Thomas Day, MD
NPI 1336112622 · Dermatology Physician · Windsor Mill, MD
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Day, MD is a Dermatology Physician provider in Windsor Mill, MD (NPI 1336112622).
Provider details
- NPI number
- 1336112622
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- D0019058 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
735 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 319 | $89 |
| Destruction of Skin Growth, 1-14 Growths17110 | 138 | $112 |
| Injection Into Skin Growth, More Than 7 Growths11901 | 95 | $60 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 93 | $125 |
| Destruction of Skin Growth, 15 Or More Growths17111 | 57 | $130 |
| Injection Into Skin Growth, 1-7 Growths11900 | 18 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tacrolimus | 272 | 108 |
| Ciclopirox | 242 | 113 |
| Triamcinolone Acetonide | 236 | 127 |
| Fluocinolone/Shower Capbrand: Fluocinolone Acetonide | 179 | 93 |
| Hydrocortisone | 156 | 73 |
| Minoxidil | 153 | 32 |
| Dupilumabbrand: Dupixent Pen | 111 | 11 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$156 across 8 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 4000 W Northern ParkwayBaltimore, MD 21215-4473Phone: (410) 466-0184Fax: (410) 664-0027
Registry dates
- Enumerated
- 2006-02-08
- Last updated
- 2026-04-26
Frequently asked questions
- What is Thomas Day's NPI number?
- Thomas Day's National Provider Identifier (NPI) is 1336112622, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Day's specialty?
- Thomas Day is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Day located?
- Thomas Day's practice location on file with NPPES is 7001 Johnnycake Rd Ste 104, Windsor Mill, MD 21244.
- What is Thomas Day's phone number?
- The practice phone number listed in the NPPES registry for Thomas Day is (410) 747-4711.
- Does Thomas Day accept Medicare?
- Thomas Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Day's NPI active?
- Yes — Thomas Day's NPI (1336112622) is active in the NPPES registry as of the last update on 2026-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.