Doctor profile · Federal record

Dr. Sidharta Gangadharan, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (CMS: Thoracic Surgery) · Boston, MA

  • NPI 1184656605
  • Accepts Medicare
  • 30 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
Beth Israel Deaconess MED Ctr, 110 Francis St, Ste 2A
Boston, MA 02215
(617) 632-8383
Additional location
830 Harrison Ave, Ste 3400, Moakley Building
Boston, MA 02118
(617) 414-8060
fax (617) 414-8012
Mailing address
124 Davis Ave, #3
Brookline, MA 024457634

Credentials & registration

NPPES · NUCC
NPI registered
July 2006 — 20 yrs on file
Profile last updated
April 14, 2022
Year of graduation
1996 — 30 yrs since
Specialty taxonomy
208G00000X — NUCC code
State license (1)
Massachusetts #158136

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1184656605. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
499
Distinct HCPCS
10
Medicare allowed
$44,254
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 186 156 $70
99442 Telephone medical discussion with physician, 11-20 minutes 57 50 $70
99214 Established patient office or other outpatient visit, 30-39 minutes 39 35 $102
99443 Telephone medical discussion with physician, 21-30 minutes 39 35 $103
99205 New patient office or other outpatient visit, 60-74 minutes 33 33 $193
99441 Telephone medical discussion with physician, 5-10 minutes 33 33 $37
99213 Established patient office or other outpatient visit, 20-29 minutes 29 27 $69
31624 Irrigation and suction of lung airways to obtain cells using an endoscope 19 15 $85
32674 Removal of lymph nodes of chest cavity using an endoscope 19 19 $209
99441 Telephone medical discussion with physician, 5-10 minutes 17 16 $37

In context: peer comparison

Among 31 peers in Boston Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician, average services per provider: 38. This provider delivers 13× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Sidharta Gangadharan's medical specialty?
Dr. Sidharta Gangadharan practices Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Boston, MA.
Where does Dr. Sidharta Gangadharan practice?
Dr. Sidharta Gangadharan practices at Beth Israel Deaconess MED Ctr, Boston, MA 02215. Office phone: 6176328383.
What is Dr. Sidharta Gangadharan's NPI?
Dr. Sidharta Gangadharan's National Provider Identifier (NPI) is 1184656605, issued by NPPES.
Does Dr. Sidharta Gangadharan accept Medicare assignment?
Yes. Dr. Sidharta Gangadharan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sidharta Gangadharan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Telephone medical discussion with physician (HCPCS 99442); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.