Mark Vierra, M.D.
NPI 1730187121 · Specialist · Poway, CA
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Vierra, M.D. is a Specialist provider in Poway, CA (NPI 1730187121).
Provider details
- NPI number
- 1730187121
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A64866 (CA)
Specialties & taxonomies
Other Service Providers
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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
9,104 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 | 4,043 | $8 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,149 | $100 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 1,089 | $57 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 717 | $140 |
| Biopsy of Related Skin Growth, First Growth11102 | 532 | $103 |
| Destruction of Skin Growth, 1-14 Growths |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Hyclate | 128 | 57 |
| Triamcinolone Acetonide | 70 | 48 |
| Ketoconazole | 58 | 39 |
| Valacyclovir Hclbrand: Valacyclovir | 58 | 30 |
| Hydrocortisone | 50 | 35 |
| Clobetasol Propionate | 49 | 38 |
| Fluticasone Propionate | 27 | 22 |
| Ciclopirox Olaminebrand: Ciclopirox |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$425 across 47 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
- 2005-07-11
- Last updated
- 2010-07-15
Frequently asked questions
- What is Mark Vierra's NPI number?
- Mark Vierra's National Provider Identifier (NPI) is 1730187121, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Vierra's specialty?
- Mark Vierra is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Mark Vierra located?
- Mark Vierra's practice location on file with NPPES is 15525 Pomerado Rd, Poway, CA 92064-2435.
- What is Mark Vierra's phone number?
- The practice phone number listed in the NPPES registry for Mark Vierra is (858) 451-3311.
- Does Mark Vierra accept Medicare?
- Mark Vierra is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Vierra's NPI active?
- Yes — Mark Vierra's NPI (1730187121) is active in the NPPES registry as of the last update on 2010-07-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.