Doctor profile · Federal record

Dr. Gustavo Alday, M.D.

Internal Medicine Physician (CMS: Internal Medicine) · Hospitalist Physician · Danbury, CT

  • NPI 1962544098
  • Accepts Medicare
  • MIPS 89.1 / 100 · 2023
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
24 Hospital Ave
Danbury, CT 068106099
(203) 739-6959

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
March 20, 2012
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Connecticut #044901

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1962544098. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
390
Distinct HCPCS
4
Medicare allowed
$43,799
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 212 108 $125
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 86 53 $84
99239 Hospital discharge day management, more than 30 minutes 64 63 $120
99238 Hospital discharge day management, 30 minutes or less 28 28 $86

In context: peer comparison

Among 35 peers in Danbury Internal Medicine Physician, average services per provider: 136. This provider delivers 2.9× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Gustavo Alday's medical specialty?
Dr. Gustavo Alday practices Internal Medicine Physician in Danbury, CT.
Where does Dr. Gustavo Alday practice?
Dr. Gustavo Alday practices at 24 Hospital Ave, Danbury, CT 068106099. Office phone: 2037396959.
What is Dr. Gustavo Alday's NPI?
Dr. Gustavo Alday's National Provider Identifier (NPI) is 1962544098, issued by NPPES.
Does Dr. Gustavo Alday accept Medicare assignment?
Yes. Dr. Gustavo Alday accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gustavo Alday 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); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.