Doctor profile · Federal record

Dr. Colin Swales, MD

Gastroenterology Physician (CMS: Gastroenterology) · Transplant Hepatology Physician · Internal Medicine Physician · Hartford, CT

  • NPI 1386621464
  • Accepts Medicare
  • MIPS 83.2 / 100 · 2023
  • 23 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
85 Seymour St, Suite 1000
Hartford, CT 061065501
(860) 246-2571
fax (860) 246-3691
Mailing address
2139 Silas Deane Hwy
Rocky Hill, CT 060672336

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
September 1, 2016
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Connecticut #048589
Medicaid
CT #003135317

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1386621464. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
445
Distinct HCPCS
10
Medicare allowed
$47,734
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 182 102 $82
99214 Established patient office or other outpatient visit, 30-39 minutes 44 41 $135
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 43 43 $137
99214 Established patient office or other outpatient visit, 30-39 minutes 38 36 $103
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 30 16 $52
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 28 28 $101
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 27 27 $265
99213 Established patient office or other outpatient visit, 20-29 minutes 22 20 $68
45380 Biopsy of large bowel using a flexible endoscope 17 17 $153
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 14 14 $103

In context: peer comparison

Among 9 peers in Hartford Gastroenterology Physician, average services per provider: 35. This provider delivers 13× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$42,529
Transactions
126
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Madrigal Pharmaceuticals 15 $23,402.30
AstraZeneca Pharmaceuticals Lp 11 $8,429.38
Intercept Pharmaceuticals, INC. 9 $5,113.48
Ipsen Biopharmaceuticals, INC 3 $3,397.85
Abbvie INC. 10 $293.48
Phathom Pharmaceuticals, INC. 20 $284.76
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 10 $214.50
Janssen Biotech, INC. 9 $206.95
Gilead Sciences, INC. 11 $200.38
Evoke Pharma, INC. 8 $156.15
Takeda Pharmaceuticals U.S.A., INC. 5 $148.96
Celgene Corporation 4 $105.54
Ardelyx, INC. 5 $97.58
Lilly USA, LLC 4 $89.91
Regeneron Healthcare Solutions, INC. 2 $56.97

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
$25,768
Honoraria
$8,175
Compensation for Serving As Faculty or As A Speaker for A Medical Education Program
$3,780
Food and Beverage
$3,115
Travel and Lodging
$1,650
Education
$41

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
978
Patients
247
Total drug cost
$823,994
Drug Type Claims Patients Total cost
Pantoprazole Sodium Generic 156 43 $2,110
Ursodiol Generic 137 34 $33,234
Tacrolimus Generic 100 14 $17,386
Ocaliva (Obeticholic Acid) Brand 65 0 $572,497
Spironolactone Generic 65 18 $1,250
Lactulose Generic 64 15 $2,095
Furosemide Generic 61 17 $300
Omeprazole Generic 56 17 $1,184
Xifaxan (Rifaximin) Brand 52 0 $170,838
Carvedilol Generic 45 12 $386

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Colin Swales's medical specialty?
Dr. Colin Swales practices Gastroenterology Physician in Hartford, CT.
Where does Dr. Colin Swales practice?
Dr. Colin Swales practices at 85 Seymour St, Hartford, CT 061065501. Office phone: 8602462571.
What is Dr. Colin Swales's NPI?
Dr. Colin Swales's National Provider Identifier (NPI) is 1386621464, issued by NPPES.
Does Dr. Colin Swales accept Medicare assignment?
Yes. Dr. Colin Swales accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Colin Swales commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.