William Mortensen, M.D.
NPI 1700156064 · Dermatology Physician · Reno, NV
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Mortensen, M.D. is a Dermatology Physician provider in Reno, NV (NPI 1700156064).
Provider details
- NPI number
- 1700156064
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 15717 (NV)
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
14 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
10,129 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 | 5,342 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 1,561 | $88 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 1,270 | $49 |
| Destruction of Skin Growth, 1-14 Growths17110 | 711 | $104 |
| Removal and Microscopic Exam of Growth of Head, Neck, Hands, Feet, Or Genitals, 1-5 Tissue Blocks17311 | 206 | $649 |
| Destruction of Precancer Skin Growth, 15 Or More Growths |
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 | 332 | 224 |
| Ketoconazole | 166 | 78 |
| Clindamycin Phosphate | 98 | 44 |
| Clobetasol Propionate | 78 | 40 |
| Doxycycline Hyclate | 52 | 25 |
| Betamethasone/Propylene Glycbrand: Betamethasone Diprop Augmented | 38 | 22 |
| Fluorouracil | 34 | 24 |
| Cephalexin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,591 across 210 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
- 2012-01-04
- Last updated
- 2026-03-04
- Certified
- 2026-03-04
Frequently asked questions
- What is William Mortensen's NPI number?
- William Mortensen's National Provider Identifier (NPI) is 1700156064, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Mortensen's specialty?
- William Mortensen is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is William Mortensen located?
- William Mortensen's practice location on file with NPPES is 500 Damonte Ranch Pkwy, Reno, NV 89521-5912.
- What is William Mortensen's phone number?
- The practice phone number listed in the NPPES registry for William Mortensen is (775) 829-1212.
- Does William Mortensen accept Medicare?
- William Mortensen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Mortensen's NPI active?
- Yes — William Mortensen's NPI (1700156064) is active in the NPPES registry as of the last update on 2026-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.