NPPES file of Aug 9, 2026

Mark Jason Polatnick, M.D.

Internal Medicine Physician · West Hartford, CT

Mark Jason Polatnick, M.D. is an internal medicine physician with a practice address in West Hartford, Connecticut, and NPI 1376562090, issued on Jul 19, 2006. Check the license (Connecticut 038683, 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
1376562090
Name
Mark Jason Polatnick
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
038683 CT
Self-reported in NPPES; status is on the state search
Practice location
41 N Main St, West Hartford, CT 06107
Phone
(860) 313-0448
Enumerated
Jul 19, 2006
Record last updated
Jun 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(860) 313-1464
Medicaid ID
1376562090 CT
Medicare enrollment
Enrolled (PECOS I20080715000860); accepts Medicare assignment
Medical or professional school
Georgetown University School Of Medicine, 1996
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.
Download card Updates feed

Also registered at 41 N Main St

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

  1. Dawn Cohen, LCSWClinical Social Worker1013337047
  2. Lori Devito, LCSWClinical Social Worker1326584020
  3. Kathleen Johndrow, LCSWClinical Social Worker1023168143
  4. Michele Marek, APRNFamily Nurse Practitioner1144324229
  5. John Papandrea, MDInternal Medicine Physician1083638837
  6. Peter Radasch, PSY.D.Psychologist1336248806

Verify Mark Jason Polatnick in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 038683
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

95% more Medicare Part D claims than the average internal medicine physician in 2024

6,199 Medicare Part D claims for 445 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. 316 claims were for opioids.

  1. Mark Polatnick6,199
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium349 claims
  2. Rosuvastatin Calcium181 claims
  3. Amlodipine Besylate173 claims
  4. Metformin Hcl166 claims
  5. Losartan Potassium140 claims
  6. Gabapentin122 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: $2,559.35

98 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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. Mark Polatnick$2,559.35
  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 PCWest Hartford, CT

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

Mark Jason Polatnick among 2,623 internal medicine physician records in Connecticut

Mark Jason Polatnick, M.D. is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 52% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated1996 · median 2004 among the 1,646 with a school on file
  • Record last updated2021 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

51 internal medicine physician records list a practice address in West Hartford

They are 51 of the 1,653 NPPES records with a practice address in West Hartford, and 2,623 internal medicine physician records in Connecticut.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Sally Ardolino, MDWest Hartford, CT 061071376569392
  2. Anthony Ardolino, MDWest Hartford, CT 061071386658276
  3. Matthew Colliton, MDWest Hartford, CT 061071609853126
  4. Philip Karanian, MDWest Hartford, CT 061071437136132
  5. Rolf Knoll, MDWest Hartford, CT 061071881696193
  6. John Papandrea, MDWest Hartford, CT 061071083638837
  7. Julian Parsons, M.D.West Hartford, CT 061071639111008
  8. Maria Quinones, M.DWest Hartford, CT 061071164567434

Common questions

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

Mark Jason Polatnick, M.D.'s National Provider Identifier (NPI) is 1376562090, issued on Jul 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Jason Polatnick, M.D. located?

The NPPES record lists a practice address at 41 N Main St, West Hartford, CT, 06107. Phone: (860) 313-0448. Providers update this record themselves, so call before visiting.

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

NPPES lists Connecticut license number 038683, 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 Jason Polatnick, M.D. prescribe under Medicare Part D?

In 2024, Mark Jason Polatnick, M.D. had 6,199 Medicare Part D claims for 445 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.