NPI registry status
Active
2026 NPPES data Dermatology Physician NPI 1508855248 M.D.
Verify on CMS → Bonnie Epstein, M.D.
Dermatology Physician in Lutherville, 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 14,645 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
824
Medicare Part D claims · 365 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 83 pts below national avg 83.1 · Penalty band
Industry payments
$15.31
1 payments · CMS Open Payments (Sunshine Act)
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
Bonnie Epstein, M.D. reported a CMS MIPS final score of 0/100 - below the 83.1 national average - and filed 824 Medicare Part D claims in 2023.
- 0/100
- MIPS score · -83 vs avg
- 824
- Part D claims, 2023
- 93%
- 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.
Bonnie Epstein, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
0 0th percentile higher than 0% 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 Bonnie Epstein, M.D. sits
This provider among dermatology physician peers
Across the 6,594 dermatology physician providers who report both Medicare Part D prescribing and a MIPS quality score, Bonnie Epstein, M.D. writes more Part D claims than 58% of them and scores higher on MIPS quality than 0% - 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 dermatology physician peer from a representative sample of 60; the gold marker is Bonnie Epstein, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Bonnie Epstein, M.D. 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 Bonnie Epstein, M.D.?
Below national averagePrimary specialty
Dermatology Physician
Medicare Part D claims
824 13% vs specialty avg
MIPS final score
0/100 83.1 pts vs avg
Specialty distribution in Maryland
How Dermatology Physician compares to other specialties among Maryland providers
Medicare quality performance, MIPS
Bonnie Epstein, M.D.'s 2023 MIPS final score plotted against the Dermatology Physician national average
- MIPS Final Score
- 0/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Dermatology Physician) - 0/100 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).
Bonnie Epstein, M.D. appears in the CMS NPPES registry as a Dermatology Physician provider holding M.D. credentials at 2360 W JOPPA RD, Lutherville, MD, 21093, with a listed phone of (410) 823-0350. NPI 1508855248 was issued on 10/15/2005.
Medicare Part D records for calendar year 2023 show 824 prescription claims written by this provider, covering 365 Medicare beneficiaries and totaling roughly $35K in drug spend, split 7% brand-name and 93% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 0/100 for the 2023 performance year (Quality 0), compared with the national average of 83.1.
Dermatology Physician is a mid-sized specialty nationwide, with 14,645 enrolled providers across 53 states and an average of 729 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 | 1508855248 |
|---|---|
| Specialty | Dermatology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 10/15/2005 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
0
Final Score
Avg: 83.1
0
Quality
Reporting: Individual
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 Bonnie Epstein, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$15
Largest payer
Regeneron Healthcare Solutions, 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.
Brand vs generic prescribing mix · Generic-heavy
Bonnie Epstein, M.D. - brand share 7.0%
Dermatology Physician average
7% brand-name claims vs 93% generic, on 824 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.
824
Total Claims
$35K
Total Drug Cost
365
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 984
- Total Day Supply
- 23,943
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $11K
- Generic Drug Cost
- $25K
- Antibiotic Claims
- 50
Patient Demographics
- Average Patient Age
- 76.8 years
- Avg HCC Risk Score
- 0.91
- Gender Split
- 65% female / 35% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Bonnie Epstein, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Triamcinolone Acet…
Triamcinolone Acetonide
130 claims
- Ketoconazole
Ketoconazole
118 claims
- Metronidazole
Metronidazole
53 claims
- Fluocinonide 50
Fluocinonide
50 claims
- Doxycycline Hyclate 43
Doxycycline Hyclate
43 claims
- Clobetasol Propion… 41
Clobetasol Propionate
41 claims
- Valacyclovir 40
Valacyclovir
40 claims
- Nystatin 35
Nystatin
35 claims
| Drug | Claims |
|---|---|
| Triamcinolone Acetonide | 130 |
| Ketoconazole | 118 |
| Metronidazole | 53 |
| Fluocinonide | 50 |
| Doxycycline Hyclate | 43 |
| Clobetasol Propionate | 41 |
| Valacyclovir Valacyclovir Hcl | 40 |
| Nystatin | 35 |
| Hydrocortisone | 31 |
| Mometasone Furoate | 28 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dermatology Physician Overview
How Bonnie Epstein, M.D. fits within the Dermatology Physician landscape nationally.
14,645
Dermatology Physician Providers in US
53
States with Dermatology Physician
729
Avg Claims per Provider
Bonnie Epstein, M.D.'s 824 claims are above the specialty average of 729.
Nearby Dermatology Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Epstein.
Dr. Melanie Adams
MD
Columbia, MD
Dr. Crystal Aguh
M.D.
Baltimore, MD
Adnan Ahmed
Hunt Valley, MD
Dr. Danso Ako-Adjei
MD
Gaithersburg, MD
Dr. Moses Albert
MD
Chevy Chase, MD
Compare Dermatology 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 Dermatology 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 Bonnie Epstein, M.D.'s specialty? ▼
Bonnie Epstein, M.D. specializes in Dermatology Physician and practices in Lutherville, Maryland. Credentials: M.D..
How much does Bonnie Epstein, M.D. prescribe under Medicare Part D? ▼
In 2023, Bonnie Epstein, M.D. wrote 824 Medicare Part D claims totaling $35K in drug costs for 365 beneficiaries.
What is Bonnie Epstein, M.D.'s Medicare quality score? ▼
Bonnie Epstein, M.D. has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Bonnie Epstein, M.D. located? ▼
Bonnie Epstein, M.D. is located at 2360 W JOPPA RD, Lutherville, MD, 21093. Phone: (410) 823-0350.
What is Bonnie Epstein, M.D.'s NPI number? ▼
Bonnie Epstein, M.D.'s National Provider Identifier (NPI) is 1508855248, issued on 10/15/2005.
Does Bonnie Epstein, M.D. prescribe more brand-name or generic drugs? ▼
Bonnie Epstein, M.D.'s prescribing is 7% brand-name and 93% generic drugs by claim count, with $11K in brand drug costs.
How many Dermatology Physician providers are there in the US? ▼
There are 14,645 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 729 Medicare Part D claims per year.
What drugs does Bonnie Epstein, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Bonnie Epstein, M.D.'s most frequently prescribed drugs include Triamcinolone Acetonide, Ketoconazole, Metronidazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Bonnie Epstein, M.D. accept Medicare? ▼
Bonnie Epstein, M.D. appears in CMS Medicare data with 824 Part D claims and 365 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Bonnie Epstein, M.D.'s credentials? ▼
Bonnie Epstein, M.D.'s NPI is 1508855248 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.
- 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.