Doctor profile · Federal record

Dr. Marc Mendelsohn, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · General Practice Physician · Saint Louis, MO

  • NPI 1699110379
  • Accepts Medicare
  • MIPS 79.3 / 100 · 2023
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
400 S Kingshighway Blvd, Dept Emergency MED
Saint Louis, MO 631101014
(314) 362-9123
fax (314) 747-3338
Mailing address
Po Box 7412011
Chicago, IL 606742011

Credentials & registration

NPPES · NUCC
NPI registered
May 2013 — 13 yrs on file
Profile last updated
April 17, 2025
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207P00000X — NUCC code
State license (1)
Missouri #2019018127
Medicaid
MO #200069983

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1699110379. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
345
Distinct HCPCS
6
Medicare allowed
$36,745
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 125 121 $175
93010 Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 109 107 $8
99284 Emergency department visit with moderate level of medical decision making 57 56 $120
99291 Critical care, first 30-74 minutes 23 23 $212
99283 Emergency department visit with low level of medical decision making 19 18 $69
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 12 12 $78

In context: peer comparison

Among 121 peers in Saint Louis Emergency Medicine Physician, average services per provider: 92. This provider delivers 3.8× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Marc Mendelsohn's medical specialty?
Dr. Marc Mendelsohn practices Emergency Medicine Physician in Saint Louis, MO.
Where does Dr. Marc Mendelsohn practice?
Dr. Marc Mendelsohn practices at 400 S Kingshighway Blvd, Saint Louis, MO 631101014. Office phone: 3143629123.
What is Dr. Marc Mendelsohn's NPI?
Dr. Marc Mendelsohn's National Provider Identifier (NPI) is 1699110379, issued by NPPES.
Does Dr. Marc Mendelsohn accept Medicare assignment?
Yes. Dr. Marc Mendelsohn accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marc Mendelsohn commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (HCPCS 93010); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.