William Crane Fix, MD
Dermatology Physician · Boulder, CO
William Crane Fix, MD is a dermatology physician with a practice address in Boulder, Colorado, and NPI 1063972040, issued on Mar 25, 2019. Check the license (Colorado DR.0072825, as entered in NPPES) on the Colorado Medical Board; the Medicare figures below come from public CMS files.
- Name
- William Crane Fix
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License numbers
- DR.0072825 CO
A6000567 KS
Self-reported in NPPES; status is on the state search - Practice location
- 3434 47TH St Ste 200, Boulder, CO 80301
- Phone
- (303) 444-8100
- Enumerated
- Mar 25, 2019
- Record last updated
- Jun 3, 2025
- Medicare enrollment
- Enrolled (PECOS I20240507003279); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 2019
- Entity
- Type 1 · individual
Also registered at 3434 47TH St Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cathy Koger, D.O.Dermatology Physician1902194871
- Amanda Lapointe, PA-CPhysician Assistant1336339894
- Kirsten RevittePhysician Assistant1124636568
Verify William Crane Fix in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersColorado Medical Board
Search for license DR.0072825Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
55% fewer Medicare Part D claims than the average dermatology physician in 2024
358 Medicare Part D claims for 167 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Ketoconazole65 claims
- Triamcinolone Acetonide34 claims
- Hydrocortisone33 claims
- Mupirocin26 claims
- Clobetasol Propionate19 claims
- Fluorouracil17 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $565.91
19 payments; by number, the most common kind was food and beverage; the largest payer was Merz North America, Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- K2 Dermatology LLCBoulder, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Dermatology Physician providers in Colorado
There are 305 dermatology physician records in Colorado.
Other dermatology physician records in Colorado
- Phillip Albright, M.D.Denver, CO1588003628
- Paola Aldana, MDDenver, CO1720615198
- Theodore Alkousakis, M.D.Aurora, CO1992830269
- Carol Alonso, M.D.Westminster, CO1386962256
- Mahsa Amir, MDParker, CO1225477359
- Reagan Anderson, D.O.Colorado Springs, CO1356334965
- Nicole Annest, M.D.Lafayette, CO1205842051
- Harvey Arbuckle, MDLafayette, CO1982758264
- Cheryl Armstrong, MDDenver, CO1194705863
- Harleen Arora, MDDenver, CO1205332764
Common questions
What is William Crane Fix, MD's NPI number?
William Crane Fix, MD's National Provider Identifier (NPI) is 1063972040, issued on Mar 25, 2019. An NPI identifies a provider in billing; it is not a license.
Where is William Crane Fix, MD located?
The NPPES record lists a practice address at 3434 47TH St Ste 200, Boulder, CO, 80301. Phone: (303) 444-8100. Providers update this record themselves, so call before visiting.
How can I verify William Crane Fix, MD's license?
NPPES lists Colorado license number DR.0072825, as entered by the provider. Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Crane Fix, MD prescribe under Medicare Part D?
In 2024, William Crane Fix, MD had 358 Medicare Part D claims for 167 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.