Doctor profile · Federal record

Dr. Megan Gallagher, M.D.

Infectious Disease Physician (CMS: Internal Medicine) · Infectious Disease Physician · Springfield, MA

  • NPI 1114284890
  • Accepts Medicare
  • 18 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
3300 Main St Fl 3
Springfield, MA 011071112
(413) 794-7394
fax (413) 794-7136
Additional location
80 Seymour St
Hartford, CT 061063315
(860) 972-2878
Mailing address
280 Chestnut St Fl 2
Springfield, MA 011991619

Credentials & registration

NPPES · NUCC
NPI registered
April 2012 — 14 yrs on file
Profile last updated
October 19, 2024
Year of graduation
2008 — 18 yrs since
Specialty taxonomy
207RI0200X — NUCC code
State licenses (2)
Massachusetts #275103 · Connecticut #79563

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1114284890. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
365
Distinct HCPCS
8
Medicare allowed
$40,847
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 110 64 $120
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 82 58 $80
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 51 50 $131
99214 Established patient office or other outpatient visit, 30-39 minutes 48 32 $98
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 29 28 $175
99215 Established patient office or other outpatient visit, 40-54 minutes 18 12 $144
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 14 14 $83
99213 Established patient office or other outpatient visit, 20-29 minutes 13 11 $67

In context: peer comparison

Among 5 peers in this city , average services per provider: 46. This provider delivers 7.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
183
Patients
0
Total drug cost
$319,988
Drug Type Claims Patients Total cost
Doxycycline Hyclate Generic 26 0 $887
Biktarvy (Bictegrav/Emtricit/Tenofov Ala) Brand 24 0 $131,067
Odefsey (Emtricitab/Rilpiviri/Tenof Ala) Brand 24 0 $90,108
Tivicay (Dolutegravir Sodium) Brand 21 0 $50,224
Vancomycin Hcl Generic 21 0 $1,359
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 17 0 $187
Levofloxacin Generic 15 0 $90
Delstrigo (Doravirine/Lamivu/Tenofov Diso) Brand 13 0 $34,301
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 11 0 $209
Emtricitabine-Tenofovir Disop (Emtricitabine/Tenofovir (Tdf)) Brand 11 0 $11,556

Frequently asked questions

Auto-generated from federal data
What is Dr. Megan Gallagher's medical specialty?
Dr. Megan Gallagher practices Infectious Disease Physician in Springfield, MA.
Where does Dr. Megan Gallagher practice?
Dr. Megan Gallagher practices at 3300 Main St Fl 3, Springfield, MA 011071112. Office phone: 4137947394.
What is Dr. Megan Gallagher's NPI?
Dr. Megan Gallagher's National Provider Identifier (NPI) is 1114284890, issued by NPPES.
Does Dr. Megan Gallagher accept Medicare assignment?
Yes. Dr. Megan Gallagher accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Megan Gallagher commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222). Source: CMS Medicare Physician & Other Practitioners file.