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Edit this profileAt a glance
- 3434 47Th St Ste 200, Boulder, CO 80301
About Dr. Fix
William C. Fix, MD is a healthcare provider in Boulder, CO specializing in dermatology. William trained at Perelman School of Med at the University of Pennsylvania, graduating in 2019. According to Medicare claims data, William cared for 756 Medicare patients across 1,169 services. The services billed most often include destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. This provider record is associated with NPI 1063972040.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (303) 444-8100
- Email not available
Practice Locations
3434 47TH ST STE 200
Boulder, CO 80301
Conditions Commonly Evaluated or Treated
Within Dermatology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Acne and follicular disorders
Eczema and inflammatory skin disease
Infections and infestations
Pigment, growths, and benign lesions
Skin cancer
Urticaria, itch, and vascular
Autoimmune and connective tissue
Infections
Rashes & allergy
Skin growths
Procedures & services
Most searched procedures
Diagnostic procedures
Lesion treatment
- Complex skin lesion excision
- Cryotherapy for skin lesions
- Electrodesiccation and curettage
- Incision and drainage of an abscess
Medical dermatology treatment
Cosmetic
Cosmetic and minor surgery
Cosmetic dermatology
Diagnostic
General dermatology
Infections
Medical dermatology
Nails & hair
Skin cancer surgery
Skin growths
Procedures Most Often Billed to Medicare
1,169 services · 756 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Destruction of precancer skin growth, 2-14 growths | Procedure | 17003 |
518 | As often as other peers in Dermatology |
| Destruction of precancer skin growth, 1 growth | Procedure | 17000 |
163 | As often as other peers in Dermatology |
| Destruction of skin growth, 1-14 growths | Procedure | 17110 |
74 | As often as other peers in Dermatology |
| Biopsy of related skin growth, first growth | Procedure | 11102 |
39 | Less often than most peers in Dermatology |
| Complicated repair of wound of trunk, 2.6-7.5 cm | Procedure | 13101 |
13 | Less often than most peers in Dermatology |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
15 | Less often than most peers in Dermatology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
131 | As often as other peers in Dermatology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
85 | More often than most peers in Dermatology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
77 | Less often than most peers in Dermatology |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
54 | As often as other peers in Dermatology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other dermatologists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other dermatologists in Boulder 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Perelman School of Med at the University of Pennsylvania 8
Other providers in the same specialty who trained at the same institution.
Class of 2019 at Perelman School of Med at the University of Pennsylvania 8
Providers who graduated from the same medical school in the same year.
Also performs Destruction of precancer skin growth, 2-14 growths 8
Providers in CO who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Fix?
Dr. Fix is a dermatologist (skin doctor) in Boulder, CO. That is the designation recorded for this NPI in the federal registry, where it is listed as “Dermatology”.
NPI registry
What is Dr. Fix's address?
Dr. Fix is listed at 3434 47Th St Ste 200, Boulder, CO 80301. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Fix?
The number on file is (303) 444-8100. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Fix's NPI number?
Dr. Fix's National Provider Identifier is 1063972040. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Fix train?
Dr. Fix attended Perelman School of Med at the University of Pennsylvania, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Fix been practicing?
Dr. Fix has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Fix perform?
According to Medicare billing data, Dr. Fix performs procedures including destruction of precancer skin growth, 2-14 growths, destruction of precancer skin growth, 1 growth and destruction of skin growth, 1-14 growths, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Fix confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Fix. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.