Dr. Joseph Eldon Cox, MD
- Medicare services, 2024
- 16,808
- Medicare patients, 2024
- 3,636
- Part D claims, 2024
- 22
- MIPS score, 2024
- 100
- Hospital affiliations
- 6
- Practice address
- 2300 Opitz Boulevard, Woodbridge, VA 22191
- Practice phone
- Call (703) 523-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Cox's professional email, personal email and mobile number
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Dr. Joseph Eldon Cox is a diagnostic radiologist in Woodbridge, Virginia
Dr. Cox practices at Sentara Northern Virginia Medical Center in Woodbridge, Virginia, part of Sentara Health.
Dr. Cox's NPI, 1316981996, was assigned on June 15, 2006. Dr. Cox holds Florida license ME0080424.
- NPI
- 1316981996NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779564646
- NPI enumeration date
- June 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (703) 523-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joseph Eldon Cox practices at Sentara Northern Virginia Medical Center in Woodbridge, Virginia
Dr. Cox's primary practice is Sentara Northern Virginia Medical Center, at 2300 Opitz Boulevard, Woodbridge, VA 22191 in Prince William County. The practice phone is (703) 523-1000.
- Sentara Northern Virginia Medical Center2300 Opitz Boulevard, Woodbridge, VA 22191 · Prince William CountyPhone(703) 523-1000
Source: Dmand AI Affiliation Data
Dr. Joseph Eldon Cox is affiliated with 20 sites of care and 14 medical groups
Dr. Cox's primary practice is Sentara Northern Virginia Medical Center in Woodbridge, Virginia, part of Sentara Health. Dr. Cox is also affiliated with Northeast Georgia Medical Center Gainesville. The medical group on file is Sentara Medical Group. Dmand AI also links Dr. Cox to 4 more hospitals, 14 group practices and clinics and 13 medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joseph Eldon Cox's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cox practices, 20 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sentara Northern Virginia Medical Center | Available with a free account |
| +19 more sites and 13 medical groups | 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 Sentara Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Joseph Eldon Cox is one of 959 diagnostic radiologists in Virginia
Diagnostic radiology is Dr. Cox's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Cox is licensed in Florida.
Specialties and state licenses
- Diagnostic radiology, FloridaPrimary
Diagnostic radiologists near Dr. Cox
Counts of diagnostic radiologists 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. Joseph Eldon Cox billed Medicare for 16,808 services in 2024
CMS data shows 16,808 Medicare services from Dr. Cox across 56 procedure codes in 2024, for 3,636 Medicare patients. Medicare paid $247,291 for them.
Dr. Cox's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 7,2602024: 12,33670%
- Imaging
- 2023: 3,6652024: 4,40120%
- Tests and treatments
- 2023: 1042024: 7132%
Where Dr. Cox's Medicare services took place, 2024
- In an office14,15884%
- In a facility2,65016%
Dr. Cox compared with the Virginia median for diagnostic radiologists, 2024
- Dr. Cox
- Virginia median
- Medicare services
- 16,808vs 2,8645.9 times
- Medicare patients
- 3,636vs 2,06476% above
- Part D claims
- 20vs 1443% above
Medians across 976 diagnostic radiologists in Virginia with Dmand AI profiles that report each measure.
Dr. Cox's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joseph Eldon Cox treated 3,636 Medicare patients in 2024, average age 76
CMS counts 3,636 Medicare patients who saw Dr. Cox in 2024. The largest group is 75 to 84, with 1,365 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.85, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Cox's median patient age at 62, with 58% women.
Dr. Cox's Medicare patients by age, 2024
Dr. Cox's Medicare patients by sex, 2024
- Women2,09558%
- Men1,54142%
Chronic conditions among Dr. Cox's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis64%
- Ischemic heart disease46%
- Chronic kidney disease40%
- COPD39%
- Anxiety37%
- Diabetes36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cox's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women58%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joseph Eldon Cox wrote 22 Medicare Part D claims in 2024
In 2024, Dr. Cox wrote 22 Medicare Part D claims for 20 patients. 100% of them were for generic drugs. CMS names the drug for 20 of them, across 1 drug with 11 or more claims each, at $51 in total drug cost.
Dr. Cox's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Joseph Eldon Cox scored 100 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Cox for performance year 2024, reported as part of a group. Dr. Cox accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Cox's MIPS scores, performance year 2024
- 100of 100Final score
- 100of 100Quality
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Joseph Eldon Cox received $165,830 in industry payments from 2016 to 2025
CMS Open Payments shows 141 general payments to Dr. Cox from 14 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 89% of the total. Genentech, Inc. paid the most, $128,111.
General payments to Dr. Cox by program year, 2016 to 2025
General payments to Dr. Cox by kind, 2016 to 2025
- Speaker and faculty fees$146,78589%
- Travel and lodging$14,0428%
- Food and beverage$5,0033%
Companies that paid Dr. Cox the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Joseph Eldon Cox'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 services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - 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)Clinician Public Reporting: Overall MIPS Performance (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 Dr. Joseph Eldon Cox
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. Joseph Eldon Cox's NPI number?
Dr. Joseph Eldon Cox's NPI number is 1316981996. It was assigned on June 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Joseph Eldon Cox?
Dr. Joseph Eldon Cox is a diagnostic radiologist in Woodbridge, Virginia. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Joseph Eldon Cox practice?
Dr. Cox practices at 2300 Opitz Boulevard, Woodbridge, VA 22191. Dr. Cox's primary practice is Sentara Northern Virginia Medical Center in Woodbridge, Virginia, part of Sentara Health. Dmand AI also links Dr. Cox to 4 hospitals, 14 group practices and clinics and 13 medical groups.
What is Dr. Joseph Eldon Cox's office phone number?
The practice phone on file for Dr. Cox is (703) 523-1000.
What is Dr. Joseph Eldon Cox's medical license number?
Dr. Cox holds Florida license ME0080424.
Which hospitals is Dr. Joseph Eldon Cox affiliated with?
Dr. Cox practices at Sentara Northern Virginia Medical Center in Woodbridge, Virginia. Dr. Cox is also affiliated with Northeast Georgia Medical Center Gainesville. Dmand AI links Dr. Cox to 4 more hospitals.
What medical group is Dr. Joseph Eldon Cox part of?
Dr. Cox is linked to Sentara Medical Group. Dmand AI links Dr. Cox to 13 more medical groups.
Does Dr. Joseph Eldon Cox accept Medicare?
Yes. CMS data shows Dr. Cox billed Medicare for 16,808 services in 2024, and Dr. Cox accepts Medicare assignment.
What is Dr. Joseph Eldon Cox's MIPS score?
Dr. Cox's MIPS final score for performance year 2024 is 100 out of 100, reported as part of a group.
How many Medicare patients does Dr. Joseph Eldon Cox see?
CMS counts 3,636 Medicare patients who saw Dr. Cox in 2024, with an average age of 76.
Show 4 more questionsShow fewer questions
What services does Dr. Joseph Eldon Cox bill to Medicare?
In 2024, Dr. Cox's most billed Medicare services were medicare temporary code (Q9967), medical supplies or transport (A9575) and diagnostic imaging (71250).
What drugs does Dr. Joseph Eldon Cox prescribe most?
In 2024 Medicare Part D data, Dr. Cox's most prescribed drugs by claims were Prednisone.
Has Dr. Joseph Eldon Cox received payments from drug or device companies?
CMS Open Payments shows $165,830 in general payments to Dr. Cox from 14 companies from 2016 to 2025. The largest total came from Genentech, Inc.
How long has Dr. Joseph Eldon Cox been practicing?
Dr. Cox graduated from medical school in 1992, 34 years ago.
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