2026 NPPES data Dermatology Physician NPI 1851451835 MD
Verify on CMS →

SAMUEL CHACHKIN, MD

Dermatology Physician in HUNTINGDON VALLEY, Pennsylvania. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 640 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
99.2957/100
▲ 16 pts above national avg 83.1 · [object Object]
Industry payments
$1.3K
56 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SAMUEL CHACHKIN, MD is a Dermatology Physician ([object Object]) practicing in HUNTINGDON VALLEY, Pennsylvania with a Medicare Part D prescribing footprint of 1K claims across 640 beneficiaries — 8% brand-name prescribing . Their CMS MIPS Final Score of 99.2957/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $1.3K across 56 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SAMUEL CHACHKIN, MD reported a CMS MIPS final score of 99.2957 out of 100, above the 83.1 national average, and filed 1,366 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

SAMUEL CHACHKIN, 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).

SAMUEL CHACHKIN, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 12/11/2006

NPI 1851451835

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

1,366 87% vs specialty avg

2023 prescription claims

Specialty avg: 729

MIPS final score

99.2957/100 16.195700000000002% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Pennsylvania

How Dermatology Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

Dermatology Physician share within Pennsylvania

1. Dermatology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Dermatology Physician share within Pennsylvania

Medicare quality performance — MIPS

SAMUEL CHACHKIN, MD's 2023 MIPS final score plotted against the Dermatology Physician national average

High performer (top quartile)
MIPS Final Score
99.2957/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Dermatology Physician) — 99.2957/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Dermatology Physician) — 99.2957/100 vs national avg 83.1

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).

SAMUEL CHACHKIN, MD is a Dermatology Physician provider practicing in HUNTINGDON VALLEY, Pennsylvania, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1851451835. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SAMUEL CHACHKIN, MD appears in the CMS NPPES registry as a Dermatology Physician provider holding MD credentials at 2301 HUNTINGDON PIKE, HUNTINGDON VALLEY, PA, 19006, with a listed phone of (215) 947-7500. NPI 1851451835 was issued on 12/11/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHACHKIN most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,366 prescription claims written by this provider, covering 640 Medicare beneficiaries and totaling roughly $169K in drug spend, split 8% brand-name and 92% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 99.2957/100 for the 2023 performance year (Quality 100, Cost 97.6522), 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

2301 HUNTINGDON PIKE
HUNTINGDON VALLEY, PA 19006

Provider Details

NPI 1851451835
Specialty Dermatology Physician
Credentials MD
Gender Male
NPI Issued 12/11/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

99.2957
Final Score
Avg: 83.1
100
Quality
97.6522
Cost
100
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where SAMUEL CHACHKIN, 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.

PENNSYLVANIA DERMATOLOGY GROUP PC
HUNTINGDON VALLEY, PA

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 SAMUEL CHACHKIN, MD. Source: openpaymentsdata.cms.gov.

Total received

$1.3K

Largest payer

Janssen Biotech, 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.

License & disciplinary context — Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 — they are NOT specific to SAMUEL CHACHKIN, MD. To verify SAMUEL CHACHKIN, MD's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-BOM 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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

SAMUEL CHACHKIN, MD — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 1,366 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.

1,366
Total Claims
$169K
Total Drug Cost
640
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,532
Total Day Supply
40,784
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$121K
Generic Drug Cost
$47K
Antibiotic Claims
56

Patient Demographics

Average Patient Age
75.5 years
Avg HCC Risk Score
1.08
Gender Split
51% female / 49% male
Age Distribution
<65: 14, 65-74: 289, 75-84: 262, 85+: 75

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Ketoconazole
321
Triamcinolone Acetonide
225
Clobetasol Propionate
91
Fluorouracil
82
Metronidazole
68
Mupirocin
66
Hydrocortisone
47
Calcipotriene
39
Clindamycin Phosphate
35
Valacyclovir
Valacyclovir Hcl
35

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Dermatology Physician Overview

How SAMUEL CHACHKIN, 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

SAMUEL CHACHKIN, MD's 1,366 claims are above the specialty average of 729.

Nearby Dermatology Physician Providers in Pennsylvania

Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as CHACHKIN.

Compare Dermatology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is SAMUEL CHACHKIN, MD's specialty?
SAMUEL CHACHKIN, MD specializes in Dermatology Physician and practices in HUNTINGDON VALLEY, Pennsylvania. Credentials: MD.
How much does SAMUEL CHACHKIN, MD prescribe under Medicare Part D?
In 2023, SAMUEL CHACHKIN, MD wrote 1,366 Medicare Part D claims totaling $169K in drug costs for 640 beneficiaries.
What is SAMUEL CHACHKIN, MD's Medicare quality score?
SAMUEL CHACHKIN, MD has a CMS MIPS Final Score of 99.2957/100 (Quality: 100, Cost: 97.6522). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is SAMUEL CHACHKIN, MD located?
SAMUEL CHACHKIN, MD is located at 2301 HUNTINGDON PIKE, HUNTINGDON VALLEY, PA, 19006. Phone: (215) 947-7500.
What is SAMUEL CHACHKIN, MD's NPI number?
SAMUEL CHACHKIN, MD's National Provider Identifier (NPI) is 1851451835, issued on 12/11/2006.
Does SAMUEL CHACHKIN, MD prescribe more brand-name or generic drugs?
SAMUEL CHACHKIN, MD's prescribing is 8% brand-name and 92% generic drugs by claim count, with $121K 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 SAMUEL CHACHKIN, MD prescribe most often?
Based on 2023 Medicare Part D data, SAMUEL CHACHKIN, MD's most frequently prescribed drugs include Ketoconazole, Triamcinolone Acetonide, Clobetasol Propionate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SAMUEL CHACHKIN, MD accept Medicare?
SAMUEL CHACHKIN, MD appears in CMS Medicare data with 1,366 Part D claims and 640 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SAMUEL CHACHKIN, MD's credentials?
SAMUEL CHACHKIN, MD's NPI is 1851451835 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

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