NPI registry status
Active
2026 NPPES data Dermatology Physician NPI 1700310240 MD
Verify on CMS → Marcus Zaayman, MD
Dermatology Physician in Annapolis, 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 15,011 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
22
Medicare Part D claims · 12 beneficiaries · Dermatology Physician avg: 799
Industry payments
$305.28
5 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Marcus Zaayman, MD filed 22 Medicare Part D claims in 2024 as a Dermatology Physician in Annapolis, Maryland.
- 22
- Part D claims, 2024
- $305.28
- industry payments (Sunshine Act)
- ≥0th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Marcus Zaayman, MD
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1700310240), first enumerated 04/11/2017.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 22 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Practices in an ABMS-board-eligible specialty; board certification not confirmed in federal records.
- Reported
Industry payment transparency
$305.28 in reported industry payments (5 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1700310240 · Dermatology Physician
NPI-10 · ENUM-RECENT · TAX-MID · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1700310240
- ENUM-RECENT 2017
- TAX-MID 15K Dermatology Physician
- RX-TRACE 22
- BOOK-THIN 332 in Maryland
- PHOTO-ENUM Kelsey Ferrell, DO · 2017
Marcus Zaayman, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
22 ≥ 0th percentile 0% of 1,416,883 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. 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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
◑
Board-eligible specialty (heuristic, not verified)
Marcus Zaayman, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Marcus Zaayman, MD?
Quality data not reportedPrimary specialty
Dermatology Physician
Medicare Part D claims
22 97% vs specialty avg
Specialty distribution in Maryland
How Dermatology Physician compares to other specialties among Maryland providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Dermatology Physician. Verify directly:
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).
Practice Address
Provider Details
| NPI | 1700310240 |
|---|---|
| Specialty | Dermatology Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 04/11/2017 |
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 Marcus Zaayman, MD. Source: openpaymentsdata.cms.gov.
Total received
$305
Largest payer
Galderma Laboratories, L.P.
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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
22
Total Claims
$947
Total Drug Cost
12
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 30
- Total Day Supply
- 860
- Brand Drug Cost
- $0
- Generic Drug Cost
- $947
Patient Demographics
- Average Patient Age
- 72.8 years
- Avg HCC Risk Score
- 1.23
- Age Distribution
- <65: 0, 65-74: N/A, 75-84: N/A, 85+: N/A
Dermatology Physician Overview
How Marcus Zaayman, MD fits within the Dermatology Physician landscape nationally.
15,011
Dermatology Physician Providers in US
53
States with Dermatology Physician
799
Avg Claims per Provider
Marcus Zaayman, MD's 22 claims are below the specialty average of 799.
Nationwide Dermatology Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Zaayman, both outside Maryland so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Dermatology Physician Providers in Maryland
Other clinicians with the same primary specialty enrolled in Maryland, drawn from the same CMS NPPES roster as Zaayman.
One of 332 Dermatology Physician providers enrolled in Maryland, 5 are shown here.
Dr. Damien Abreu
MD, PHD
Silver Spring, MD
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
Compare Dermatology Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Marcus Zaayman, MD's specialty? ▼
Marcus Zaayman, MD specializes in Dermatology Physician and practices in Annapolis, Maryland. Credentials: MD.
How much does Marcus Zaayman, MD prescribe under Medicare Part D? ▼
In 2024, Marcus Zaayman, MD wrote 22 Medicare Part D claims totaling $947 in drug costs for 12 beneficiaries.
Where is Marcus Zaayman, MD located? ▼
Marcus Zaayman, MD is located at 180 ADMIRAL COCHRANE DR STE 430, Annapolis, MD, 21401. Phone: (410) 339-0760.
What is Marcus Zaayman, MD's NPI number? ▼
Marcus Zaayman, MD's National Provider Identifier (NPI) is 1700310240, issued on 04/11/2017.
How many Dermatology Physician providers are there in the US? ▼
There are 15,011 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 799 Medicare Part D claims per year.
Does Marcus Zaayman, MD accept Medicare? ▼
Marcus Zaayman, MD appears in CMS Medicare data with 22 Part D claims and 12 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Marcus Zaayman, MD's credentials? ▼
Marcus Zaayman, MD's NPI is 1700310240 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 (2024). 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 August 2026 (NPPES) / 2024 (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
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 August 2026.