NPPES file of Aug 9, 2026

Michael J. Rajkumar, MD

Infectious Disease Physician · Norwich, CT

Michael J. Rajkumar, MD is an infectious disease physician with a practice address in Norwich, Connecticut, and NPI 1689651143, issued on Dec 27, 2005. Check the license (Connecticut 038660, 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
1689651143
Name
Michael J. Rajkumar
Credential
MD
Primary taxonomy
Infectious Disease Physician 207RI0200X
License number
038660 CT
Self-reported in NPPES; status is on the state search
Practice location
112 Lafayette St, Norwich, CT 06360
Phone
(860) 886-8545
Enumerated
Dec 27, 2005
Record last updated
Aug 19, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(855) 629-7856
Medicaid ID
001386607 CT
Medicare enrollment
Enrolled (PECOS I20041005000210); accepts Medicare assignment
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 112 Lafayette St

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

  1. Ting Li, M.D., PH.D., F.A.C.CCardiovascular Disease Physician1023005667
  2. Vinod Pathy, MDPlastic Surgery Physician1922299098

Verify Michael J. Rajkumar in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 038660
    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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22% fewer Medicare Part D claims than the average infectious disease physician in 2024

539 Medicare Part D claims for 117 beneficiaries, against an average of 689 among the 7,388 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Michael Rajkumar539
  2. Specialty average689

Most prescribed

  1. Minocycline Hcl46 claims
  2. Amoxicillin45 claims
  3. Doxycycline Hyclate44 claims
  4. Biktarvy43 claims
  5. Cephalexin35 claims
  6. Sulfamethoxazole-Trimethoprim29 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): 84.5 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 score79.3
  2. Costout of 100 · 30%59.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  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: $32.07

2 payments; by number, the most common kind was food and beverage; the largest payer was Insmed, Inc. The 3,895 providers of this specialty with any payment received $4,362.19 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Michael Rajkumar$32.07
  2. Specialty average$4,362.19

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. Hartford Healthcare Medical Group Specialists PLLCNorwich, CT

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

Michael J. Rajkumar among 202 infectious disease physician records in Connecticut

Michael J. Rajkumar, MD is one of 202 infectious disease physician records with a practice address in Connecticut. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 89% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1989 · median 2003 among the 136 with a school on file
  • Record last updated2014 · 66% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Infectious Disease Physician providers in Connecticut

There are 202 infectious disease physician records in Connecticut.

The 8 infectious disease physician records with the nearest ZIP codes

  1. Patrick Cahill, M.D.Norwich, CT 063601578884698
  2. Manish Doshi, M.D.Norwich, CT 063601336302314
  3. Sean Harford, MDNorwich, CT 063601922663889
  4. Sir Cedric Abraham Ibanez, M.D.Norwich, CT 063601841496452
  5. Suchita Kumar, M.D.Norwich, CT 063601376830091
  6. Eufronio Maderazo, MDNorwich, CT 063601639156151
  7. Uchenna Okereke, M.D.Norwich, CT 063601437566205
  8. Gurchetan Randhawa, M.D.Norwich, CT 063601831650894

Common questions

What is Michael J. Rajkumar, MD's NPI number?

Michael J. Rajkumar, MD's National Provider Identifier (NPI) is 1689651143, issued on Dec 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael J. Rajkumar, MD located?

The NPPES record lists a practice address at 112 Lafayette St, Norwich, CT, 06360. Phone: (860) 886-8545. Providers update this record themselves, so call before visiting.

How can I verify Michael J. Rajkumar, MD's license?

NPPES lists Connecticut license number 038660, 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 J. Rajkumar, MD prescribe under Medicare Part D?

In 2024, Michael J. Rajkumar, MD had 539 Medicare Part D claims for 117 beneficiaries; the average among infectious disease physician prescribers was 689. Part D covers Medicare prescriptions only.

What is Michael J. Rajkumar, MD's MIPS final score?

The 2023 MIPS final score is 84.5 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.