NPPES file of Aug 9, 2026

Mark Jacobs, M.D.

Advanced Heart Failure and Transplant Cardiology Physician · New Haven, CT

Mark Jacobs, M.D. is an advanced heart failure and transplant cardiology physician with a practice address in New Haven, Connecticut, and NPI 1821445735, issued on May 20, 2016. Check the license (Connecticut 1.081145, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1821445735
Name
Mark Jacobs
Credential
M.D.
Primary taxonomy
Advanced Heart Failure and Transplant Cardiology Physician 207RA0001X
License number
1.081145 CT
Self-reported in NPPES; status is on the state search
Practice location
20 York St, New Haven, CT 06510
Phone
(203) 737-2090
Enumerated
May 20, 2016
Record last updated
May 30, 2025
Medicare enrollment
Enrolled (PECOS I20250917004631); accepts Medicare assignment
Medical or professional school
Albert Einstein College Of Medicine Of Yeshiva University, 2016
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 20 York St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Cyrena Abbasi, MDStudent in an Organized Health Care Education/Training Program1609703289
  2. Ali Abboud, MD, MBAStudent in an Organized Health Care Education/Training Program1942943097
  3. Basil Abdalla, MDStudent in an Organized Health Care Education/Training Program1154905057
  4. Jasmina AbdallaStudent in an Organized Health Care Education/Training Program1700638590
  5. Sarah AbdallahPsychiatry Physician1740800952
  6. Usama Abdelghany, PHARM DOncology Pharmacist1548827843

Verify Mark Jacobs in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 1.081145
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

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98% fewer Medicare Part D claims than the average advanced heart failure and transplant cardiology physician in 2024

42 Medicare Part D claims, against an average of 1,965 among the 1,124 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Mark Jacobs42
  2. Specialty average1,965

Most prescribed

  1. Entresto13 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.

Industry payments in 2024: $543.08

7 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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.

  1. Mark Jacobs$543
  2. Specialty average$10,266

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

  1. Yale UniversityBranford, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark Jacobs among 15 advanced heart failure and transplant cardiology physician records in Connecticut

Mark Jacobs, M.D. 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 2016, is newer than 87% of them.

  • NPI issued2016 · 87% of these records are older, 7% newer
  • In a Medicare fileYes · 100% of these records are
  • In the CMS Doctors and Clinicians fileYes · 100% of these records are
  • Graduated2016 · median 2013 among the 15 with a school on file
  • Record last updated2025 · 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.

The 8 advanced heart failure and transplant cardiology physician records with the nearest ZIP codes

  1. Katherine Clark, M.D., M.B.A.New Haven, CT 065101417343906
  2. Christopher Maulion, M.D.New Haven, CT 065101558622340
  3. Zachary Port, MDNew Haven, CT 065101689068645
  4. Marc Samsky, M.D.New Haven, CT 065101073856951
  5. Michael Sobieraj, MDNew Haven, CT 065101316441827
  6. Nikhil Sikand, MDNew Haven, CT 065191558707844
  7. Michael Chen, M.D.New Haven, CT 065201861649766
  8. Jennifer Bell, MDHartford, CT 061061285054171

Common questions

What is Mark Jacobs, M.D.'s NPI number?

Mark Jacobs, M.D.'s National Provider Identifier (NPI) is 1821445735, issued on May 20, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Mark Jacobs, M.D. located?

The NPPES record lists a practice address at 20 York St, New Haven, CT, 06510. Phone: (203) 737-2090. Providers update this record themselves, so call before visiting.

How can I verify Mark Jacobs, M.D.'s license?

NPPES lists Connecticut license number 1.081145, 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 Mark Jacobs, M.D. prescribe under Medicare Part D?

In 2024, Mark Jacobs, M.D. had 42 Medicare Part D claims; the average among advanced heart failure and transplant cardiology physician prescribers was 1,965. Part D covers Medicare prescriptions only.

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.