Arthur Brownstein, M.D. fits within the Public Health & General Preventive Medicine Physician landscape nationally.
1,799
Public Health & General Preventive Medicine Physician Providers in US
52
States with Public Health & General Preventive Medicine Physician
944
Avg Claims per Provider
Arthur Brownstein, M.D.'s 401 claims are below the specialty average of 944.
Nationwide Public Health & General Preventive Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Brownstein, both outside Hawaii so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2007)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Public Health & General Preventive Medicine Physician Providers in Hawaii
Other clinicians with the same primary specialty enrolled in Hawaii, drawn from the same CMS NPPES roster as Brownstein.
One of 20 Public Health & General Preventive Medicine Physician providers enrolled in Hawaii, 5 are shown here.
Frequently Asked Questions
What is Arthur Brownstein, M.D.'s specialty? ▼
Arthur Brownstein, M.D. specializes in Public Health & General Preventive Medicine Physician and practices in Honolulu, Hawaii. Credentials: M.D..
How much does Arthur Brownstein, M.D. prescribe under Medicare Part D? ▼
In 2024, Arthur Brownstein, M.D. wrote 401 Medicare Part D claims totaling $21K in drug costs for 171 beneficiaries.
Where is Arthur Brownstein, M.D. located? ▼
Arthur Brownstein, M.D. is located at 932 WARD AVE # 16, Honolulu, HI, 96814. Phone: (808) 535-5555.
What is Arthur Brownstein, M.D.'s NPI number? ▼
Arthur Brownstein, M.D.'s National Provider Identifier (NPI) is 1831391051, issued on 06/01/2007.
How many Public Health & General Preventive Medicine Physician providers are there in the US? ▼
There are 1,799 Public Health & General Preventive Medicine Physician providers across 52 states in the US. The average Public Health & General Preventive Medicine Physician provider writes 944 Medicare Part D claims per year.
What drugs does Arthur Brownstein, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Arthur Brownstein, M.D.'s most frequently prescribed drugs include Azithromycin, Atorvastatin Calcium, Albuterol Sulfate Hfa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Arthur Brownstein, M.D. accept Medicare? ▼
Arthur Brownstein, M.D. appears in CMS Medicare data with 401 Part D claims and 171 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Arthur Brownstein, M.D.'s credentials? ▼
Arthur Brownstein, M.D.'s NPI is 1831391051 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.