NPPES file of Aug 9, 2026

Mary Catherine Watson Clayton

Certified Registered Nurse Anesthetist · West Columbia, SC

Mary Catherine Watson Clayton is a certified registered nurse anesthetist with a practice address in West Columbia, South Carolina, and NPI 1215598057, issued on Jun 24, 2019. Check the license (South Carolina 126144, as entered in NPPES) with the South Carolina board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1215598057
Name
Mary Catherine Watson Clayton
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License number
126144 SC
Self-reported in NPPES; status is on the state search
Practice location
2720 Sunset Blvd., West Columbia, SC 29169
Phone
(803) 935-8292
Enumerated
Jun 24, 2019
Record last updated
Mar 6, 2024
Medicare enrollment
Enrolled (PECOS I20191007001043); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2720 Sunset Blvd.

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Hope Brainard, DOHospitalist Physician1669652046
  2. Joseph Burkett, MDEmergency Medicine Physician1588892590
  3. Debora Froese, CRNACertified Registered Nurse Anesthetist1396831012
  4. Aimee Gondi, CRNACertified Registered Nurse Anesthetist1033203617
  5. Steven Hayes, MDEmergency Medicine Physician1407822398
  6. Sameena Khan, M.DHospitalist Physician1235381971

Verify Mary Catherine Watson Clayton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich South Carolina board licenses this profession
    Search for license 126144
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the South Carolina license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 83 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score80.5
  2. Costout of 100 · 30%72.2
  3. Promoting interoperabilityout of 100 · 25%89.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $69.87

4 payments; by number, the most common kind was food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 24,076 providers of this specialty with any payment received $135.08 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mary Catherine Clayton$69.87
  2. Specialty average$135.08

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Beach Anesthesia, LLCColumbia, SC
  2. Lexington Health IncColumbia, SC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Catherine Watson Clayton among 1,868 certified registered nurse anesthetist records in South Carolina

Mary Catherine Watson Clayton is one of 1,868 certified registered nurse anesthetist records with a practice address in South Carolina. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 78% of them.

  • NPI issued2019 · 78% of these records are older, 20% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2019 · median 2012 among the 1,415 with a school on file
  • Record last updated2024 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

112 certified registered nurse anesthetist records list a practice address in West Columbia

They are 112 of the 1,887 NPPES records with a practice address in West Columbia, and 1,868 certified registered nurse anesthetist records in South Carolina.

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Leslee BerlinWest Columbia, SC 291691558338665
  2. Anthony Bryant, CRNAWest Columbia, SC 291691326001082
  3. Cherie Burke, CRNAWest Columbia, SC 291691427052232
  4. Denise Carey, CRNAWest Columbia, SC 291691548233224
  5. Jennifer Dablock, CRNAWest Columbia, SC 291691144295494
  6. Dana Flinner, CRNAWest Columbia, SC 291691447227822
  7. Timothy Kelly, CRNAWest Columbia, SC 291691770567836
  8. William Luce, CRNAWest Columbia, SC 291691992708614

Common questions

What is Mary Catherine Watson Clayton's NPI number?

Mary Catherine Watson Clayton's National Provider Identifier (NPI) is 1215598057, issued on Jun 24, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Mary Catherine Watson Clayton located?

The NPPES record lists a practice address at 2720 Sunset Blvd., West Columbia, SC, 29169. Phone: (803) 935-8292. Providers update this record themselves, so call before visiting.

How can I verify Mary Catherine Watson Clayton's license?

NPPES lists South Carolina license number 126144, as entered by the provider. Search the South Carolina board that licenses this profession; the NPPES record confirms identity only.

What is Mary Catherine Watson Clayton's MIPS final score?

The 2023 MIPS final score is 83 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.