Doctor profile · Federal record

Dr. Louis Sussman, MD

Hospitalist Physician (CMS: Internal Medicine) · Internal Medicine Physician · Internal Medicine Physician · Internal Medicine Physician · New Haven, CT

  • NPI 1548365935
  • Accepts Medicare
  • MIPS 84.3 / 100 · 2023
  • 20 yrs in practice
  • Licensed in 3 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
20 York Street, Cb-2041
New Haven, CT 06510
(203) 688-4748
fax (203) 688-4740

Credentials & registration

NPPES · NUCC
NPI registered
September 2006 — 20 yrs on file
Profile last updated
January 6, 2015
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
208M00000X — NUCC code
State licenses (3)
Connecticut #049696 · New Hampshire #RT-1562 · Vermont #042-0011718

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548365935. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
45
Distinct HCPCS
1
Medicare allowed
$3,718
HCPCS Description Services Patients Avg allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 45 26 $83

In context: peer comparison

Among 59 peers in New Haven Hospitalist Physician, average services per provider: 74. This provider delivers 0.6× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Louis Sussman's medical specialty?
Dr. Louis Sussman practices Hospitalist Physician in New Haven, CT.
Where does Dr. Louis Sussman practice?
Dr. Louis Sussman practices at 20 York Street, Cb-2041, New Haven, CT 06510. Office phone: 2036884748.
What is Dr. Louis Sussman's NPI?
Dr. Louis Sussman's National Provider Identifier (NPI) is 1548365935, issued by NPPES.
Does Dr. Louis Sussman accept Medicare assignment?
Yes. Dr. Louis Sussman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Louis Sussman commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.