2026 NPPES data Vascular Neurology Physician NPI 1063405975 M.D.
Verify on CMS →

MARY DERBENWICK, M.D.

Vascular Neurology Physician in DAYTONA BEACH, Florida. 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
2K
Medicare Part D claims · 341 beneficiaries · Vascular Neurology Physician avg: 378
Generic prescribing
99%
generic claims · 1% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: MARY DERBENWICK, M.D. is a Vascular Neurology Physician ([object Object]) practicing in DAYTONA BEACH, Florida with a Medicare Part D prescribing footprint of 2K claims across 341 beneficiaries — 1% brand-name prescribing .

What stands out: MARY DERBENWICK, M.D. filed 1,772 Medicare Part D claims in 2023 across DAYTONA BEACH, Florida. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MARY DERBENWICK, M.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).

MARY DERBENWICK, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 08/25/2005

NPI 1063405975

Primary specialty

Vascular Neurology Physician

Niche

555 US NPIs in this specialty

Medicare Part D claims

1,772 369% vs specialty avg

2023 prescription claims

Specialty avg: 378

Specialty distribution in Florida

How Vascular Neurology Physician compares to other specialties among Florida providers

Florida providers

Vascular Neurology Physician share within Florida

1. Vascular Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Vascular Neurology Physician share within Florida

Specialty board-certification context

Estimated specialty board-certified rate — Vascular Neurology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Vascular Neurology Physician ABMS/AOA estimate

Est. board-certified rate (Vascular Neurology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Vascular Neurology 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).

MARY DERBENWICK, M.D. is a Vascular Neurology Physician provider practicing in DAYTONA BEACH, Florida, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1063405975. 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 DERBENWICK, M.D. appears in the CMS NPPES registry as a Vascular Neurology Physician provider holding M.D. credentials at 350 N CLYDE MORRIS BLVD, DAYTONA BEACH, FL, 32114, with a listed phone of (386) 238-3244. NPI 1063405975 was issued on 08/25/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DERBENWICK 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 1,772 prescription claims written by this provider, covering 341 Medicare beneficiaries and totaling roughly $98K in drug spend, split 1% brand-name and 99% 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.

Vascular Neurology Physician is a narrow specialty nationwide, with 555 enrolled providers across 47 states and an average of 378 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

350 N CLYDE MORRIS BLVD
DAYTONA BEACH, FL 32114

Provider Details

NPI 1063405975
Specialty Vascular Neurology Physician
Credentials M.D.
Gender Female
NPI Issued 08/25/2005

Hospital and facility affiliations

Facilities where MARY DERBENWICK, M.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.

FLORIDA HEALTH CARE PLAN INC
DAYTONA BEACH, FL

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 — Florida FLDOH 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 ~75K Florida medical licensees in 2023 — they are NOT specific to MARY DERBENWICK, M.D.. To verify MARY DERBENWICK, M.D.'s current license status, search the FLDOH public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

480
Total board actions, Florida 2023
Across 467 cases
6.40
Actions per 1,000 licensees
Florida statewide rate
monetary fine
Most common action type
138 cases

FLDOH 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 Florida disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

MARY DERBENWICK, M.D. — brand share 1.0%
Specialty average (est.)

1% brand-name claims vs 99% generic, on 1,772 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.

1,772
Total Claims
$98K
Total Drug Cost
341
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
4,105
Total Day Supply
122,219
Brand vs Generic
1% brand / 99% generic
Brand Drug Cost
$15K
Generic Drug Cost
$82K

Patient Demographics

Average Patient Age
74.0 years
Avg HCC Risk Score
1.72
Gender Split
65% female / 35% male
Age Distribution
<65: 41, 65-74: 128, 75-84: 124, 85+: 48

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Gabapentin
215
Memantine Hcl
179
Carbidopa-Levodopa
Carbidopa/Levodopa
140
Donepezil Hcl
123
Carbidopa-Levodopa Er
Carbidopa/Levodopa
95
Topiramate
80
Levetiracetam
75
Galantamine Er
Galantamine Hbr
66
Duloxetine Hcl
62
Primidone
55

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

Vascular Neurology Physician Overview

How MARY DERBENWICK, M.D. fits within the Vascular Neurology Physician landscape nationally.

555
Vascular Neurology Physician Providers in US
47
States with Vascular Neurology Physician
378
Avg Claims per Provider

MARY DERBENWICK, M.D.'s 1,772 claims are above the specialty average of 378.

Nearby Vascular Neurology Physician Providers in Florida

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

Compare Vascular Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARY DERBENWICK, M.D.'s specialty?
MARY DERBENWICK, M.D. specializes in Vascular Neurology Physician and practices in DAYTONA BEACH, Florida. Credentials: M.D..
How much does MARY DERBENWICK, M.D. prescribe under Medicare Part D?
In 2023, MARY DERBENWICK, M.D. wrote 1,772 Medicare Part D claims totaling $98K in drug costs for 341 beneficiaries.
Where is MARY DERBENWICK, M.D. located?
MARY DERBENWICK, M.D. is located at 350 N CLYDE MORRIS BLVD, DAYTONA BEACH, FL, 32114. Phone: (386) 238-3244.
What is MARY DERBENWICK, M.D.'s NPI number?
MARY DERBENWICK, M.D.'s National Provider Identifier (NPI) is 1063405975, issued on 08/25/2005.
Does MARY DERBENWICK, M.D. prescribe more brand-name or generic drugs?
MARY DERBENWICK, M.D.'s prescribing is 1% brand-name and 99% generic drugs by claim count, with $15K in brand drug costs.
How many Vascular Neurology Physician providers are there in the US?
There are 555 Vascular Neurology Physician providers across 47 states in the US. The average Vascular Neurology Physician provider writes 378 Medicare Part D claims per year.
What drugs does MARY DERBENWICK, M.D. prescribe most often?
Based on 2023 Medicare Part D data, MARY DERBENWICK, M.D.'s most frequently prescribed drugs include Gabapentin, Memantine Hcl, Carbidopa-Levodopa. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARY DERBENWICK, M.D. accept Medicare?
MARY DERBENWICK, M.D. appears in CMS Medicare data with 1,772 Part D claims and 341 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARY DERBENWICK, M.D.'s credentials?
MARY DERBENWICK, M.D.'s NPI is 1063405975 with credentials M.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