Joshan K. Shajan, M.D.
Internal Medicine Physician · Cos Cob, CT
Joshan K. Shajan, M.D. is an internal medicine physician with a practice address in Cos Cob, Connecticut, and NPI 1790043040, issued on Apr 24, 2012. Check the license (Connecticut 53782, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Joshan K. Shajan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 53782 CT
A155675 CA
Self-reported in NPPES; status is on the state search - Practice location
- 40 E Putnam Ave Ste 1B, Cos Cob, CT 06807
- Phone
- (203) 489-5442
- Enumerated
- Apr 24, 2012
- Record last updated
- Apr 10, 2026
- Fax
- (203) 325-3270
- Medicare enrollment
- Enrolled (PECOS I20150406001079); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 40 E Putnam Ave Ste 1B
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Morgan O'Neill, FNPFamily Nurse Practitioner1780411165
Verify Joshan K. Shajan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 53782Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
11% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,811 Medicare Part D claims for 334 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 103 claims were for opioids.
Most prescribed
- Amlodipine Besylate168 claims
- Atorvastatin Calcium136 claims
- Levothyroxine Sodium128 claims
- Losartan Potassium107 claims
- Methylprednisolone96 claims
- Metformin Hcl74 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 MIPS final score for 2023 (Medicare payment program): 94.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,090.23
54 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
6 internal medicine physician records list a practice address in Cos Cob
They are 6 of the 125 NPPES records with a practice address in Cos Cob, and 2,623 internal medicine physician records in Connecticut.
All 6 in Cos Cob → All 2,623 in Connecticut → Every provider in Cos Cob →
Other internal medicine physician records in Connecticut
- Hoda Abdel Salam, M.D.New Britain, CT1144509316
- Gada Abdelhafiz, MDNew London, CT1467649558
- Racha Abi Melhem, MDDerby, CT1902471352
- Gerard Abidor, D.O.Bridgeport, CT1518014539
- Lilyan AbrahamFarmington, CT1447693254
- Richard Abraham, M.D.Canton, CT1023044252
- Odaliz Abreu-Lanfranco, MDNew Haven, CT1538276134
- Kenneth Abriola, MDGlastonbury, CT1083693022
- Florentino Abueg, MDSouthbury, CT1649372558
- Nila Aburto, MDStamford, CT1396325718
Common questions
What is Joshan K. Shajan, M.D.'s NPI number?
Joshan K. Shajan, M.D.'s National Provider Identifier (NPI) is 1790043040, issued on Apr 24, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Joshan K. Shajan, M.D. located?
The NPPES record lists a practice address at 40 E Putnam Ave Ste 1B, Cos Cob, CT, 06807. Phone: (203) 489-5442. Providers update this record themselves, so call before visiting.
How can I verify Joshan K. Shajan, M.D.'s license?
NPPES lists Connecticut license number 53782, 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 Joshan K. Shajan, M.D. prescribe under Medicare Part D?
In 2024, Joshan K. Shajan, M.D. had 2,811 Medicare Part D claims for 334 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Joshan K. Shajan, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.2 of 100. 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.