NPPES file of Aug 9, 2026

Michael M. Einstein, M.D.

Gastroenterology Physician · Hartford, CT

Michael M. Einstein, M.D. is a gastroenterology physician with a practice address in Hartford, Connecticut, and NPI 1659339901, issued on May 3, 2006. Check the license (Connecticut 49700, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1659339901
Name
Michael M. Einstein
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
49700 CT
Self-reported in NPPES; status is on the state search
Practice location
85 Seymour St, Hartford, CT 06106
Phone
(860) 246-2571
Enumerated
May 3, 2006
Record last updated
Aug 10, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(860) 246-3691
Medicare enrollment
Enrolled (PECOS I20110728000024); accepts Medicare assignment
Medical or professional school
Icahn School Of Medicine At Mount Sinai, 2003
Telehealth
Offers telehealth (CMS)
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 85 Seymour St

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

  1. Aderonke Adeniji, M.D.Internal Medicine Physician1649552159
  2. Philip AllmendingerVascular Surgery Physician1861492241
  3. James Alvarez, PHYSICIAN ASSISTANTPhysician Assistant1407853575
  4. Joseph Anquillare, M.D.Geriatric Medicine (Internal Medicine) Physician1316043045
  5. Samuel Anyatonwu, MDInternal Medicine Physician1023028933
  6. Alan Armstrong, P.A.Physician Assistant1790761898

Verify Michael M. Einstein in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 49700
    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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2.9 times the Medicare Part D claims of the average gastroenterology physician in 2024

2,340 Medicare Part D claims for 331 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D.

  1. Michael Einstein2,340
  2. Specialty average811

Most prescribed

  1. Tacrolimus252 claims
  2. Carvedilol206 claims
  3. Pantoprazole Sodium183 claims
  4. Ursodiol148 claims
  5. Spironolactone137 claims
  6. Furosemide134 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): 85.1 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.

  1. Qualityout of 100 · 30% of the final score89.7
  2. Costout of 100 · 30%68.3
  3. Promoting interoperabilityout of 100 · 25%83.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $23,437.08

135 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 13,350 providers of this specialty with any payment received $5,015.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Einstein$23,437
  2. Specialty average$5,016

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

2 hospitals and group practices

  1. Hartford HospitalHartford, CT · Acute Care Hospitals4 of 5 stars
  2. Connecticut GI PLLCHartford, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Michael M. Einstein among 336 gastroenterology physician records in Connecticut

Michael M. Einstein, M.D. is one of 336 gastroenterology physician records with a practice address in Connecticut. 86% 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 15% of them.

  • NPI issued2006 · 15% of these records are older, 49% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2003 · median 2001 among the 255 with a school on file
  • Record last updated2011 · 69% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Connecticut

There are 336 gastroenterology physician records in Connecticut.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. David Chaletsky, MDHartford, CT 061061316193055
  2. Teresa Da Cunha, MDHartford, CT 061061346806841
  3. Michael Golioto, MDHartford, CT 061061811091432
  4. Maria Johnson, M.D.Hartford, CT 061061033300728
  5. Michael Karasik, MDHartford, CT 061061346344967
  6. Kristin Marcous, PAHartford, CT 061061801015854
  7. Jeffry Nestler, MDHartford, CT 061061275637886
  8. Nihal Patel, MDHartford, CT 061061720375090

Common questions

What is Michael M. Einstein, M.D.'s NPI number?

Michael M. Einstein, M.D.'s National Provider Identifier (NPI) is 1659339901, issued on May 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael M. Einstein, M.D. located?

The NPPES record lists a practice address at 85 Seymour St, Hartford, CT, 06106. Phone: (860) 246-2571. Providers update this record themselves, so call before visiting.

How can I verify Michael M. Einstein, M.D.'s license?

NPPES lists Connecticut license number 49700, 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 Michael M. Einstein, M.D. prescribe under Medicare Part D?

In 2024, Michael M. Einstein, M.D. had 2,340 Medicare Part D claims for 331 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

What is Michael M. Einstein, M.D.'s MIPS final score?

The 2023 MIPS final score is 85.1 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.