2026 NPPES data MOHS-Micrographic Surgery Physician NPI 1326240557 M.D. PH.D.
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MARC RUBENZIK, M.D. PH.D.

MOHS-Micrographic Surgery Physician in PHILADELPHIA, 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
372
Medicare Part D claims · 264 beneficiaries · MOHS-Micrographic Surgery Physician avg: 607
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: MARC RUBENZIK, M.D. PH.D. is a MOHS-Micrographic Surgery Physician ([object Object]) practicing in PHILADELPHIA, Pennsylvania with a Medicare Part D prescribing footprint of 372 claims across 264 beneficiaries — 16% brand-name prescribing .

What stands out: MARC RUBENZIK, M.D. PH.D. filed 372 Medicare Part D claims in 2023 across PHILADELPHIA, Pennsylvania. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MARC RUBENZIK, M.D. PH.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).

MARC RUBENZIK, M.D. PH.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/01/2007

NPI 1326240557

Primary specialty

MOHS-Micrographic Surgery Physician

Niche

1,102 US NPIs in this specialty

Medicare Part D claims

372 39% vs specialty avg

2023 prescription claims

Specialty avg: 607

Specialty distribution in Pennsylvania

How MOHS-Micrographic Surgery Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

MOHS-Micrographic Surgery Physician share within Pennsylvania

1. MOHS-Micrographic Surgery Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
MOHS-Micrographic Surgery Physician share within Pennsylvania

Specialty board-certification context

Estimated specialty board-certified rate — MOHS-Micrographic Surgery Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
MOHS-Micrographic Surgery Physician ABMS/AOA estimate

Est. board-certified rate (MOHS-Micrographic Surgery Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (MOHS-Micrographic Surgery Physician) — ABMS / AOA estimate

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).

MARC RUBENZIK, M.D. PH.D. is a MOHS-Micrographic Surgery Physician provider practicing in PHILADELPHIA, Pennsylvania, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D. PH.D.. NPI: 1326240557. 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.

MARC RUBENZIK, M.D. PH.D. appears in the CMS NPPES registry as a MOHS-Micrographic Surgery Physician provider holding M.D. PH.D. credentials at 233 S 10TH ST, PHILADELPHIA, PA, 19107, with a listed phone of (215) 503-5785. NPI 1326240557 was issued on 06/01/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what RUBENZIK 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 372 prescription claims written by this provider, covering 264 Medicare beneficiaries and totaling roughly $16K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 8.1%. 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.

MOHS-Micrographic Surgery Physician is a narrow specialty nationwide, with 1,102 enrolled providers across 52 states and an average of 607 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

233 S 10TH ST
PHILADELPHIA, PA 19107

Provider Details

NPI 1326240557
Specialty MOHS-Micrographic Surgery Physician
Credentials M.D. PH.D.
Gender Male
NPI Issued 06/01/2007

Hospital and facility affiliations

Facilities where MARC RUBENZIK, M.D. PH.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.

SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP
SAN DIEGO, CA

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 — 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 MARC RUBENZIK, M.D. PH.D.. To verify MARC RUBENZIK, M.D. PH.D.'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 · Typical

MARC RUBENZIK, M.D. PH.D. — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 372 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.

372
Total Claims
$16K
Total Drug Cost
264
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
374
Total Day Supply
6,151
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$10K
Generic Drug Cost
$6K
Opioid Claims
30 (8.1% rate)
Antibiotic Claims
171

Patient Demographics

Average Patient Age
77.1 years
Avg HCC Risk Score
1.27
Gender Split
45% female / 55% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Doxycycline Monohydrate
164
Fluorouracil
46
Vectical
Calcitriol
39
Imiquimod
38
Tramadol Hcl
22

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

MOHS-Micrographic Surgery Physician Overview

How MARC RUBENZIK, M.D. PH.D. fits within the MOHS-Micrographic Surgery Physician landscape nationally.

1,102
MOHS-Micrographic Surgery Physician Providers in US
52
States with MOHS-Micrographic Surgery Physician
607
Avg Claims per Provider

MARC RUBENZIK, M.D. PH.D.'s 372 claims are below the specialty average of 607.

Nearby MOHS-Micrographic Surgery Physician Providers in Pennsylvania

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

Compare MOHS-Micrographic Surgery Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARC RUBENZIK, M.D. PH.D.'s specialty?
MARC RUBENZIK, M.D. PH.D. specializes in MOHS-Micrographic Surgery Physician and practices in PHILADELPHIA, Pennsylvania. Credentials: M.D. PH.D..
How much does MARC RUBENZIK, M.D. PH.D. prescribe under Medicare Part D?
In 2023, MARC RUBENZIK, M.D. PH.D. wrote 372 Medicare Part D claims totaling $16K in drug costs for 264 beneficiaries.
Where is MARC RUBENZIK, M.D. PH.D. located?
MARC RUBENZIK, M.D. PH.D. is located at 233 S 10TH ST, PHILADELPHIA, PA, 19107. Phone: (215) 503-5785.
What is MARC RUBENZIK, M.D. PH.D.'s NPI number?
MARC RUBENZIK, M.D. PH.D.'s National Provider Identifier (NPI) is 1326240557, issued on 06/01/2007.
Does MARC RUBENZIK, M.D. PH.D. prescribe more brand-name or generic drugs?
MARC RUBENZIK, M.D. PH.D.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $10K in brand drug costs.
Does MARC RUBENZIK, M.D. PH.D. prescribe opioids?
Yes, MARC RUBENZIK, M.D. PH.D. had 30 opioid claims in 2023 with an opioid prescribing rate of 8.1%.
How many MOHS-Micrographic Surgery Physician providers are there in the US?
There are 1,102 MOHS-Micrographic Surgery Physician providers across 52 states in the US. The average MOHS-Micrographic Surgery Physician provider writes 607 Medicare Part D claims per year.
What drugs does MARC RUBENZIK, M.D. PH.D. prescribe most often?
Based on 2023 Medicare Part D data, MARC RUBENZIK, M.D. PH.D.'s most frequently prescribed drugs include Doxycycline Monohydrate, Fluorouracil, Vectical. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARC RUBENZIK, M.D. PH.D. accept Medicare?
MARC RUBENZIK, M.D. PH.D. appears in CMS Medicare data with 372 Part D claims and 264 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARC RUBENZIK, M.D. PH.D.'s credentials?
MARC RUBENZIK, M.D. PH.D.'s NPI is 1326240557 with credentials M.D. PH.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

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.
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