Doctor profile · Federal record

Dr. Thomas Gallagher, MD

Internal Medicine Physician (CMS: Internal Medicine) · Hinsdale, IL

  • NPI 1467427641
  • Accepts Medicare
  • 37 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
40 S Clay St Ste 210E
Hinsdale, IL 605213287
(630) 323-3540
fax (630) 323-9079
Mailing address
Po Box 713260
Chicago, IL 606771260

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
August 8, 2023
Year of graduation
1989 — 37 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Illinois #036082741
Medicaid
IL #036082741

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1467427641. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,419
Distinct HCPCS
10
Medicare allowed
$56,740
HCPCS Description Services Patients Avg allowed
36415 Insertion of needle into vein for collection of blood sample 224 137 $8
99214 Established patient office or other outpatient visit, 30-39 minutes 157 93 $133
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 148 120 $8
80053 Blood test, comprehensive group of blood chemicals 134 112 $10
80061 Blood test, lipids (cholesterol and triglycerides) 105 102 $13
84443 Blood test, thyroid stimulating hormone (tsh) 105 104 $16
83036 Hemoglobin a1c level 80 68 $10
85610 Blood test, clotting time 72 37 $4
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 72 72 $133
G0103 Prostate cancer screening; prostate specific antigen test (psa) 42 42 $19

In context: peer comparison

Among 14 peers in Hinsdale Internal Medicine Physician, average services per provider: 134. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$192
Transactions
7
Manufacturers
6
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 2 $47.96
Abbott Laboratories 1 $43.79
GlaxoSmithKline, LLC. 1 $31.85
Abbvie INC. 1 $26.38
Exact Sciences Corporation 1 $24.77
AstraZeneca Pharmaceuticals Lp 1 $17.26

By nature of payment

Food and Beverage
$192

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,551
Patients
1,032
Total drug cost
$55,357
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 626 179 $9,290
Levothyroxine Sodium Generic 370 99 $6,570
Amlodipine Besylate Generic 344 104 $3,881
Losartan Potassium Generic 329 95 $4,110
Simvastatin Generic 287 83 $3,656
Lisinopril Generic 275 81 $2,910
Metoprolol Succinate Generic 196 55 $4,285
Sertraline Hcl Generic 165 48 $1,787
Rosuvastatin Calcium Generic 162 49 $2,411
Pantoprazole Sodium Generic 160 55 $3,276

Frequently asked questions

Auto-generated from federal data
What is Dr. Thomas Gallagher's medical specialty?
Dr. Thomas Gallagher practices Internal Medicine Physician in Hinsdale, IL.
Where does Dr. Thomas Gallagher practice?
Dr. Thomas Gallagher practices at 40 S Clay St Ste 210E, Hinsdale, IL 605213287. Office phone: 6303233540.
What is Dr. Thomas Gallagher's NPI?
Dr. Thomas Gallagher's National Provider Identifier (NPI) is 1467427641, issued by NPPES.
Does Dr. Thomas Gallagher accept Medicare assignment?
Yes. Dr. Thomas Gallagher accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thomas Gallagher commonly perform?
Top Medicare-reported procedures in 2023: Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99214); Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (HCPCS 85025). Source: CMS Medicare Physician & Other Practitioners file.