NPI registry status
Active
2026 NPPES data Dermatology Physician NPI 1730270851 MD
Verify on CMS → Marion Buchsbaum, MD
Dermatology Physician in Lexington, Massachusetts.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 15,011 in Dermatology 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
468
Medicare Part D claims · 242 beneficiaries · Dermatology Physician avg: 799
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 84 pts below national avg 83.5 · Penalty band
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Marion Buchsbaum, MD reported a CMS MIPS final score of 0/100 - below the 83.5 national average - and filed 468 Medicare Part D claims in 2024.
- 0/100
- MIPS score · -83 vs avg
- 468
- Part D claims, 2024
- 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.
Federal trust snapshot
What official records show about Marion Buchsbaum, MD
Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1730270851), first enumerated 09/27/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 468 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
CMS quality reporting (MIPS)
Reported a CMS MIPS final score of 0/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- 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
- State context
State board disciplinary context
Massachusetts statewide board action statistics are published annually — these figures describe aggregate state activity, not Marion Buchsbaum, MD's individual license status. Verify directly with the state medical board.
Source: BORIM annual report 2023
- 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 1730270851 · Dermatology Physician
NPI-10 · ENUM-LEGACY · TAX-MID · MIPS-LOW · RX-LIGHT · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1730270851
- ENUM-LEGACY 2006
- TAX-MID 15K Dermatology Physician
- MIPS-LOW 0/100
- RX-LIGHT 468
- BOOK-LIGHT 557 in Massachusetts
- PHOTO-FINISH Joseph Backe, MD · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Buchsbaum · this… 0
Buchsbaum · this provider
0 MIPS pts
- Mathew Cannava, … 0
Mathew Cannava, M.D.
0 MIPS pts
- Joseph Backe, MD… 0
Joseph Backe, MD
0 MIPS pts
- Bente Berman, M.… 0
Bente Berman, M.D.
0 MIPS pts
- Alison Boudreaux… 0
Alison Boudreaux, M.D.
0 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
Marion Buchsbaum, MD's MIPS score vs every measured U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.
0 ≥ 0th percentile 0% of 454,083 measured providers are in lower value bands
Each bar is a band; taller bars hold more measured 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.
The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Marion Buchsbaum, MD sits
This provider among dermatology physician peers
Across the 5,700 dermatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Marion Buchsbaum, MD writes more Part D claims than 34% of them and scores higher on MIPS quality than 0% - placing this provider in the lower-volume, lower-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one dermatology physician peer from a representative sample of 60; the gold marker is Marion Buchsbaum, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Marion Buchsbaum, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Marion Buchsbaum, MD?
Below national averagePrimary specialty
Dermatology Physician
Medicare Part D claims
468 41% vs specialty avg
MIPS final score
0/100 83.5 pts vs avg
Specialty distribution in Massachusetts
How Dermatology Physician compares to other specialties among Massachusetts providers
Medicare quality performance, MIPS
Marion Buchsbaum, MD's 2023 MIPS final score plotted against the Dermatology Physician national average
- MIPS Final Score
- 0/100
- vs 83.5 national avg · 2023 performance year
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 | 1730270851 |
|---|---|
| Specialty | Dermatology Physician |
| Credentials | MD |
| Gender | Female |
| NPI Issued | 09/27/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
0
Final Score
Measured-score avg: 83.5
0
Quality
Reporting: Individual
Hospital and facility affiliations
Facilities where Marion Buchsbaum, MD 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.
Lexington-Waltham Dermatology Group Inc
Lexington, MA
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
License & disciplinary context - Massachusetts BORIM 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 ~38K Massachusetts medical licensees in 2023 - they are NOT specific to Marion Buchsbaum, MD. To verify Marion Buchsbaum, MD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases
BORIM 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 Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Generic-heavy
Marion Buchsbaum, MD - brand share 6.0%
Dermatology Physician average
6% brand-name claims vs 94% generic, on 468 2024 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 2024.
468
Total Claims
$13K
Total Drug Cost
242
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 513.2
- Total Day Supply
- 12,722
- Brand vs Generic
- 6% brand / 94% generic
- Brand Drug Cost
- $2K
- Generic Drug Cost
- $11K
- Antibiotic Claims
- 32
Patient Demographics
- Average Patient Age
- 74.5 years
- Avg HCC Risk Score
- 0.91
- Gender Split
- 63% female / 37% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Marion Buchsbaum, MD prescribes most
Top Medicare Part D drugs by claim count, 2024
- Ketoconazole
Ketoconazole
111 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
90 claims
- Metronidazole
Metronidazole
53 claims
- Mupirocin 28
Mupirocin
28 claims
- Betamethasone Dipr… 19
Betamethasone Diprop Augmented
19 claims
- Betamethasone Dipr… 19
Betamethasone Dipropionate
19 claims
- Valacyclovir 19
Valacyclovir
19 claims
- Clobetasol Propion… 15
Clobetasol Propionate
15 claims
| Drug | Claims |
|---|---|
| Ketoconazole | 111 |
| Triamcinolone Acetonide | 90 |
| Metronidazole | 53 |
| Mupirocin | 28 |
| Betamethasone Diprop Augmented Betamethasone/Propylene Glyc | 19 |
| Betamethasone Dipropionate | 19 |
| Valacyclovir Valacyclovir Hcl | 19 |
| Clobetasol Propionate | 15 |
| Desonide | 14 |
| Cephalexin | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dermatology Physician Overview
How Marion Buchsbaum, MD fits within the Dermatology Physician landscape nationally.
15,011
Dermatology Physician Providers in US
53
States with Dermatology Physician
799
Avg Claims per Provider
Marion Buchsbaum, MD's 468 claims are below the specialty average of 799.
Nationwide Dermatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Buchsbaum, both outside Massachusetts so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (0 here).
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Dermatology Physician Providers in Massachusetts
Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as Buchsbaum.
One of 557 Dermatology Physician providers enrolled in Massachusetts, 5 are shown here.
Dr. Christopher Adams
M.D.
Boston, MA
Dr. Adewunmi Adelaja
MD, PHD
Boston, MA
Dr. David Aghassi
MD
Wellesley, MA
Dr. Abdul Ahmed
MD
Boston, MA
Dr. Abdullah Alajaji
MD
Boston, MA
Compare Dermatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Marion Buchsbaum, MD's specialty? ▼
Marion Buchsbaum, MD specializes in Dermatology Physician and practices in Lexington, Massachusetts. Credentials: MD.
How much does Marion Buchsbaum, MD prescribe under Medicare Part D? ▼
In 2024, Marion Buchsbaum, MD wrote 468 Medicare Part D claims totaling $13K in drug costs for 242 beneficiaries.
What is Marion Buchsbaum, MD's Medicare quality score? ▼
Marion Buchsbaum, MD has a CMS MIPS Final Score of 0/100 (Quality: 0). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Marion Buchsbaum, MD located? ▼
Marion Buchsbaum, MD is located at 57 BEDFORD STREET, Lexington, MA, 02420. Phone: (781) 862-2322.
What is Marion Buchsbaum, MD's NPI number? ▼
Marion Buchsbaum, MD's National Provider Identifier (NPI) is 1730270851, issued on 09/27/2006.
Does Marion Buchsbaum, MD prescribe more brand-name or generic drugs? ▼
Marion Buchsbaum, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $2K in brand drug costs.
How many Dermatology Physician providers are there in the US? ▼
There are 15,011 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 799 Medicare Part D claims per year.
What drugs does Marion Buchsbaum, MD prescribe most often? ▼
Based on 2024 Medicare Part D data, Marion Buchsbaum, MD's most frequently prescribed drugs include Ketoconazole, Triamcinolone Acetonide, Metronidazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Marion Buchsbaum, MD accept Medicare? ▼
Marion Buchsbaum, MD appears in CMS Medicare data with 468 Part D claims and 242 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marion Buchsbaum, MD's credentials? ▼
Marion Buchsbaum, MD's NPI is 1730270851 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 (2024). 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 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.