Doctor profile · Federal record

Dr. George Velmahos, MD PHD

Trauma Surgery Physician (CMS: General Surgery) · Surgical Critical Care Physician · Boston, MA

  • NPI 1912966094
  • Accepts Medicare
  • 40 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
165 Cambridge Street, Suite 810 Trauma and Surgical Critical Care
Boston, MA 021142696
(617) 726-9591
fax (617) 726-9121
Mailing address
Po Box 9142, Mass General Physician Organization
Charlestown, MA 021299142

Credentials & registration

NPPES · NUCC
NPI registered
March 2006 — 20 yrs on file
Profile last updated
June 18, 2014
Year of graduation
1986 — 40 yrs since
Specialty taxonomy
2086S0127X — NUCC code
State license (1)
Massachusetts #221346
Medicaid
MA #2066122

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912966094. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
481
Distinct HCPCS
10
Medicare allowed
$41,551
HCPCS Description Services Patients Avg allowed
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 203 99 $53
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 55 37 $84
99212 Established patient office or other outpatient visit, 10-19 minutes 51 43 $38
99213 Established patient office or other outpatient visit, 20-29 minutes 49 45 $70
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 43 43 $138
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 20 20 $88
99238 Hospital discharge day management, 30 minutes or less 20 19 $87
99211 Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 15 15 $9
47562 Removal of gallbladder using an endoscope 13 13 $700
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 12 12 $184

In context: peer comparison

Among 7 peers in this city , average services per provider: 60. This provider delivers 8.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$138
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 1 $115.08
Smith+Nephew, Inc. 1 $22.83

By nature of payment

Food and Beverage
$138

Frequently asked questions

Auto-generated from federal data
What is Dr. George Velmahos's medical specialty?
Dr. George Velmahos practices Trauma Surgery Physician in Boston, MA.
Where does Dr. George Velmahos practice?
Dr. George Velmahos practices at 165 Cambridge Street, Boston, MA 021142696. Office phone: 6177269591.
What is Dr. George Velmahos's NPI?
Dr. George Velmahos's National Provider Identifier (NPI) is 1912966094, issued by NPPES.
Does Dr. George Velmahos accept Medicare assignment?
Yes. Dr. George Velmahos accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. George Velmahos commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99212). Source: CMS Medicare Physician & Other Practitioners file.