Doctor profile · Federal record

Dr. Giulio Rottaro Castejon, MD

Hospitalist Physician · Critical Care Medicine (Internal Medicine) Physician · Pulmonary Disease Physician · Pediatrics Physician · New Haven, CT

  • NPI 1235659434
  • MIPS 84.3 / 100 · 2023
  • 9 yrs on file
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20 York Street, Thompkins 226
New Haven, CT 065103220
(203) 688-9503

Credentials & registration

NPPES · NUCC
NPI registered
June 2017 — 9 yrs on file
Profile last updated
June 14, 2024
Specialty taxonomy
208M00000X — NUCC code
State licenses (2)
Connecticut #67508 · Massachusetts #271764

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1235659434. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
325
Distinct HCPCS
6
Medicare allowed
$30,346
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 174 44 $79
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 47 26 $114
99231 Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 39 11 $50
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 25 25 $174
99239 Hospital discharge day management, more than 30 minutes 25 24 $116
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 15 15 $131

In context: peer comparison

Among 59 peers in New Haven Hospitalist Physician, average services per provider: 74. This provider delivers 4.4× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Giulio Rottaro Castejon's medical specialty?
Dr. Giulio Rottaro Castejon practices Hospitalist Physician in New Haven, CT.
Where does Dr. Giulio Rottaro Castejon practice?
Dr. Giulio Rottaro Castejon practices at 20 York Street, New Haven, CT 065103220. Office phone: 2036889503.
What is Dr. Giulio Rottaro Castejon's NPI?
Dr. Giulio Rottaro Castejon's National Provider Identifier (NPI) is 1235659434, issued by NPPES.
What procedures does Dr. Giulio Rottaro Castejon commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231). Source: CMS Medicare Physician & Other Practitioners file.