Andrew Werchniak, MD
NPI 1023075710 · Dermatology Physician · Portsmouth, NH
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Andrew Werchniak, MD is a Dermatology Physician provider in Portsmouth, NH (NPI 1023075710).
Provider details
- NPI number
- 1023075710
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 220406 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
7,988 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 | 3,769 | $7 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,513 | $91 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 1,367 | $60 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 460 | $128 |
| Destruction of Skin Growth, 1-14 Growths17110 | 289 | $111 |
| Biopsy of Related Skin Growth, First Growth |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Triamcinolone Acetonide | 216 | 152 |
| Ketoconazole | 117 | 56 |
| Clobetasol Propionate | 112 | 65 |
| Metronidazole | 109 | 55 |
| Minoxidil | 46 | 14 |
| Imiquimod | 33 | 20 |
| Fluorouracil | 32 | 28 |
| Minocycline Hcl | 28 | 13 |
Practice location
Mailing address
Additional practice locations (1)
- 171 Pleasant St Ste 101Concord, NH 03301-2625Phone: (603) 609-9344Fax: (603) 836-0147
Registry dates
- Enumerated
- 2006-04-27
- Last updated
- 2025-10-02
- Certified
- 2025-10-02
Frequently asked questions
- What is Andrew Werchniak's NPI number?
- Andrew Werchniak's National Provider Identifier (NPI) is 1023075710, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Andrew Werchniak's specialty?
- Andrew Werchniak is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is Andrew Werchniak located?
- Andrew Werchniak's practice location on file with NPPES is 330 Borthwick Ave Ste 303, Portsmouth, NH 03801-7109.
- What is Andrew Werchniak's phone number?
- The practice phone number listed in the NPPES registry for Andrew Werchniak is (603) 431-5205.
- Does Andrew Werchniak accept Medicare?
- Andrew Werchniak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Andrew Werchniak's NPI active?
- Yes — Andrew Werchniak's NPI (1023075710) is active in the NPPES registry as of the last update on 2025-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.