Joshua Bilsborrow, M.D., M.H.S.
Rheumatology Physician · Hamden, CT
Joshua Bilsborrow, M.D., M.H.S. is a rheumatology physician with a practice address in Hamden, Connecticut, and NPI 1942645403, issued on May 9, 2013. Check the license (Connecticut 66453, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Joshua Bilsborrow
- Credential
- M.D., M.H.S.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 66453 CT
Self-reported in NPPES; status is on the state search - Practice location
- 3018 Dixwell Ave, Hamden, CT 06518
- Phone
- (203) 281-5910
- Enumerated
- May 9, 2013
- Record last updated
- Jul 23, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (203) 281-3403
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 145 in Connecticut → Look up another NPI →
Also registered at 3018 Dixwell Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cornelia Ciubotaru, M.D.Specialist1730290487
- Anita Deangelo, A.P.R.N., M.S.N.Family Nurse Practitioner1710089073
- Deborah Desir, M.D.Rheumatology Physician1831209865
- Roberta Geisser, OTR/LOccupational Therapist1639261928
- Sonia Gordon-Dole, M.D.Rheumatology Physician1003927047
- Blerta Green, M.D.Rheumatology Physician1578942215
Verify Joshua Bilsborrow in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 66453Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average rheumatology physician in 2024
167 Medicare Part D claims for 71 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Hydroxychloroquine Sulfate23 claims
- Methotrexate23 claims
- Prednisone23 claims
- Folic Acid12 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): 73.6 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).
Joshua Bilsborrow among 145 rheumatology physician records in Connecticut
Joshua Bilsborrow, M.D., M.H.S. is one of 145 rheumatology physician records with a practice address in Connecticut. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 76% of them.
- NPI issued2013 · 76% of these records are older, 22% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 65% of these records are
- Record last updated2020 · 65% 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 Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Connecticut
There are 145 rheumatology physician records in Connecticut.
All 145 in Connecticut → Every provider in Hamden → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Adriana Blanco, M.D.Hamden, CT 065181558363390
- Deborah Desir, M.D.Hamden, CT 065181831209865
- Sonia Gordon-Dole, M.D.Hamden, CT 065181003927047
- Blerta Green, M.D.Hamden, CT 065181578942215
- Mukta Sharma, M.D.Hamden, CT 065181770711202
- Linda Bockenstedt, MDNew Haven, CT 065191124001359
- Richard Bucala, MDNew Haven, CT 065191649307208
- Lenore Buckley, M.D.New Haven, CT 065191932298098
Common questions
What is Joshua Bilsborrow, M.D., M.H.S.'s NPI number?
Joshua Bilsborrow, M.D., M.H.S.'s National Provider Identifier (NPI) is 1942645403, issued on May 9, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Joshua Bilsborrow, M.D., M.H.S. located?
The NPPES record lists a practice address at 3018 Dixwell Ave, Hamden, CT, 06518. Phone: (203) 281-5910. Providers update this record themselves, so call before visiting.
How can I verify Joshua Bilsborrow, M.D., M.H.S.'s license?
NPPES lists Connecticut license number 66453, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Joshua Bilsborrow, M.D., M.H.S. prescribe under Medicare Part D?
In 2024, Joshua Bilsborrow, M.D., M.H.S. had 167 Medicare Part D claims for 71 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Joshua Bilsborrow, M.D., M.H.S.'s MIPS final score?
The 2023 MIPS final score is 73.6 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.