Dr. John Christopher Downs, MD
- Medicare services, 2024
- 229
- Medicare patients, 2024
- 171
- Part D claims, 2024
- 125
- Hospital affiliations
- 3
- Industry payments
- $2,692
- Practice address
- 2000 15th N St, Arlington, VA 22201
- Practice phone
- Call (443) 444-5606
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Medstar Medical Group II
Arlington, Virginia
Find Dr. Downs' 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. John Christopher Downs is a medical oncologist in Arlington, Virginia
Dr. Downs practices at Medstar Medical Group II in Arlington, Virginia.
Dr. Downs' NPI, 1093780496, was assigned on February 20, 2006. Dr. Downs graduated from State University of NY Upstate Medical University in 1981. Dr. Downs holds Maryland license D0033624.
- NPI
- 1093780496NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7810904182
- NPI enumeration date
- February 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (443) 444-5606
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Christopher Downs practices at Medstar Medical Group II in Arlington, Virginia
Dr. Downs' primary practice is Medstar Medical Group II, at 2000 15th N St, Arlington, VA 22201 in Arlington County. The practice phone is (443) 444-5606.
- Medstar Medical Group II2000 15th N St, Arlington, VA 22201 · Arlington CountyPhone(443) 444-5606
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Christopher Downs is affiliated with 7 sites of care and 4 medical groups
Dr. Downs' primary practice is Medstar Medical Group II in Arlington, Virginia. Dr. Downs is also affiliated with WellSpan York Hospital. The medical group on file is MedStar Medical Group. Dmand AI also links Dr. Downs to 2 more hospitals, 3 medical groups, 2 group practices and clinics and 1 physician office, 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. John Christopher Downs' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Downs practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Medstar Medical Group II | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Christopher Downs is one of 99 medical oncologists in Virginia
Medical oncology is Dr. Downs' primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Downs is licensed in Maryland.
Specialties and state licenses
- Medical oncology, MarylandPrimary
Medical oncologists near Dr. Downs
Counts of medical oncologists 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. John Christopher Downs billed Medicare for 229 services in 2024
CMS data shows 229 Medicare services from Dr. Downs across 5 procedure codes in 2024, all of them office visits, for 171 Medicare patients. Medicare paid $17,932 for them. Every service was in an office.
Dr. Downs' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4262024: 22946%
Dr. Downs compared with the Virginia median for medical oncologists, 2024
- Dr. Downs
- Virginia median
- Medicare services
- 229vs 56660% below
- Medicare patients
- 171vs 22223% below
- Part D claims
- 44vs 30385% below
Medians across 96 medical oncologists in Virginia with Dmand AI profiles that report each measure.
Dr. Downs' 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.
Need commercial claims for Dr. Downs?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Downs and other medical oncologists in Virginia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Christopher Downs treated 171 Medicare patients in 2024, average age 75
CMS counts 171 Medicare patients who saw Dr. Downs in 2024. The largest group is 75 to 84, with 72 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.88, 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. Downs' median patient age at 68, with 64% women.
Dr. Downs' Medicare patients by age, 2024
Dr. Downs' Medicare patients by sex, 2024
- Women9053%
- Men8147%
Chronic conditions among Dr. Downs' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Diabetes42%
- Chronic kidney disease40%
- Ischemic heart disease33%
- Cancer32%
- Anxiety24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Downs' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women64%
- Men35%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Christopher Downs wrote 125 Medicare Part D claims in 2024
In 2024, Dr. Downs wrote 125 Medicare Part D claims for 41 patients. 58% of them were for generic drugs. CMS names the drug for 44 of them, across 3 drugs with 11 or more claims each, at $165,120 in total drug cost. In 2023, CMS named 89 claims across 5 drugs.
Dr. Downs' Part D claims by kind of drug, 2024
- Generic73 claims58%
- Brand-name52 claims42%
Dr. Downs' 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 892024: 4451%
Drugs named by CMS: 3 in 2024, 5 in 2023.
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. John Christopher Downs offers telehealth to Medicare patients
Dr. Downs accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Downs as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. John Christopher Downs received $2,692 in industry payments from 2016 to 2025
CMS Open Payments shows 147 general payments to Dr. Downs from 38 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 94% of the total. Bristol-Myers Squibb Company paid the most, $358.
General payments to Dr. Downs by program year, 2016 to 2025
General payments to Dr. Downs by kind, 2016 to 2025
- Food and beverage$2,54094%
- Education$1526%
Companies that paid Dr. Downs the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Christopher Downs graduated from State University of NY Upstate Medical University
Dr. Downs graduated from State University of NY Upstate Medical University in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Christopher Downs'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 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) |
| 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. John Christopher Downs
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. John Christopher Downs' NPI number?
Dr. John Christopher Downs' NPI number is 1093780496. It was assigned on February 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Christopher Downs?
Dr. John Christopher Downs is a medical oncologist in Arlington, Virginia. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).
Where does Dr. John Christopher Downs practice?
Dr. Downs practices at 2000 15th N St, Arlington, VA 22201. Dr. Downs' primary practice is Medstar Medical Group II in Arlington, Virginia. Dmand AI also links Dr. Downs to 2 hospitals, 3 medical groups, 2 group practices and clinics and 1 physician office.
What is Dr. John Christopher Downs' office phone number?
The practice phone on file for Dr. Downs is (443) 444-5606.
What is Dr. John Christopher Downs' medical license number?
Dr. Downs holds Maryland license D0033624.
Which hospitals is Dr. John Christopher Downs affiliated with?
Dr. Downs is affiliated with WellSpan York Hospital. Dmand AI links Dr. Downs to 2 more hospitals.
What medical group is Dr. John Christopher Downs part of?
Dr. Downs is linked to MedStar Medical Group. Dmand AI links Dr. Downs to 3 more medical groups.
Does Dr. John Christopher Downs accept Medicare?
Yes. CMS data shows Dr. Downs billed Medicare for 229 services in 2024, and Dr. Downs accepts Medicare assignment.
Does Dr. John Christopher Downs offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Downs as offering telehealth services.
How many Medicare patients does Dr. John Christopher Downs see?
CMS counts 171 Medicare patients who saw Dr. Downs in 2024, with an average age of 75.
Show 5 more questionsShow fewer questions
What services does Dr. John Christopher Downs bill to Medicare?
In 2024, Dr. Downs' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).
Where did Dr. John Christopher Downs go to medical school?
Dr. Downs graduated from State University of NY Upstate Medical University in 1981.
What drugs does Dr. John Christopher Downs prescribe most?
In 2024 Medicare Part D data, Dr. Downs' most prescribed drugs by claims were Anastrozole, Hydroxyurea and Lenalidomide.
Has Dr. John Christopher Downs received payments from drug or device companies?
CMS Open Payments shows $2,692 in general payments to Dr. Downs from 38 companies from 2016 to 2025. The largest total came from Bristol-Myers Squibb Company.
How long has Dr. John Christopher Downs been practicing?
Dr. Downs graduated from medical school in 1981, 45 years ago.
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