David Twardzik, M.D.
NPI 1457422925 · Dermatology Physician · Quakertown, PA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Twardzik, M.D. is a Dermatology Physician provider in Quakertown, PA (NPI 1457422925).
Provider details
- NPI number
- 1457422925
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- MD072426L (PA)
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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
6,847 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) |
|---|---|---|
| Destruction of Precancer Skin Growth, 2-14 Growths17003 | 2,063 | $7 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,608 | $130 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 1,201 | $45 |
| Destruction of Skin Growth, 1-14 Growths17110 | 1,007 | $114 |
| Biopsy of Related Skin Growth, First Growth11102 | 386 | $78 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Clobetasol Propionate | 140 | 78 |
| Ciclopirox Olaminebrand: Ciclopirox | 92 | 42 |
| Hydrocortisone | 22 | 11 |
| Tretinoin | 21 | 11 |
| Triamcinolone Acetonide | 15 | — |
| Econazole Nitrate | 14 | — |
| Hydrocortisone Valerate | 14 | — |
| Ammonium Lactate | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,343 across 83 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
Registry dates
- Enumerated
- 2006-11-13
- Last updated
- 2007-07-08
Frequently asked questions
- What is David Twardzik's NPI number?
- David Twardzik's National Provider Identifier (NPI) is 1457422925, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Twardzik's specialty?
- David Twardzik is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is David Twardzik located?
- David Twardzik's practice location on file with NPPES is 1021 Park Ave, Quakertown, PA 18951-1573.
- What is David Twardzik's phone number?
- The practice phone number listed in the NPPES registry for David Twardzik is (215) 538-2500.
- Does David Twardzik accept Medicare?
- David Twardzik is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Twardzik's NPI active?
- Yes — David Twardzik's NPI (1457422925) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.