Dr. James F. Loomis Jr., MD
- Medicare services, 2024
- 323
- Medicare patients, 2024
- 133
- Part D claims, 2024
- 509
- Publications
- 3
- Industry payments
- $14
- Practice address
- 5100 Wisconsin Ave Nw Suite 401 Suite 401, Washington, DC 20016-4131
- Practice phone
- Call (202) 527-7500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Barnard Medical Center
Primary care practice · Washington, District of Columbia
Find Dr. Loomis' 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. James F. Loomis Jr. is an internist in Washington, District of Columbia
Dr. Loomis practices at Barnard Medical Center in Washington, District of Columbia.
Dr. Loomis' NPI, 1528153160, was assigned on October 3, 2006. Dr. Loomis graduated from University of Arkansas College of Medicine in 1985. Dr. Loomis holds District of Columbia license MD043764.
- NPI
- 1528153160NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7618036039
- NPI enumeration date
- October 3, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (202) 527-7500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. James F. Loomis Jr. practices at Barnard Medical Center in Washington, District of Columbia
Dr. Loomis' primary practice is Barnard Medical Center, at 5100 Wisconsin Ave Nw Suite 401 Suite 401, Washington, DC 20016-4131. The practice phone is (202) 527-7500.
- Barnard Medical Center5100 Wisconsin Ave Nw Suite 401 Suite 401, Washington, DC 20016-4131Phone(202) 527-7500
Source: Dmand AI Affiliation Data
Dr. James F. Loomis Jr. is affiliated with 1 site of care and 1 medical group
Dr. Loomis' primary practice is Barnard Medical Center in Washington, District of Columbia. The medical group on file is Barnard Medical Center.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. James F. Loomis Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Loomis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Barnard Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James F. Loomis Jr. is one of 660 internists in District of Columbia
Internal medicine is Dr. Loomis' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Loomis' licenses on file in 2 states: District of Columbia and Missouri.
Specialties and state licenses
- Internal medicine, District of ColumbiaPrimary
- Missouri license
Internists near Dr. Loomis
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. James F. Loomis Jr. billed Medicare for 323 services in 2024
CMS data shows 323 Medicare services from Dr. Loomis across 6 procedure codes in 2024, for 133 Medicare patients. Medicare paid $23,239 for them. Every service was in an office.
Dr. Loomis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 1922024: 17310%
- Office and hospital visits
- 2023: 1572024: 1504%
Dr. Loomis compared with the District of Columbia median for internists, 2024
- Dr. Loomis
- District of Columbia median
- Medicare services
- 323vs 3549% below
- Medicare patients
- 133vs 15313% below
- Part D claims
- 322vs 1102.9 times
Medians across 591 internists in District of Columbia with Dmand AI profiles that report each measure.
Dr. Loomis' 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. Loomis?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Loomis and other internists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James F. Loomis Jr. treated 133 Medicare patients in 2024, average age 72
CMS counts 133 Medicare patients who saw Dr. Loomis in 2024. The largest group is 65 to 74, with 90 patients. 75% of them have high cholesterol, and 58% have high blood pressure. 10% are also on Medicaid. Their average risk score is 0.67, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Loomis' median patient age at 61, with 39% women.
Dr. Loomis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Loomis' Medicare patients by sex, 2024
- Women6347%
- Men7053%
Chronic conditions among Dr. Loomis' Medicare patients, 2024
- High cholesterol75%
- High blood pressure58%
- Arthritis30%
- Ischemic heart disease26%
- Diabetes21%
- Osteoporosis16%
- Anxiety11%
- Atrial fibrillation10%
Share of Medicare patients with each condition. A patient can have several.
Dr. Loomis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 61
Patient panel by sex, all payers
- Women39%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. James F. Loomis Jr. wrote 509 Medicare Part D claims in 2024
In 2024, Dr. Loomis wrote 509 Medicare Part D claims for 122 patients. 81% of them were for generic drugs. CMS names the drug for 322 of them, across 11 drugs with 11 or more claims each, at $15,864 in total drug cost. In 2023, CMS named 320 claims across 10 drugs.
Dr. Loomis' Part D claims by kind of drug, 2024
- Generic411 claims81%
- Brand-name and other98 claims19%
Dr. Loomis' 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: 3202024: 3221%
Drugs named by CMS: 11 in 2024, 10 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. James F. Loomis Jr. offers telehealth to Medicare patients
Dr. Loomis accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Loomis as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. James F. Loomis Jr. has 3 publications on record
Dmand AI links 3 papers to Dr. Loomis, published from 2019 to 2025. Dr. Loomis' most frequent co-authors are Neal Barnard, MD, Travis Carlos Batts, MD and Joel H. Fuhrman, MD.
Dr. Loomis' papers by year, 2019 to 2025
Dr. Loomis' most frequent co-authors
- Neal Barnard, MD2 shared papers
- Travis Carlos Batts, MD1 shared paper
- Joel H. Fuhrman, MD1 shared paper
Recent publications by Dr. Loomis
Plant-Based Diets for Cardiovascular Safety and Performance in Endurance Sports (opens in a new tab)
Nutrients
See who Dr. Loomis researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Loomis works with, so you can find a warm path to the right internists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. James F. Loomis Jr. received $14 in industry payments in 2018
CMS Open Payments shows 1 general payment to Dr. Loomis from 1 drug or device company in 2018. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $14.
Companies that paid Dr. Loomis the most, 2018 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James F. Loomis Jr. graduated from University of Arkansas College of Medicine
Dr. Loomis graduated from University of Arkansas College of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. James F. Loomis Jr.'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. James F. Loomis Jr.
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. James F. Loomis Jr.'s NPI number?
Dr. James F. Loomis Jr.'s NPI number is 1528153160. It was assigned on October 3, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James F. Loomis Jr.?
Dr. James F. Loomis Jr. is an internist in Washington, District of Columbia. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. James F. Loomis Jr. practice?
Dr. Loomis practices at 5100 Wisconsin Ave Nw Suite 401 Suite 401, Washington, DC 20016-4131. Dr. Loomis' primary practice is Barnard Medical Center in Washington, District of Columbia.
What is Dr. James F. Loomis Jr.'s office phone number?
The practice phone on file for Dr. Loomis is (202) 527-7500.
What is Dr. James F. Loomis Jr.'s medical license number?
Dr. Loomis holds District of Columbia license MD043764, one of the licenses on file in 2 states.
Which states has Dr. James F. Loomis Jr. been licensed in?
Dmand AI has state licenses on file for Dr. Loomis in District of Columbia and Missouri.
What medical group is Dr. James F. Loomis Jr. part of?
Dr. Loomis is linked to Barnard Medical Center.
Does Dr. James F. Loomis Jr. accept Medicare?
Yes. CMS data shows Dr. Loomis billed Medicare for 323 services in 2024, and Dr. Loomis accepts Medicare assignment.
Does Dr. James F. Loomis Jr. offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Loomis as offering telehealth services.
How many Medicare patients does Dr. James F. Loomis Jr. see?
CMS counts 133 Medicare patients who saw Dr. Loomis in 2024, with an average age of 72.
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What services does Dr. James F. Loomis Jr. bill to Medicare?
In 2024, Dr. Loomis' most billed Medicare services were office visit, established patient (99213), medicare service (G0439) and medicare service (G0444).
Where did Dr. James F. Loomis Jr. go to medical school?
Dr. Loomis graduated from University of Arkansas College of Medicine in 1985.
What drugs does Dr. James F. Loomis Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Loomis' most prescribed drugs by claims were Losartan Potassium, Amlodipine Besylate and Atorvastatin Calcium.
Has Dr. James F. Loomis Jr. received payments from drug or device companies?
CMS Open Payments shows $14 in general payments to Dr. Loomis from 1 company from 2018 to 2018. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. James F. Loomis Jr. been practicing?
Dr. Loomis graduated from medical school in 1985, 41 years ago.
Does Dr. James F. Loomis Jr. do research?
Dmand AI links 3 publications to Dr. Loomis, published from 2019 to 2025.
Who does Dr. James F. Loomis Jr. publish with?
Dr. Loomis' most frequent co-authors are Neal Barnard, MD (2 shared papers), Travis Carlos Batts, MD (1 shared paper) and Joel H. Fuhrman, MD (1 shared paper).
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