Angus Brennan Worthing, MD
Rheumatology Physician · Washington, DC
Angus Brennan Worthing, MD is a rheumatology physician with a practice address in Washington, District of Columbia, and NPI 1558534925, issued on Apr 8, 2008. Check the license (District of Columbia MD035407, as entered in NPPES) on the District of Columbia Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Angus Brennan Worthing
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- MD035407 DC
D0067477 MD
Self-reported in NPPES; status is on the state search - Practice location
- 2021 K St NW Ste 300, Washington, DC 20006
- Phone
- (301) 942-7600
- Enumerated
- Apr 8, 2008
- Record last updated
- Feb 17, 2026
- Fax
- (202) 419-0418
- Medicare enrollment
- Enrolled (PECOS I20080826000074); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 57 in District of Columbia → Look up another NPI →
Also registered at 2021 K St NW Ste 300
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adey Berhanu, M.D.Rheumatology Physician1417246091
- Shari Diamond, M.D.Rheumatology Physician1326165697
- Kiley Golden, PA-CPhysician Assistant1568298222
- Marc Phillpotts, M.D.Rheumatology Physician1518300151
- Lauren TidwellPhysical Therapist1114517257
Verify Angus Brennan Worthing in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersDistrict of Columbia Board of Medicine
Search for license MD035407Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% fewer Medicare Part D claims than the average rheumatology physician in 2024
1,811 Medicare Part D claims for 308 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. 68 claims were for opioids.
Most prescribed
- Methotrexate224 claims
- Hydroxychloroquine Sulfate185 claims
- Alendronate Sodium161 claims
- Prednisone147 claims
- Allopurinol117 claims
- Leflunomide73 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $4,504.47
8 payments; by number, the most common kind was food and beverage; the largest payer was Ucb, Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Arthritis And Rheumatism Associates PCChevy Chase, MD
- Suburban/nrh Medical Rehabilitation IncBethesda, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Angus Brennan Worthing among 57 rheumatology physician records in District of Columbia
Angus Brennan Worthing, MD is one of 57 rheumatology physician records with a practice address in District of Columbia. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 54% of them.
- NPI issued2008 · 54% of these records are older, 37% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 51% of these records are
- Graduated2003 · median 2006 among the 29 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a District of Columbia practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in District of Columbia
There are 57 rheumatology physician records in District of Columbia.
All 57 in District of Columbia → Every provider in Washington → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Werner Barth, M.D.Washington, DC 200061659370948
- Adey Berhanu, M.D.Washington, DC 200061417246091
- David Borenstein, MDWashington, DC 200061366441727
- Shari Diamond, M.D.Washington, DC 200061326165697
- Justin Peng, MDWashington, DC 200061538328141
- Marc Phillpotts, M.D.Washington, DC 200061518300151
- Carol Deane Benedict, MDWashington, DC 200071356575864
- Thomas CuppsWashington, DC 200071336147206
Common questions
What is Angus Brennan Worthing, MD's NPI number?
Angus Brennan Worthing, MD's National Provider Identifier (NPI) is 1558534925, issued on Apr 8, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Angus Brennan Worthing, MD located?
The NPPES record lists a practice address at 2021 K St NW Ste 300, Washington, DC, 20006. Phone: (301) 942-7600. Providers update this record themselves, so call before visiting.
How can I verify Angus Brennan Worthing, MD's license?
NPPES lists District of Columbia license number MD035407, as entered by the provider. Search the District of Columbia Board of Medicine at https://dchealth.dc.gov/bomed. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Angus Brennan Worthing, MD prescribe under Medicare Part D?
In 2024, Angus Brennan Worthing, MD had 1,811 Medicare Part D claims for 308 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Angus Brennan Worthing, MD's MIPS final score?
The 2023 MIPS final score is 77.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.