Katherine Arlene Arner Clark, M.D., M.B.A.
Advanced Heart Failure and Transplant Cardiology Physician · New Haven, CT
Katherine Arlene Arner Clark, M.D., M.B.A. is an advanced heart failure and transplant cardiology physician with a practice address in New Haven, Connecticut, and NPI 1417343906, issued on Apr 10, 2015. Check the license (Connecticut 71692, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Katherine Arlene Arner Clark
- Credential
- M.D., M.B.A.
- Primary taxonomy
- Advanced Heart Failure and Transplant Cardiology Physician 207RA0001X
- License number
- 71692 CT
Self-reported in NPPES; status is on the state search - Practice location
- 20 York St, New Haven, CT 06510
- Phone
- (203) 688-4242
- Enumerated
- Apr 10, 2015
- Record last updated
- Dec 12, 2022
- Medicare enrollment
- Enrolled (PECOS I20220725002700); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest advanced heart failure and transplant cardiology physician records → All 15 in Connecticut → Look up another NPI →
Also registered at 20 York St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
- Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
- Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
- Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
- Sarah AbdallahPsychiatry Physician1740800952
- Usama Abdelghany, PHARM DOncology Pharmacist1548827843
Verify Katherine Arlene Arner Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 71692Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average advanced heart failure and transplant cardiology physician in 2024
203 Medicare Part D claims for 54 beneficiaries, against an average of 1,965 among the 1,124 providers of this specialty who prescribed in Part D.
Most prescribed
- Farxiga21 claims
- Metoprolol Succinate19 claims
- Spironolactone18 claims
- Furosemide12 claims
- Jardiance12 claims
- Rosuvastatin Calcium12 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).
Industry payments in 2024: $20.91
1 payment: food and beverage; the largest payer was Atricure, Inc. The 1,027 providers of this specialty with any payment received $10,265.85 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 one group practice
- Yale UniversityGuilford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Arlene Arner Clark among 15 advanced heart failure and transplant cardiology physician records in Connecticut
Katherine Arlene Arner Clark, M.D., M.B.A. is one of 15 advanced heart failure and transplant cardiology physician records with a practice address in Connecticut. 100% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 73% of them.
- NPI issued2015 · 73% of these records are older, 13% newer
- In a Medicare fileYes · 100% of these records are
- In the CMS Doctors and Clinicians fileYes · 100% of these records are
- Graduated2015 · median 2013 among the 15 with a school on file
- Record last updated2022 · 7% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RA0001X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Advanced Heart Failure and Transplant Cardiology Physician providers in Connecticut
There are 15 advanced heart failure and transplant cardiology physician records in Connecticut.
All 15 in Connecticut → Every provider in New Haven → Advanced Heart Failure and Transplant Cardiology Physician nationwide →
The 8 advanced heart failure and transplant cardiology physician records with the nearest ZIP codes
- Mark Jacobs, M.D.New Haven, CT 065101821445735
- Christopher Maulion, M.D.New Haven, CT 065101558622340
- Zachary Port, MDNew Haven, CT 065101689068645
- Marc Samsky, M.D.New Haven, CT 065101073856951
- Michael Sobieraj, MDNew Haven, CT 065101316441827
- Nikhil Sikand, MDNew Haven, CT 065191558707844
- Michael Chen, M.D.New Haven, CT 065201861649766
- Jennifer Bell, MDHartford, CT 061061285054171
Common questions
What is Katherine Arlene Arner Clark, M.D., M.B.A.'s NPI number?
Katherine Arlene Arner Clark, M.D., M.B.A.'s National Provider Identifier (NPI) is 1417343906, issued on Apr 10, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Arlene Arner Clark, M.D., M.B.A. located?
The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 688-4242. Providers update this record themselves, so call before visiting.
How can I verify Katherine Arlene Arner Clark, M.D., M.B.A.'s license?
NPPES lists Connecticut license number 71692, 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 Katherine Arlene Arner Clark, M.D., M.B.A. prescribe under Medicare Part D?
In 2024, Katherine Arlene Arner Clark, M.D., M.B.A. had 203 Medicare Part D claims for 54 beneficiaries; the average among advanced heart failure and transplant cardiology physician prescribers was 1,965. Part D covers Medicare prescriptions only.
What is Katherine Arlene Arner Clark, M.D., M.B.A.'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.