Joshan K. Shajan, M.D.
NPI 1790043040ActiveIndividual· Internal Medicine· Cos Cob, CT
Internal Medicine (M.D.) in Cos Cob, Connecticut, licensed in CT and CA, with an NPI issued in April 2012. 230 Medicare patients in 2024, $122,111 paid; nearly all of their 2,811 Part D prescriptions were generic (91%). Abbvie Inc. was the largest of 3 companies reporting payments in 2025, $91.06 in all, mostly food and beverage. Lists Greenwich Hospital Association - and 1 other hospital as hospital affiliations.
Overview
| NPI | 1790043040 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 24, 2012 |
| Last updated in NPPES | Apr 10, 2026 |
| Certified by provider | Apr 10, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 53782 | CT |
| General Practice | 208D00000X | A155675 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 230 |
|---|---|
| Services billed | 1,809 across 46 procedure codes |
| Paid by Medicare | $122,111 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,811 · 5,282 30-day fills |
|---|---|
| Patients | 334 |
| Total drug cost | $150,853 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2012 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Greenwich Hospital Association -Greenwich, CT
- Stamford HospitalStamford, CT
Other facilities
- Sterling Care LLCHome health agency · Greenwich, CT
- Visiting Nurse & Hospice of Fairfield County, IncHome health agency · Wilton, CT
Industry payments (Open Payments)
- 2025$91.06 · 5 payments from 3 companies
- 2024$1,096 · 55 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $60.35 | 3 |
| Azurity Pharmaceuticals, Inc. | $16.76 | 1 |
| Astrazeneca Pharmaceuticals LP | $13.95 | 1 |
What the 2025 payments were for
- Food and Beverage$91.06 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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