Dr. Guy- Ronald Joseph, MD
- Industry payments
- $139
- Affiliated sites
- 1
- Medical group
- 1
- State licenses
- 2
- Year NPI issued
- 2008
- Practice address
- 13135 State Rte 50, Fairfax, VA 22033
- Practice phone
- Call (703) 391-0900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Trusted Doctors
Fairfax, Virginia
Find Dr. Joseph'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. Guy- Ronald Joseph is a pediatrician in Fairfax, Virginia
Dr. Joseph practices at Trusted Doctors in Fairfax, Virginia.
Dr. Joseph's NPI, 1730336991, was assigned on August 19, 2008. Dr. Joseph holds Maryland license D77152.
- NPI
- 1730336991NPI Registry (opens in a new tab)
- NPI enumeration date
- August 19, 2008
- NPI status
- Active
- Practice phone
- (703) 391-0900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Guy- Ronald Joseph practices at Trusted Doctors in Fairfax, Virginia
Dr. Joseph's primary practice is Trusted Doctors, at 13135 State Rte 50, Fairfax, VA 22033 in Fairfax County. The practice phone is (703) 391-0900.
- Trusted Doctors13135 State Rte 50, Fairfax, VA 22033 · Fairfax CountyPhone(703) 391-0900
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Guy- Ronald Joseph is affiliated with 2 sites of care and 1 medical group
Dr. Joseph's primary practice is Trusted Doctors in Fairfax, Virginia. Dmand AI also links Dr. Joseph to 1 group practice or clinic and 1 medical group, each 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 Dr. Guy- Ronald Joseph's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Joseph practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Trusted Doctors | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Guy- Ronald Joseph is one of 1,669 pediatricians in Virginia
Pediatrics is Dr. Joseph's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dmand AI has Dr. Joseph's licenses on file in 2 states: Maryland and New York.
Specialties and state licenses
- Pediatrics, MarylandPrimary
- New York license
Pediatricians near Dr. Joseph
Counts of pediatricians 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. Guy- Ronald Joseph's patients have a median age of 11
Across all payers, Dmand AI patient panel data puts Dr. Joseph's median patient age at 11, with 33% women.
Dr. Joseph's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 11
Patient panel by sex, all payers
- Women33%
- Men66%
Source: Dmand AI Patient Panel Data
Dr. Guy- Ronald Joseph received $139 in industry payments from 2016 to 2017
CMS Open Payments shows 8 general payments to Dr. Joseph from 1 drug or device company from 2016 to 2017. Food and beverage make up the largest share, 100% of the total. GlaxoSmithKline, LLC. paid the most, $139.
General payments to Dr. Joseph by program year, 2016 to 2017
Companies that paid Dr. Joseph the most, 2016 to 2017
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Guy- Ronald Joseph'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 Dr. Guy- Ronald Joseph
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. Guy- Ronald Joseph's NPI number?
Dr. Guy- Ronald Joseph's NPI number is 1730336991. It was assigned on August 19, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Guy- Ronald Joseph?
Dr. Guy- Ronald Joseph is a pediatrician in Fairfax, Virginia. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Guy- Ronald Joseph practice?
Dr. Joseph practices at 13135 State Rte 50, Fairfax, VA 22033. Dr. Joseph's primary practice is Trusted Doctors in Fairfax, Virginia. Dmand AI also links Dr. Joseph to 1 group practice or clinic and 1 medical group.
What is Dr. Guy- Ronald Joseph's office phone number?
The practice phone on file for Dr. Joseph is (703) 391-0900.
What is Dr. Guy- Ronald Joseph's medical license number?
Dr. Joseph holds Maryland license D77152, one of the licenses on file in 2 states.
Which states has Dr. Guy- Ronald Joseph been licensed in?
Dmand AI has state licenses on file for Dr. Joseph in Maryland and New York.
Has Dr. Guy- Ronald Joseph received payments from drug or device companies?
CMS Open Payments shows $139 in general payments to Dr. Joseph from 1 company from 2016 to 2017. The largest total came from GlaxoSmithKline, LLC.
How long has Dr. Guy- Ronald Joseph been practicing?
Dr. Joseph's NPI was assigned in 2008.
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