William Couldwell, MD
NPI 1265522858 · Neurological Surgery Physician · Salt Lake City, UT
Enrolled with Medicare as Practitioner - Neurosurgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Couldwell, MD is a Neurological Surgery Physician provider in Salt Lake City, UT (NPI 1265522858).
Provider details
- NPI number
- 1265522858
- Entity type
- Individual
- Primary specialty
- Neurological Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 5022518-1205 (UT)
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
19 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
90 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 19 | $129 |
| Use of Operating Microscope69990 | 16 | $209 |
| Self Soft Tissue Graft15769 | 15 | $232 |
| Removal of Growth Or Tissue of Skull Base Within Brain Membrane61616 | 15 | $2,427 |
| Computer-Assisted Procedure Inside Brain61781 | 13 | $228 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$151 across 5 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
- 2006-10-13
- Last updated
- 2025-11-07
- Certified
- 2025-11-07
Frequently asked questions
- What is William Couldwell's NPI number?
- William Couldwell's National Provider Identifier (NPI) is 1265522858, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Couldwell's specialty?
- William Couldwell is listed in the NPPES registry with a primary specialty of Neurological Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is William Couldwell located?
- William Couldwell's practice location on file with NPPES is 175 N Medical Dr, Salt Lake City, UT 84112-1103.
- What is William Couldwell's phone number?
- The practice phone number listed in the NPPES registry for William Couldwell is (801) 585-6065.
- Does William Couldwell accept Medicare?
- William Couldwell is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Couldwell's NPI active?
- Yes — William Couldwell's NPI (1265522858) is active in the NPPES registry as of the last update on 2025-11-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.