2026 NPPES data Dermatology Physician NPI 1336112622 MD
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THOMAS DAY, MD

Dermatology Physician in WINDSOR MILL, 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
2K
Medicare Part D claims · 347 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
0/100
▼ 83 pts below national avg 83.1 · [object Object]
Industry payments
$155.65
8 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: THOMAS DAY, MD is a Dermatology Physician ([object Object]) practicing in WINDSOR MILL, Maryland with a Medicare Part D prescribing footprint of 2K claims across 347 beneficiaries — 11% brand-name prescribing . Their CMS MIPS Final Score of 0/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $155.65 across 8 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: THOMAS DAY, MD reported a CMS MIPS final score of 0 out of 100, below the 83.1 national average, and filed 1,804 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)

THOMAS DAY, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

THOMAS DAY, MD at a glance

Below national average

NPI registry status

Active

Issued 02/08/2006

NPI 1336112622

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

1,804 147% vs specialty avg

2023 prescription claims

Specialty avg: 729

MIPS final score

0/100 83.1% pts

Penalty band 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

THOMAS DAY, MD's 2023 MIPS final score plotted against the Dermatology Physician national average

Below national average
MIPS Final Score
0/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Dermatology Physician) — 0/100 vs national avg 83.1

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

THOMAS DAY, MD is a Dermatology Physician provider practicing in WINDSOR MILL, Maryland, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1336112622. 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.

THOMAS DAY, MD appears in the CMS NPPES registry as a Dermatology Physician provider holding MD credentials at 7001 JOHNNYCAKE RD STE 104, WINDSOR MILL, MD, 21244, with a listed phone of (410) 747-4711. NPI 1336112622 was issued on 02/08/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DAY 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 1,804 prescription claims written by this provider, covering 347 Medicare beneficiaries and totaling roughly $621K in drug spend, split 11% brand-name and 89% 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 0/100 for the 2023 performance year (Quality 0), 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

7001 JOHNNYCAKE RD STE 104
WINDSOR MILL, MD 21244

Provider Details

NPI 1336112622
Specialty Dermatology Physician
Credentials MD
Gender Male
NPI Issued 02/08/2006

CMS Quality Score (MIPS)

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

0
Final Score
Avg: 83.1
0
Quality

Reporting: Individual

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 THOMAS DAY, MD. Source: openpaymentsdata.cms.gov.

Total received

$156

Largest payer

Incyte Corporation

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.

Brand vs generic prescribing mix · Typical

THOMAS DAY, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 1,804 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.

1,804
Total Claims
$621K
Total Drug Cost
347
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,142
Total Day Supply
61,835
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$515K
Generic Drug Cost
$105K
Antibiotic Claims
63

Patient Demographics

Average Patient Age
70.1 years
Avg HCC Risk Score
1.11
Gender Split
81% female / 19% male
Age Distribution
<65: 67, 65-74: 154, 75-84: 108, 85+: 18

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Triamcinolone Acetonide
240
Tacrolimus
195
Ciclopirox
169
Fluocinolone Acetonide
Fluocinolone/Shower Cap
127
Hydrocortisone
113
Betamethasone Dipropionate
89
Dupixent Pen
Dupilumab
84
Hydroxyzine Hcl
77
Ketoconazole
77

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

Dermatology Physician Overview

How THOMAS DAY, 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

THOMAS DAY, MD's 1,804 claims are above 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 DAY.

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

Frequently Asked Questions

What is THOMAS DAY, MD's specialty?
THOMAS DAY, MD specializes in Dermatology Physician and practices in WINDSOR MILL, Maryland. Credentials: MD.
How much does THOMAS DAY, MD prescribe under Medicare Part D?
In 2023, THOMAS DAY, MD wrote 1,804 Medicare Part D claims totaling $621K in drug costs for 347 beneficiaries.
What is THOMAS DAY, MD's Medicare quality score?
THOMAS DAY, MD has a CMS MIPS Final Score of 0/100 (Quality: 0). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is THOMAS DAY, MD located?
THOMAS DAY, MD is located at 7001 JOHNNYCAKE RD STE 104, WINDSOR MILL, MD, 21244. Phone: (410) 747-4711.
What is THOMAS DAY, MD's NPI number?
THOMAS DAY, MD's National Provider Identifier (NPI) is 1336112622, issued on 02/08/2006.
Does THOMAS DAY, MD prescribe more brand-name or generic drugs?
THOMAS DAY, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $515K 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 THOMAS DAY, MD prescribe most often?
Based on 2023 Medicare Part D data, THOMAS DAY, MD's most frequently prescribed drugs include Triamcinolone Acetonide, Tacrolimus, Ciclopirox. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS DAY, MD accept Medicare?
THOMAS DAY, MD appears in CMS Medicare data with 1,804 Part D claims and 347 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS DAY, MD's credentials?
THOMAS DAY, MD's NPI is 1336112622 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