J Thomas Larson, CRNA
Certified Registered Nurse Anesthetist · Rapid City, SD
J Thomas Larson, CRNA is a certified registered nurse anesthetist with a practice address in Rapid City, South Dakota, and NPI 1558687004, issued on Apr 8, 2010. Check the license (South Dakota CR000811, as entered in NPPES) with the South Dakota board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- J Thomas Larson
- Credential
- CRNA
- Primary taxonomy
- Certified Registered Nurse Anesthetist 367500000X
- License number
- CR000811 SD
Self-reported in NPPES; status is on the state search - Practice location
- 353 Fairmont Blvd, Rapid City, SD 57701
- Phone
- (605) 719-1000
- Enumerated
- Apr 8, 2010
- Record last updated
- Aug 27, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (605) 719-1405
- Medicare enrollment
- Enrolled (PECOS I20130523000654); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest certified registered nurse anesthetist records → All 533 in South Dakota → Look up another NPI →
Also registered at 353 Fairmont Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Riley AckermanPhysician Assistant1073241790
- Shakeel Ahmed, MDInternal Medicine Physician1356773113
- Osama Ahsan, DOHospitalist Physician1043903891
- Bayan Al Share, MDHematology & Oncology Physician1235582065
- Ghassan Al-Shbool, MDHematology & Oncology Physician1215450937
- Marc Aldrich, MDInternal Medicine Physician1932209442
Verify J Thomas Larson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich South Dakota board licenses this profession
Search for license CR000811Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The MIPS final score for 2023 (Medicare payment program): 97.6 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Monument Health Rapid City Hospital IncRapid City, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
J Thomas Larson among 533 certified registered nurse anesthetist records in South Dakota
J Thomas Larson, CRNA is one of 533 certified registered nurse anesthetist records with a practice address in South Dakota. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 50% of them.
- NPI issued2010 · 50% of these records are older, 47% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2010 · median 2013 among the 372 with a school on file
- Record last updated2013 · 67% 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 Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
101 certified registered nurse anesthetist records list a practice address in Rapid City
They are 101 of the 3,017 NPPES records with a practice address in Rapid City, and 533 certified registered nurse anesthetist records in South Dakota.
All 533 in South Dakota → Every provider in Rapid City → Certified Registered Nurse Anesthetist nationwide →
The 8 certified registered nurse anesthetist records with the nearest ZIP codes
- Gary Brewer, CRNARapid City, SD 577011427042944
- Dean Gibson, CRNARapid City, SD 577011801881289
- Barry Jones, CRNARapid City, SD 577011407836943
- Earl Kessel, CRNARapid City, SD 577011174563100
- Kara McMachen, CRNARapid City, SD 577011376523126
- Craig Nedved, CRNARapid City, SD 577011407841885
- Erin Retzer, CRNARapid City, SD 577011710971239
- Douglas Retzer, CRNARapid City, SD 577011376537803
Common questions
What is J Thomas Larson, CRNA's NPI number?
J Thomas Larson, CRNA's National Provider Identifier (NPI) is 1558687004, issued on Apr 8, 2010. An NPI identifies a provider in billing; it is not a license.
Where is J Thomas Larson, CRNA located?
The NPPES record lists a practice address at 353 Fairmont Blvd, Rapid City, SD, 57701. Phone: (605) 719-1000. Providers update this record themselves, so call before visiting.
How can I verify J Thomas Larson, CRNA's license?
NPPES lists South Dakota license number CR000811, as entered by the provider. Search the South Dakota board that licenses this profession; the NPPES record confirms identity only.
What is J Thomas Larson, CRNA's MIPS final score?
The 2023 MIPS final score is 97.6 of 100. 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.