Arthritis Rheumatol
Biological TherapyBiosimilar PharmaceuticalsDrug Approval
Dr. Angus Brennan Worthing, MD
NPI1558534925PAC ID4981779980
- Medicare services, 2024
- 23,835
- Medicare patients, 2024
- 745
- Part D claims, 2024
- 1,811
- Publications
- 3
- MIPS score, 2024
- 86
- Practice address
- 2021 K Nw St, Washington, DC 20006
- Practice phone
- Call (202) 423-7825
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Capitol SC
Washington, District of Columbia
Find Dr. Worthing's professional email, personal email and mobile number
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Dr. Angus Brennan Worthing is a rheumatologist in Washington, District of Columbia
Dr. Worthing practices at Capitol SC in Washington, District of Columbia.
Dr. Worthing's NPI, 1558534925, was assigned on April 8, 2008. Dr. Worthing graduated from University of Minnesota Medical School in 2003. Dr. Worthing holds District of Columbia license MD035407.
NPI and contact details
- NPI
- 1558534925NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981779980
- NPI enumeration date
- April 8, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (202) 423-7825
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 49
- Medical school graduation
- 2003
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Angus Brennan Worthing practices at Capitol SC in Washington, District of Columbia
Dr. Worthing's primary practice is Capitol SC, at 2021 K Nw St, Washington, DC 20006 in District Of Columbia County. The practice phone is (202) 423-7825.
- Capitol SC2021 K Nw St, Washington, DC 20006 · District Of Columbia CountyPhone(202) 423-7825
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Angus Brennan Worthing is affiliated with 4 sites of care and 1 medical group
Dr. Worthing's primary practice is Capitol SC in Washington, District of Columbia. Dr. Worthing is also affiliated with Sibley Memorial Hospital. The medical group on file is Arthritis and Rheumatism Associates, P.C. Dmand AI also links Dr. Worthing to 1 more hospital and 1 group practice or clinic, each named with a free account.
Capitol SCPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Angus Brennan Worthing's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Worthing practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Capitol SC | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Angus Brennan Worthing is one of 45 rheumatologists in District of Columbia
Rheumatology is Dr. Worthing's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Worthing is licensed in District of Columbia.
Specialties and state licenses
- Rheumatology, District of ColumbiaPrimary
Rheumatologists near Dr. Worthing
Counts of rheumatologists 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. Angus Brennan Worthing billed Medicare for 23,835 services in 2024
CMS data shows 23,835 Medicare services from Dr. Worthing across 49 procedure codes in 2024, for 745 Medicare patients. Medicare paid $413,100 for them. Every service was in an office.
Medicare services, 202423,835
Medicare patients745
Paid by Medicare$413,100
Procedure codes49
Dr. Worthing's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 5,0212024: 17,823255%
- Lab and pathology
- 2023: 2,0182024: 2,1095%
- Office and hospital visits
- 2023: 1,0842024: 1,1738%
- Other services
- 2023: 312024: 1,0593316%
- Surgery
- 2023: 6922024: 6526%
- Tests and treatments
- 2023: 2832024: 600112%
- Imaging
- 2023: 4542024: 4198%
Dr. Worthing compared with the District of Columbia median for rheumatologists, 2024
- Dr. Worthing
- District of Columbia median
- Medicare services
- 23,835vs 44154.0 times
- Medicare patients
- 745vs 1724.3 times
- Part D claims
- 1,592vs 2795.7 times
Medians across 42 rheumatologists in District of Columbia with Dmand AI profiles that report each measure.
Dr. Worthing'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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Worthing and other rheumatologists in District of Columbia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Angus Brennan Worthing treated 745 Medicare patients in 2024, average age 77
CMS counts 745 Medicare patients who saw Dr. Worthing in 2024. The largest group is 75 to 84, with 342 patients. 73% of them have high cholesterol, and 72% have arthritis. Their average risk score is 1.03, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Worthing's median patient age at 67, with 71% women.
Medicare patients, 2024745
Average age77
Average risk score1.03
Dr. Worthing's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Worthing's Medicare patients by sex, 2024
- Women55675%
- Men18925%
Chronic conditions among Dr. Worthing's Medicare patients, 2024
- High cholesterol73%
- Arthritis72%
- High blood pressure59%
- Osteoporosis56%
- Ischemic heart disease22%
- Cancer18%
- Anxiety17%
- Diabetes16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Worthing's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 67
Patient panel by sex, all payers
- Women71%
- Men27%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Angus Brennan Worthing wrote 1,811 Medicare Part D claims in 2024
In 2024, Dr. Worthing wrote 1,811 Medicare Part D claims for 308 patients. 84% of them were for generic drugs. CMS names the drug for 1,592 of them, across 30 drugs with 11 or more claims each, at $1,465,560 in total drug cost. In 2023, CMS named 1,156 claims across 24 drugs.
Part D claims, 20241,811
Drugs named by CMS30
Total drug cost$1.5M
Part D patients308
Dr. Worthing's Part D claims by kind of drug, 2024
- Generic1,513 claims84%
- Brand-name and other298 claims16%
Dr. Worthing'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.
Drug classes CMS tracks in Dr. Worthing's Part D claims, 2024
- Opioids4%68 of 1,811 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,1562024: 1,59238%
Drugs named by CMS: 30 in 2024, 24 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. Angus Brennan Worthing scored 86 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 86 out of 100 for Dr. Worthing for performance year 2024, reported as part of a group. Dr. Worthing accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Worthing as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Worthing's MIPS scores, performance year 2024
- 86of 100Final score
- 93.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 59of 100Cost
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. Angus Brennan Worthing has 3 publications on record
Dmand AI links 3 papers to Dr. Worthing, published from 2015 to 2021. Dr. Worthing's most frequent co-authors are Byung Hoon Ban, DO, Stanley Bruce Cohen, MD and Sirisha Gokaraju, MD.
Papers3
Years published2015 to 2021
Dr. Worthing's papers by year, 2015 to 2021
Dr. Worthing's most frequent co-authors
- Byung Hoon Ban, DO1 shared paper
- Stanley Bruce Cohen, MD1 shared paper
- Sirisha Gokaraju, MD1 shared paper
Recent publications by Dr. Worthing
AnxietyChild AbuseCross-Cultural Comparison
See who Dr. Worthing researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Worthing works with, so you can find a warm path to the right rheumatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Angus Brennan Worthing received $16,775 in industry payments from 2016 to 2025
CMS Open Payments shows 318 general payments to Dr. Worthing from 38 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 53% of the total. Abbvie Inc. paid the most, $5,133.
General payments to Dr. Worthing by program year, 2016 to 2025
General payments to Dr. Worthing by kind, 2016 to 2025
$16.8Kin total
- Consulting fees$8,90853%
- Food and beverage$6,22637%
- Travel and lodging$1,1697%
- Honoraria$4343%
- Education$390%
Companies that paid Dr. Worthing 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. Angus Brennan Worthing graduated from University of Minnesota Medical School
Dr. Worthing graduated from University of Minnesota Medical School in 2003.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Angus Brennan Worthing'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)Clinician Public Reporting: Overall MIPS Performance (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. Angus Brennan Worthing
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. Angus Brennan Worthing's NPI number?
Dr. Angus Brennan Worthing's NPI number is 1558534925. It was assigned on April 8, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Angus Brennan Worthing?
Dr. Angus Brennan Worthing is a rheumatologist in Washington, District of Columbia. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).
Where does Dr. Angus Brennan Worthing practice?
Dr. Worthing practices at 2021 K Nw St, Washington, DC 20006. Dr. Worthing's primary practice is Capitol SC in Washington, District of Columbia. Dmand AI also links Dr. Worthing to 1 hospital and 1 group practice or clinic.
What is Dr. Angus Brennan Worthing's office phone number?
The practice phone on file for Dr. Worthing is (202) 423-7825.
What is Dr. Angus Brennan Worthing's medical license number?
Dr. Worthing holds District of Columbia license MD035407.
Which hospitals is Dr. Angus Brennan Worthing affiliated with?
Dr. Worthing is affiliated with Sibley Memorial Hospital. Dmand AI links Dr. Worthing to 1 more hospital.
What medical group is Dr. Angus Brennan Worthing part of?
Dr. Worthing is linked to Arthritis and Rheumatism Associates, P.C.
Does Dr. Angus Brennan Worthing accept Medicare?
Yes. CMS data shows Dr. Worthing billed Medicare for 23,835 services in 2024, and Dr. Worthing accepts Medicare assignment.
Does Dr. Angus Brennan Worthing offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Worthing as offering telehealth services.
What is Dr. Angus Brennan Worthing's MIPS score?
Dr. Worthing's MIPS final score for performance year 2024 is 86 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Angus Brennan Worthing see?
CMS counts 745 Medicare patients who saw Dr. Worthing in 2024, with an average age of 77.
What services does Dr. Angus Brennan Worthing bill to Medicare?
In 2024, Dr. Worthing's most billed Medicare services were injected or infused drug (J0897), injected or infused drug (J1602) and injected or infused drug (J3111).
Where did Dr. Angus Brennan Worthing go to medical school?
Dr. Worthing graduated from University of Minnesota Medical School in 2003.
What drugs does Dr. Angus Brennan Worthing prescribe most?
In 2024 Medicare Part D data, Dr. Worthing's most prescribed drugs by claims were Methotrexate, Hydroxychloroquine Sulfate and Alendronate Sodium.
Has Dr. Angus Brennan Worthing received payments from drug or device companies?
CMS Open Payments shows $16,775 in general payments to Dr. Worthing from 38 companies from 2016 to 2025. The largest total came from Abbvie Inc.
How long has Dr. Angus Brennan Worthing been practicing?
Dr. Worthing graduated from medical school in 2003, 23 years ago.
Does Dr. Angus Brennan Worthing do research?
Dmand AI links 3 publications to Dr. Worthing, published from 2015 to 2021.
Who does Dr. Angus Brennan Worthing publish with?
Dr. Worthing's most frequent co-authors are Byung Hoon Ban, DO (1 shared paper), Stanley Bruce Cohen, MD (1 shared paper) and Sirisha Gokaraju, MD (1 shared paper).
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