Doctor profile · Federal record

Dr. Kowshik Sen, DO

Internal Medicine Physician (CMS: Hospitalist) · Student in an Organized Health Care Education/Training Program · Valhalla, NY

  • NPI 1356839666
  • Accepts Medicare
  • MIPS 88.5 / 100 · 2023
  • 8 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
100 Woods RD
Valhalla, NY 105951530
(914) 493-7000

Credentials & registration

NPPES · NUCC
NPI registered
April 2018 — 8 yrs on file
Profile last updated
September 3, 2021
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Florida #OS17860

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1356839666. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
984
Distinct HCPCS
7
Medicare allowed
$99,614
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 388 198 $78
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 214 134 $118
99239 Hospital discharge day management, more than 30 minutes 163 157 $113
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 101 101 $172
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 75 43 $50
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 23 23 $130
99238 Hospital discharge day management, 30 minutes or less 20 20 $80

In context: peer comparison

Among 21 peers in Valhalla Internal Medicine Physician, average services per provider: 104. This provider delivers 9.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$54
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Amgen INC. 1 $34.80
Mallinckrodt Hospital Products INC. 1 $18.71

By nature of payment

Food and Beverage
$54

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
178
Patients
176
Total drug cost
$10,097
Drug Type Claims Patients Total cost
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 29 29 $216
Prednisone Generic 25 25 $69
Azithromycin Generic 23 23 $116
Atorvastatin Calcium Generic 19 17 $129
Eliquis (Apixaban) Brand 16 16 $9,278
Furosemide Generic 16 16 $40
Amlodipine Besylate Generic 14 14 $42
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 14 14 $52
Doxycycline Hyclate Generic 11 11 $83
Methylprednisolone Generic 11 11 $70

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Kowshik Sen's medical specialty?
Dr. Kowshik Sen practices Internal Medicine Physician in Valhalla, NY.
Where does Dr. Kowshik Sen practice?
Dr. Kowshik Sen practices at 100 Woods RD, Valhalla, NY 105951530. Office phone: 9144937000.
What is Dr. Kowshik Sen's NPI?
Dr. Kowshik Sen's National Provider Identifier (NPI) is 1356839666, issued by NPPES.
Does Dr. Kowshik Sen accept Medicare assignment?
Yes. Dr. Kowshik Sen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kowshik Sen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.