Doctor profile · Federal record

Dr. Smita Sihag, M.D.

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

  • NPI 1457556037
  • Accepts Medicare
  • MIPS 88.8 / 100 · 2023
  • 19 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
Massachusetts General Hospital, 55 Fruit Street
Boston, MA 02114
(617) 726-2000

Credentials & registration

NPPES · NUCC
NPI registered
June 2007 — 19 yrs on file
Profile last updated
December 7, 2016
Year of graduation
2007 — 19 yrs since
Specialty taxonomy
208600000X — NUCC code
State license (1)
Massachusetts #L-232238

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1457556037. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
525
Distinct HCPCS
6
Medicare allowed
$90,184
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 254 171 $111
99205 New patient office or other outpatient visit, 60-74 minutes 106 106 $207
99215 Established patient office or other outpatient visit, 40-54 minutes 101 73 $161
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or 27 26 $35
32674 Removal of lymph nodes of chest cavity using an endoscope 19 18 $247
32666 Initial removal of wedge of lung tissue using an endoscope 18 17 $1,007

In context: peer comparison

Among 61 peers in Boston Surgery Physician, average services per provider: 58. This provider delivers 9.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,833
Transactions
5
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Intuitive Surgical, INC. 2 $1,551.81
AstraZeneca Pharmaceuticals Lp 2 $156.69
Merck Sharp & Dohme LLC 1 $124.93

By nature of payment

Compensation for Services Other Than Consulting, Including Serving As Faculty or As A Speaker at A Venue Other Than A Continuing Education Program
$1,500
Food and Beverage
$333

Frequently asked questions

Auto-generated from federal data
What is Dr. Smita Sihag's medical specialty?
Dr. Smita Sihag practices Surgery Physician in Boston, MA.
Where does Dr. Smita Sihag practice?
Dr. Smita Sihag practices at Massachusetts General Hospital, Boston, MA 02114. Office phone: 6177262000.
What is Dr. Smita Sihag's NPI?
Dr. Smita Sihag's National Provider Identifier (NPI) is 1457556037, issued by NPPES.
Does Dr. Smita Sihag accept Medicare assignment?
Yes. Dr. Smita Sihag accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Smita Sihag commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99205); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.