NPI registry status
Active
2026 NPPES data Dermatology Physician NPI 1700890159 MD
Verify on CMS → Hirshel Kahn, MD
Dermatology Physician in Ridgewood, New Jersey.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 14,610 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
1K
Medicare Part D claims · 465 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
▼ 8 pts below national avg 83.1 · Above neutral
Industry payments
$2.9K
214 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
Hirshel Kahn, MD reported a CMS MIPS final score of 75/100 - below the 83.1 national average - and filed 1,453 Medicare Part D claims in 2023.
- 75/100
- MIPS score · -8 vs avg
- 1K
- Part D claims, 2023
- 88%
- 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.
Hirshel Kahn, MD's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
75 15th percentile higher than 15% 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 Hirshel Kahn, MD 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, Hirshel Kahn, MD writes more Part D claims than 86% of them and scores higher on MIPS quality than 16% - 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 Hirshel Kahn, MD. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Hirshel Kahn, 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 Hirshel Kahn, MD?
Below national averagePrimary specialty
Dermatology Physician
Medicare Part D claims
1,453 99% vs specialty avg
MIPS final score
75/100 8.1 pts vs avg
Specialty distribution in New Jersey
How Dermatology Physician compares to other specialties among New Jersey providers
Medicare quality performance, MIPS
Hirshel Kahn, MD's 2023 MIPS final score plotted against the Dermatology Physician national average
- MIPS Final Score
- 75/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Dermatology Physician) - 75/100 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).
Hirshel Kahn, MD appears in the CMS NPPES registry as a Dermatology Physician provider holding MD credentials at 1200 E RIDGEWOOD AVE, Ridgewood, NJ, 07450, with a listed phone of (201) 493-1717. NPI 1700890159 was issued on 07/28/2006.
Medicare Part D records for calendar year 2023 show 1,453 prescription claims written by this provider, covering 465 Medicare beneficiaries and totaling roughly $783K in drug spend, split 12% brand-name and 88% generic by claim count. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 75/100 for the 2023 performance year, compared with the national average of 83.1.
Dermatology Physician is a mid-sized specialty nationwide, with 14,610 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 | 1700890159 |
|---|---|
| Specialty | Dermatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/28/2006 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
75
Final Score
Avg: 83.1
Reporting: Group practice
Hospital and facility affiliations
Facilities where Hirshel Kahn, 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.
Advanced Dermatology PC
Brooklyn, NY
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
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 Hirshel Kahn, MD. Source: openpaymentsdata.cms.gov.
Total received
$2.9K
Largest payer
Dermavant Sciences, 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 · Typical
Hirshel Kahn, MD - brand share 12.0%
Dermatology Physician average
12% brand-name claims vs 88% generic, on 1,453 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.
1,453
Total Claims
$783K
Total Drug Cost
465
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,654
- Total Day Supply
- 43,638
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $727K
- Generic Drug Cost
- $56K
- Antibiotic Claims
- 57
Patient Demographics
- Average Patient Age
- 72.0 years
- Avg HCC Risk Score
- 1.10
- Gender Split
- 54% female / 46% male
- Age Distribution
- <65: 54, 65-74: 238, 75-84: 133, 85+: 40
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Hirshel Kahn, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Ciclopirox
Ciclopirox
170 claims
- Mometasone Furoate
Mometasone Furoate
166 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
160 claims
- Ketoconazole
Ketoconazole
91 claims
- Clobetasol Propion… 67
Clobetasol Propionate
67 claims
- Halobetasol Propio… 58
Halobetasol Propionate
58 claims
- Ammonium Lactate 57
Ammonium Lactate
57 claims
- Tacrolimus 48
Tacrolimus
48 claims
| Drug | Claims |
|---|---|
| Ciclopirox Ciclopirox Olamine | 170 |
| Mometasone Furoate | 166 |
| Triamcinolone Acetonide | 160 |
| Ketoconazole | 91 |
| Clobetasol Propionate | 67 |
| Halobetasol Propionate | 58 |
| Ammonium Lactate | 57 |
| Tacrolimus | 48 |
| Spironolactone | 42 |
| Finasteride | 36 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Dermatology Physician Overview
How Hirshel Kahn, MD fits within the Dermatology Physician landscape nationally.
14,610
Dermatology Physician Providers in US
53
States with Dermatology Physician
729
Avg Claims per Provider
Hirshel Kahn, MD's 1,453 claims are above the specialty average of 729.
Nearby Dermatology Physician Providers in New Jersey
Other clinicians with the same primary specialty enrolled in New Jersey, drawn from the same CMS NPPES roster as Kahn.
Dr. Morgan Abasolo
CRNP
Princeton, NJ
Dr. Marc Abbate
MD
West Orange, NJ
Dr. Heba Abdulla
M.D.
Franklin Lakes, NJ
Dr. Mark Abel
M.D.
Brick, NJ
Dr. Maria Abello-Poblete
M.D.
Mercerville, NJ
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 New Jersey 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore New Jersey
Frequently Asked Questions
What is Hirshel Kahn, MD's specialty? ▼
Hirshel Kahn, MD specializes in Dermatology Physician and practices in Ridgewood, New Jersey. Credentials: MD.
How much does Hirshel Kahn, MD prescribe under Medicare Part D? ▼
In 2023, Hirshel Kahn, MD wrote 1,453 Medicare Part D claims totaling $783K in drug costs for 465 beneficiaries.
What is Hirshel Kahn, MD's Medicare quality score? ▼
Hirshel Kahn, MD has a CMS MIPS Final Score of 75/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Hirshel Kahn, MD located? ▼
Hirshel Kahn, MD is located at 1200 E RIDGEWOOD AVE, Ridgewood, NJ, 07450. Phone: (201) 493-1717.
What is Hirshel Kahn, MD's NPI number? ▼
Hirshel Kahn, MD's National Provider Identifier (NPI) is 1700890159, issued on 07/28/2006.
Does Hirshel Kahn, MD prescribe more brand-name or generic drugs? ▼
Hirshel Kahn, MD's prescribing is 12% brand-name and 88% generic drugs by claim count, with $727K in brand drug costs.
How many Dermatology Physician providers are there in the US? ▼
There are 14,610 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 Hirshel Kahn, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Hirshel Kahn, MD's most frequently prescribed drugs include Ciclopirox, Mometasone Furoate, Triamcinolone Acetonide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Hirshel Kahn, MD accept Medicare? ▼
Hirshel Kahn, MD appears in CMS Medicare data with 1,453 Part D claims and 465 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Hirshel Kahn, MD's credentials? ▼
Hirshel Kahn, MD's NPI is 1700890159 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 (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.