Brett Williamson
NPI 1215994017 · Certified Registered Nurse Anesthetist · Greenville, SC
Enrolled with Medicare as Practitioner - Certified Registered Nurse Anesthetist (crna) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Brett Williamson is a Certified Registered Nurse Anesthetist provider in Greenville, SC (NPI 1215994017).
Provider details
- NPI number
- 1215994017
- Entity type
- Individual
- Primary specialty
- Certified Registered Nurse AnesthetistPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 1272 (SC)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$67 across 2 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
Additional practice locations (1)
- 5 Medical ParkPalmetto Health RichlandColumbia, SC 29203Phone: (803) 296-2548Fax: (803) 296-2525
Registry dates
- Enumerated
- 2006-04-27
- Last updated
- 2022-02-03
- Certified
- 2022-02-03
Frequently asked questions
- What is Brett Williamson's NPI number?
- Brett Williamson's National Provider Identifier (NPI) is 1215994017, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Brett Williamson's specialty?
- Brett Williamson is listed in the NPPES registry with a primary specialty of Certified Registered Nurse Anesthetist (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Brett Williamson located?
- Brett Williamson's practice location on file with NPPES is 7 Independence PT Ste 300, Greenville, SC 29615-4569.
- What is Brett Williamson's phone number?
- The practice phone number listed in the NPPES registry for Brett Williamson is (864) 522-3700.
- Does Brett Williamson accept Medicare?
- Brett Williamson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Brett Williamson's NPI active?
- Yes — Brett Williamson's NPI (1215994017) is active in the NPPES registry as of the last update on 2022-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.