Margaret Williams
NPI 1346604071 · Clinical Pathology Physician · Salt Lake City, UT
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Williams is a Clinical Pathology Physician provider in Salt Lake City, UT (NPI 1346604071).
Provider details
- NPI number
- 1346604071
- Entity type
- Individual
- Primary specialty
- Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- Yes
- License
- 10516466-1205 (UT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
514 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 138 | $26 |
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 92 | $35 |
| Flow Cytometry Technique for Dna Or Cell Analysis, 16 Or More Markers88189 | 73 | $78 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 42 | $32 |
| Bone Marrow, Smear Interpretation85097 | 41 | $45 |
| Preparation of Tissue for Examination By Removing Any Calcium Present88311 | 41 | $11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-04-08
- Last updated
- 2022-08-02
- Certified
- 2022-08-02
Frequently asked questions
- What is Margaret Williams's NPI number?
- Margaret Williams's National Provider Identifier (NPI) is 1346604071, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Williams's specialty?
- Margaret Williams is listed in the NPPES registry with a primary specialty of Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Williams located?
- Margaret Williams's practice location on file with NPPES is 50 N Medical Dr, Salt Lake City, UT 84132-0001.
- What is Margaret Williams's phone number?
- The practice phone number listed in the NPPES registry for Margaret Williams is (801) 581-2121.
- Does Margaret Williams accept Medicare?
- Margaret Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Williams's NPI active?
- Yes — Margaret Williams's NPI (1346604071) is active in the NPPES registry as of the last update on 2022-08-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.