NPPES file of Aug 9, 2026

Jacques Mendelsohn, MD

Internal Medicine Physician · Rocky Hill, CT

Jacques Mendelsohn, MD is an internal medicine physician with a practice address in Rocky Hill, Connecticut, and NPI 1861416703, issued on Jul 26, 2006. Check the license (Connecticut 020510, 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
1861416703
Name
Jacques Mendelsohn
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
020510 CT
Self-reported in NPPES; status is on the state search
Practice location
506 Cromwell Ave, Rocky Hill, CT 06067
Phone
(860) 529-1287
Enumerated
Jul 26, 2006
Record last updated
Jun 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(860) 721-6311
Medicaid ID
001205103 CT
Medicare enrollment
Enrolled (PECOS I20100508000098); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 1977
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 506 Cromwell Ave

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

  1. Anila Gjuzi, FNP-BCFamily Nurse Practitioner1518640127
  2. Jeffrey Kahn, D.P.M.Podiatrist1609931245
  3. Jason Kemish, MSPTPhysical Therapist1407805179
  4. Gail Lagana, APRNAdult Health Nurse Practitioner1417261124
  5. Thomas Sweeney, RPTPhysical Therapist1184627671
  6. Elmo Villanueva, MDInternal Medicine Physician1831110717

Verify Jacques Mendelsohn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 020510
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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4.1 times the Medicare Part D claims of the average internal medicine physician in 2024

13,071 Medicare Part D claims for 517 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 14% of claims. 469 claims were for opioids.

  1. Jacques Mendelsohn13,071
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium791 claims
  2. Trazodone Hcl526 claims
  3. Amlodipine Besylate409 claims
  4. Levothyroxine Sodium395 claims
  5. Eliquis349 claims
  6. Lisinopril329 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: $241.25

11 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jacques Mendelsohn$241.25
  2. Specialty average$1,303.06

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. Collins Medical Associates 2 PCRocky Hill, CT

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

8 internal medicine physician records list a practice address in Rocky Hill

They are 8 of the 440 NPPES records with a practice address in Rocky Hill, and 2,623 internal medicine physician records in Connecticut.

Other internal medicine physician records in Connecticut

  1. Hoda Abdel Salam, M.D.New Britain, CT1144509316
  2. Gada Abdelhafiz, MDNew London, CT1467649558
  3. Racha Abi Melhem, MDDerby, CT1902471352
  4. Gerard Abidor, D.O.Bridgeport, CT1518014539
  5. Lilyan AbrahamFarmington, CT1447693254
  6. Richard Abraham, M.D.Canton, CT1023044252
  7. Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
  8. Kenneth Abriola, MDGlastonbury, CT1083693022
  9. Florentino Abueg, MDSouthbury, CT1649372558
  10. Nila Aburto, MDStamford, CT1396325718

Common questions

What is Jacques Mendelsohn, MD's NPI number?

Jacques Mendelsohn, MD's National Provider Identifier (NPI) is 1861416703, issued on Jul 26, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jacques Mendelsohn, MD located?

The NPPES record lists a practice address at 506 Cromwell Ave, Rocky Hill, CT, 06067. Phone: (860) 529-1287. Providers update this record themselves, so call before visiting.

How can I verify Jacques Mendelsohn, MD's license?

NPPES lists Connecticut license number 020510, 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 Jacques Mendelsohn, MD prescribe under Medicare Part D?

In 2024, Jacques Mendelsohn, MD had 13,071 Medicare Part D claims for 517 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.