William Fix, MD
NPI 1063972040 · Dermatology Physician · Boulder, CO
Enrolled with Medicare as Practitioner - Dermatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Fix, MD is a Dermatology Physician provider in Boulder, CO (NPI 1063972040).
Provider details
- NPI number
- 1063972040
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A6000567 (KS)
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 tenure25% of score
7 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
1,154 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 | 518 | $6 |
| Destruction of Precancer Skin Growth, 1 Growth17000 | 163 | $50 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 131 | $123 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 85 | $159 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 77 | $87 |
| Destruction of Skin Growth, 1-14 Growths |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 65 | 40 |
| Triamcinolone Acetonide | 34 | 27 |
| Hydrocortisone | 33 | 23 |
| Mupirocin | 26 | 22 |
| Clobetasol Propionate | 19 | 11 |
| Fluorouracil | 17 | 17 |
| Betamethasone Dipropionate | 16 | — |
| Fluocinonide | 13 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$566 across 19 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
- 2019-03-25
- Last updated
- 2025-06-03
- Certified
- 2025-06-03
Frequently asked questions
- What is William Fix's NPI number?
- William Fix's National Provider Identifier (NPI) is 1063972040, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Fix's specialty?
- William Fix is listed in the NPPES registry with a primary specialty of Dermatology Physician (Allopathic & Osteopathic Physicians).
- Where is William Fix located?
- William Fix's practice location on file with NPPES is 3434 47th St Ste 200, Boulder, CO 80301-1817.
- What is William Fix's phone number?
- The practice phone number listed in the NPPES registry for William Fix is (303) 444-8100.
- Does William Fix accept Medicare?
- William Fix is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Fix's NPI active?
- Yes — William Fix's NPI (1063972040) is active in the NPPES registry as of the last update on 2025-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.