J Thomas Larson, CRNA
- Medicare patients, 2024
- 20
- Hospital affiliations
- 1
- Industry payments
- $22
- Medical group
- 1
- State license
- 1
- Practice address
- 353 Fairmont Blvd, Rapid City, SD 57701
- Practice phone
- Call (605) 755-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find J Thomas Larson's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
J Thomas Larson is a nurse anesthetist in Rapid City, South Dakota
J Thomas Larson practices at Monument Health Rapid City Hospital in Rapid City, South Dakota, part of Monument Health.
J Thomas Larson's NPI, 1558687004, was assigned on April 8, 2010. J Thomas Larson holds South Dakota license CR000811.
- NPI
- 1558687004NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1355471426
- NPI enumeration date
- April 8, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (605) 755-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
J Thomas Larson practices at Monument Health Rapid City Hospital in Rapid City, South Dakota
J Thomas Larson's primary practice is Monument Health Rapid City Hospital, at 353 Fairmont Blvd, Rapid City, SD 57701 in Pennington County. The practice phone is (605) 755-1000.
- Monument Health Rapid City Hospital353 Fairmont Blvd, Rapid City, SD 57701 · Pennington CountyPhone(605) 755-1000
Source: Dmand AI Affiliation Data
J Thomas Larson is affiliated with 1 site of care and 1 medical group
J Thomas Larson's primary practice is Monument Health Rapid City Hospital in Rapid City, South Dakota, part of Monument Health. The medical group on file is Monument Health Rapid City Hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at J Thomas Larson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where J Thomas Larson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Monument Health Rapid City Hospital | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Monument Health and 6.2K+ hospitals, with verified contacts in the same login.
J Thomas Larson is one of 439 nurse anesthetists in South Dakota
Nurse anesthetist, certified registered is J Thomas Larson's primary specialty in the NPI Registry, under taxonomy code 367500000X. J Thomas Larson is licensed in South Dakota.
Specialties and state licenses
- Certified registered nurse anesthetist, South DakotaPrimary
Nurse anesthetists near J Thomas Larson
Counts of nurse anesthetists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
J Thomas Larson treated 20 Medicare patients in 2024, average age 73
CMS counts 20 Medicare patients who saw J Thomas Larson in 2024. 75% of them have high blood pressure, and 70% have high cholesterol. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts J Thomas Larson's median patient age at 69, with 47% women.
Chronic conditions among J Thomas Larson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol70%
Share of Medicare patients with each condition. A patient can have several.
J Thomas Larson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women47%
- Men53%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How J Thomas Larson takes part in Medicare
J Thomas Larson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
J Thomas Larson received $22 in industry payments in 2025
CMS Open Payments shows 1 general payment to J Thomas Larson from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Heron Therapeutics, Inc. paid the most, $22.
Companies that paid J Thomas Larson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for J Thomas Larson's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about J Thomas Larson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is J Thomas Larson's NPI number?
J Thomas Larson's NPI number is 1558687004. It was assigned on April 8, 2010, and it is active in the NPI Registry.
What does J Thomas Larson specialize in?
J Thomas Larson is a nurse anesthetist in Rapid City, South Dakota. The primary specialty in the NPI Registry is Certified Registered Nurse Anesthetist (taxonomy code 367500000X).
Where does J Thomas Larson practice?
J Thomas Larson practices at 353 Fairmont Blvd, Rapid City, SD 57701. J Thomas Larson's primary practice is Monument Health Rapid City Hospital in Rapid City, South Dakota, part of Monument Health.
What is J Thomas Larson's office phone number?
The practice phone on file for J Thomas Larson is (605) 755-1000.
What is J Thomas Larson's medical license number?
J Thomas Larson holds South Dakota license CR000811.
Which hospitals is J Thomas Larson affiliated with?
J Thomas Larson practices at Monument Health Rapid City Hospital in Rapid City, South Dakota.
What medical group is J Thomas Larson part of?
J Thomas Larson is linked to Monument Health Rapid City Hospital.
Does J Thomas Larson accept Medicare?
Yes. CMS lists J Thomas Larson as accepting Medicare assignment.
How many Medicare patients does J Thomas Larson see?
CMS counts 20 Medicare patients who saw J Thomas Larson in 2024, with an average age of 73.
Has J Thomas Larson received payments from drug or device companies?
CMS Open Payments shows $22 in general payments to J Thomas Larson from 1 company from 2025 to 2025. The largest total came from Heron Therapeutics, Inc.
How long has J Thomas Larson been practicing?
J Thomas Larson graduated from medical school in 2010, 16 years ago.
Selling to nurse anesthetist, certified registered practices?
See nurse anesthetists in South Dakota by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card