2026 NPPES data Dermatology Physician NPI 1326245895 MD
Verify on CMS →

MARY MAIBERGER, MD

Dermatology Physician in ROCKVILLE, Maryland. 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
86
Medicare Part D claims · 36 beneficiaries · Dermatology Physician avg: 729
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
What the federal data reveals: MARY MAIBERGER, MD is a Dermatology Physician ([object Object]) practicing in ROCKVILLE, Maryland with a Medicare Part D prescribing footprint of 86 claims across 36 beneficiaries . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: MARY MAIBERGER, MD reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 86 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)

MARY MAIBERGER, 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).

MARY MAIBERGER, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 06/28/2007

NPI 1326245895

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

86 88% vs specialty avg

2023 prescription claims

Specialty avg: 729

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Maryland

How Dermatology Physician compares to other specialties among Maryland providers

Maryland providers

Dermatology Physician share within Maryland

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

Medicare quality performance — MIPS

MARY MAIBERGER, MD's 2023 MIPS final score plotted against the Dermatology Physician national average

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

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

0%100%National avg83%99%
MIPS final score (Dermatology Physician) — 100/100 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).

MARY MAIBERGER, MD is a Dermatology Physician provider practicing in ROCKVILLE, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1326245895. 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.

MARY MAIBERGER, MD appears in the CMS NPPES registry as a Dermatology Physician provider holding MD credentials at 6163 EXECUTIVE BLVD, ROCKVILLE, MD, 20852, with a listed phone of (301) 984-3000. NPI 1326245895 was issued on 06/28/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MAIBERGER 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 86 prescription claims written by this provider, covering 36 Medicare beneficiaries and totaling roughly $30K in drug spend. 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 100/100 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

6163 EXECUTIVE BLVD
ROCKVILLE, MD 20852

Provider Details

NPI 1326245895
Specialty Dermatology Physician
Credentials MD
Gender Female
NPI Issued 06/28/2007

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MARY MAIBERGER, 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.

ANNE ARUNDEL DERMATOLOGY PA
ROCKVILLE, MD

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

86
Total Claims
$30K
Total Drug Cost
36
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
109
Total Day Supply
2,697
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
74.6 years
Avg HCC Risk Score
0.79
Gender Split
69% female / 31% 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
Valacyclovir
Valacyclovir Hcl
18

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

Dermatology Physician Overview

How MARY MAIBERGER, 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

MARY MAIBERGER, MD's 86 claims are below 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 MAIBERGER.

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

Frequently Asked Questions

What is MARY MAIBERGER, MD's specialty?
MARY MAIBERGER, MD specializes in Dermatology Physician and practices in ROCKVILLE, Maryland. Credentials: MD.
How much does MARY MAIBERGER, MD prescribe under Medicare Part D?
In 2023, MARY MAIBERGER, MD wrote 86 Medicare Part D claims totaling $30K in drug costs for 36 beneficiaries.
What is MARY MAIBERGER, MD's Medicare quality score?
MARY MAIBERGER, MD has a CMS MIPS Final Score of 100/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MARY MAIBERGER, MD located?
MARY MAIBERGER, MD is located at 6163 EXECUTIVE BLVD, ROCKVILLE, MD, 20852. Phone: (301) 984-3000.
What is MARY MAIBERGER, MD's NPI number?
MARY MAIBERGER, MD's National Provider Identifier (NPI) is 1326245895, issued on 06/28/2007.
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 MARY MAIBERGER, MD prescribe most often?
Based on 2023 Medicare Part D data, MARY MAIBERGER, MD's most frequently prescribed drugs include Valacyclovir. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARY MAIBERGER, MD accept Medicare?
MARY MAIBERGER, MD appears in CMS Medicare data with 86 Part D claims and 36 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARY MAIBERGER, MD's credentials?
MARY MAIBERGER, MD's NPI is 1326245895 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