Dr. Stephen Girard Sinclair III, DO
- Hospital affiliations
- 1
- Industry payments
- $1,719
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 9260 W Sunset Rd Suite 306 Suite 306, Las Vegas, NV 89148-4903
- Practice phone
- Call (702) 483-4483
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kim Chen - Primary Care - Las Vegas (9260 W Sunset Rd)
Multi-specialty group site · Las Vegas, Nevada
Find Dr. Sinclair'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.
Dr. Stephen Girard Sinclair III is an internist in Grove City, Ohio
Dr. Sinclair practices at Kim Chen - Primary Care - Las Vegas (9260 W Sunset Rd) in Las Vegas, Nevada.
Dr. Sinclair's NPI, 1558980730, was assigned on April 8, 2020. Dr. Sinclair graduated from West Virginia School of Osteopathic Medicine in 2020. Dr. Sinclair holds Nevada license DO3617.
- NPI
- 1558980730NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9830514611
- NPI enumeration date
- April 8, 2020
- NPI status
- Active
- Practice phone
- (702) 483-4483
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen Girard Sinclair III practices in Las Vegas and Grove City
Dr. Sinclair's primary practice is Kim Chen - Primary Care - Las Vegas (9260 W Sunset Rd), at 9260 W Sunset Rd Suite 306 Suite 306, Las Vegas, NV 89148-4903. The practice phone is (702) 483-4483. The NPI Registry lists Dr. Sinclair's practice address as 5300 N Meadows Dr, Grove City, OH 43123.
- Kim Chen - Primary Care - Las Vegas (9260 W Sunset Rd)Primary9260 W Sunset Rd Suite 306 Suite 306, Las Vegas, NV 89148-4903Phone(702) 483-4483
- NPI Registry address5300 N Meadows Dr, Grove City, OH 43123 · Franklin CountyPhone(702) 483-4483
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Stephen Girard Sinclair III is affiliated with 2 sites of care and 1 medical group
Dr. Sinclair's primary practice is Kim Chen - Primary Care - Las Vegas (9260 W Sunset Rd) in Las Vegas, Nevada. Dr. Sinclair is also affiliated with Southern Hills Hospital and Medical Center. The medical group on file is Comprehensive Digestive Institute of Nevada.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Stephen Girard Sinclair III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sinclair practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kim Chen - Primary Care - Las Vegas (9260 W Sunset Rd) | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen Girard Sinclair III is one of 4,708 internists in Ohio
Internal medicine is Dr. Sinclair's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Sinclair is licensed in Nevada.
Specialties and state licenses
- Internal medicine, NevadaPrimary
Internists near Dr. Sinclair
Counts of internists 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
Dr. Stephen Girard Sinclair III's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Sinclair's median patient age at 66, with 60% women.
Dr. Sinclair's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women60%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. Stephen Girard Sinclair III received $1,719 in industry payments from 2024 to 2025
CMS Open Payments shows 19 general payments to Dr. Sinclair from 11 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $309.
General payments to Dr. Sinclair by program year, 2024 to 2025
Companies that paid Dr. Sinclair the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stephen Girard Sinclair III graduated from West Virginia School of Osteopathic Medicine
Dr. Sinclair graduated from West Virginia School of Osteopathic Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen Girard Sinclair 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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Dr. Stephen Girard Sinclair 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 Dr. Stephen Girard Sinclair III's NPI number?
Dr. Stephen Girard Sinclair III's NPI number is 1558980730. It was assigned on April 8, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen Girard Sinclair III?
Dr. Stephen Girard Sinclair III is an internist in Grove City, Ohio. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Stephen Girard Sinclair III practice?
Dr. Sinclair practices at 9260 W Sunset Rd Suite 306 Suite 306, Las Vegas, NV 89148-4903. Dr. Sinclair also practices at 5300 N Meadows Dr, Grove City, OH 43123. Dr. Sinclair's primary practice is Kim Chen - Primary Care - Las Vegas (9260 W Sunset Rd) in Las Vegas, Nevada.
What is Dr. Stephen Girard Sinclair III's office phone number?
The practice phone on file for Dr. Sinclair is (702) 483-4483.
What is Dr. Stephen Girard Sinclair III's medical license number?
Dr. Sinclair holds Nevada license DO3617.
Which hospitals is Dr. Stephen Girard Sinclair III affiliated with?
Dr. Sinclair is affiliated with Southern Hills Hospital and Medical Center.
What medical group is Dr. Stephen Girard Sinclair III part of?
Dr. Sinclair is linked to Comprehensive Digestive Institute of Nevada.
Where did Dr. Stephen Girard Sinclair III go to medical school?
Dr. Sinclair graduated from West Virginia School of Osteopathic Medicine in 2020.
Has Dr. Stephen Girard Sinclair III received payments from drug or device companies?
CMS Open Payments shows $1,719 in general payments to Dr. Sinclair from 11 companies from 2024 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Stephen Girard Sinclair III been practicing?
Dr. Sinclair graduated from medical school in 2020, 6 years ago.
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