Richard Sigurd Larson III, DNP
- Industry payments
- $107
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- 4975 Lacross Rd, Charleston, SC 29406
- Practice phone
- Call (843) 573-2535
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Coastal Pediatric Associates, P.A.
Charleston, South Carolina
Find Richard 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.
Richard Sigurd Larson III is a pediatric nurse practitioner in Charleston, South Carolina
Richard Larson practices at Coastal Pediatric Associates, P.A. in Charleston, South Carolina.
Richard Larson's NPI, 1265074660, was assigned on October 17, 2019. Richard Larson holds South Carolina license 23287.
- NPI
- 1265074660NPI Registry (opens in a new tab)
- NPI enumeration date
- October 17, 2019
- NPI status
- Active
- Practice phone
- (843) 573-2535
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Richard Sigurd Larson III practices at Coastal Pediatric Associates, P.A. in Charleston, South Carolina
Richard Larson's primary practice is Coastal Pediatric Associates, P.A., at 4975 Lacross Rd, Charleston, SC 29406 in Charleston County. The practice phone is (843) 573-2535.
- Coastal Pediatric Associates, P.A.4975 Lacross Rd, Charleston, SC 29406 · Charleston CountyPhone(843) 573-2535
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Richard Sigurd Larson III is affiliated with 2 sites of care and 1 medical group
Richard Larson's primary practice is Coastal Pediatric Associates, P.A. in Charleston, South Carolina. The medical group on file is MUSC Health Primary Care (Citadel Mall). Dmand AI also links Richard Larson to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Richard Sigurd Larson III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Richard Larson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Coastal Pediatric Associates, P.A. | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Richard Sigurd Larson III is one of 206 pediatric nurse practitioners in South Carolina
Nurse practitioner is Richard Larson's primary specialty in the NPI Registry, under taxonomy code 363LP0200X. The record also lists pediatrics. Richard Larson is licensed in South Carolina.
Specialties and state licenses
- Pediatric nurse practitioner, South CarolinaPrimary
Pediatric nurse practitioners near Richard Larson
Counts of pediatric nurse practitioners 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
Richard Sigurd Larson III's patients have a median age of 6
Across all payers, Dmand AI patient panel data puts Richard Larson's median patient age at 6, with 42% women.
Richard 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 6
Patient panel by sex, all payers
- Women42%
- Men58%
Source: Dmand AI Patient Panel Data
Richard Sigurd Larson III received $107 in industry payments in 2025
CMS Open Payments shows 5 general payments to Richard Larson from 3 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $56.
Companies that paid Richard 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 Richard Sigurd Larson III'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 Richard Sigurd Larson III
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Richard Sigurd Larson III's NPI number?
Richard Sigurd Larson III's NPI number is 1265074660. It was assigned on October 17, 2019, and it is active in the NPI Registry.
What does Richard Sigurd Larson III specialize in?
Richard Sigurd Larson III is a pediatric nurse practitioner in Charleston, South Carolina. The primary specialty in the NPI Registry is Pediatric Nurse Practitioner (taxonomy code 363LP0200X).
Where does Richard Sigurd Larson III practice?
Richard Larson practices at 4975 Lacross Rd, Charleston, SC 29406. Richard Larson's primary practice is Coastal Pediatric Associates, P.A. in Charleston, South Carolina. Dmand AI also links Richard Larson to 1 group practice or clinic.
What is Richard Sigurd Larson III's office phone number?
The practice phone on file for Richard Larson is (843) 573-2535.
What is Richard Sigurd Larson III's medical license number?
Richard Larson holds South Carolina license 23287.
What medical group is Richard Sigurd Larson III part of?
Richard Larson is linked to MUSC Health Primary Care (Citadel Mall).
Has Richard Sigurd Larson III received payments from drug or device companies?
CMS Open Payments shows $107 in general payments to Richard Larson from 3 companies from 2025 to 2025. The largest total came from Sanofi and Genzyme US Companies.
How long has Richard Sigurd Larson III been practicing?
Richard Larson graduated from medical school in 2019, 7 years ago.
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