Doctor profile · Federal record

Dr. Ramanathan Madras Seshadri, M.D.

Surgical Oncology Physician (CMS: Surgical Oncology) · Surgery Physician · Student in an Organized Health Care Education/Training Program · Danbury, CT

  • NPI 1891969937
  • Accepts Medicare
  • MIPS 89.1 / 100 · 2023
  • 24 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
24 Hospital Ave
Danbury, CT 068106099
(203) 739-7000
Additional location
24 Stevens St
Norwalk, CT 068503852
(203) 845-4811
fax (203) 899-5096
Mailing address
24 Stevens St
Norwalk, CT 068503852

Credentials & registration

NPPES · NUCC
NPI registered
April 2008 — 18 yrs on file
Profile last updated
October 12, 2020
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
2086X0206X — NUCC code
State licenses (2)
Connecticut #66791 · North Carolina #2013-00912
Medicaid (2)
NC #1891969937 · SC #NC1866

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1891969937. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
141
Distinct HCPCS
8
Medicare allowed
$24,265
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 33 24 $95
99214 Established patient office or other outpatient visit, 30-39 minutes 24 16 $135
99205 New patient office or other outpatient visit, 60-74 minutes 18 18 $231
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 16 16 $135
99204 New patient office or other outpatient visit, 45-59 minutes 14 14 $175
47562 Removal of gallbladder using an endoscope 13 13 $669
36415 Insertion of needle into vein for collection of blood sample 12 12 $8
76705 Limited ultrasound scan of abdomen 11 11 $29

In context: peer comparison

Among 1 peers in Danbury Surgical Oncology Physician, average services per provider: 17. This provider delivers 8.3× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,456
Transactions
16
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Intuitive Surgical, INC. 8 $2,069.09
Medical Device Business Services, INC. 1 $139.70
Medtronic, INC. 2 $97.62
Olympus America INC. 3 $69.39
Davol INC. 1 $45.85
Dilon Technologies, INC. 1 $34.61

By nature of payment

Travel and Lodging
$1,175
Education
$1,000
Food and Beverage
$282

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Ramanathan Madras Seshadri's medical specialty?
Dr. Ramanathan Madras Seshadri practices Surgical Oncology Physician in Danbury, CT.
Where does Dr. Ramanathan Madras Seshadri practice?
Dr. Ramanathan Madras Seshadri practices at 24 Hospital Ave, Danbury, CT 068106099. Office phone: 2037397000.
What is Dr. Ramanathan Madras Seshadri's NPI?
Dr. Ramanathan Madras Seshadri's National Provider Identifier (NPI) is 1891969937, issued by NPPES.
Does Dr. Ramanathan Madras Seshadri accept Medicare assignment?
Yes. Dr. Ramanathan Madras Seshadri accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Ramanathan Madras Seshadri commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205). Source: CMS Medicare Physician & Other Practitioners file.