Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. William Crane Fix, MD

Individual provider Dermatology Physician · NPI 1063972040

Mr. William Crane Fix, MD is a Dermatology in Boulder, Colorado. Graduated from Perelman School of Med at the University of Pennsylvania in 2019, 7 years ago. Practices with K2 Dermatology LLC, a 6-clinician group and accepts Medicare assignment. Licensed in Colorado and Kansas.

Years since qualifying
7
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
CO, KS
In the registry since
2019
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3434 47th St Ste 200
Boulder, CO 80301-1817
Phone: (303) 444-8100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence DR.0072825 (CO)
Dermatology Physician Taxonomy 207N00000X · Licence A6000567 (KS)

Record details

NPI number1063972040
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 25, 2019
Last updated in NPPESJune 3, 2025
Certification dateJune 3, 2025
Mailing address3434 47th St Ste 200, Boulder, CO 80301-1817

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDERMATOLOGY
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 2019 (7 years in practice)
Group practice K2 Dermatology Llc — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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