Doctor profile · Federal record

Dr. Reinier van Tonder, MD

Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · New Haven, CT

  • NPI 1588654412
  • Accepts Medicare
  • MIPS 71.7 / 100 · 2023
  • 29 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
333 Cedar St, Yale Medical School
New Haven, CT 065103206
(507) 261-7284

Credentials & registration

NPPES · NUCC
NPI registered
October 2005 — 21 yrs on file
Profile last updated
August 27, 2017
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207P00000X — NUCC code
State licenses (2)
Connecticut #47611 · California #C54601

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1588654412. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
299
Distinct HCPCS
5
Medicare allowed
$42,260
HCPCS Description Services Patients Avg allowed
99285 Emergency department visit with high level of medical decision making 110 108 $185
99284 Emergency department visit with moderate level of medical decision making 81 79 $126
93308 Ultrasound of heart, follow-up 44 44 $26
99291 Critical care, first 30-74 minutes 39 39 $222
99283 Emergency department visit with low level of medical decision making 25 25 $76

In context: peer comparison

Among 76 peers in New Haven Emergency Medicine Physician, average services per provider: 72. This provider delivers 4.2× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Reinier van Tonder's medical specialty?
Dr. Reinier van Tonder practices Emergency Medicine Physician in New Haven, CT.
Where does Dr. Reinier van Tonder practice?
Dr. Reinier van Tonder practices at 333 Cedar St, New Haven, CT 065103206. Office phone: 5072617284.
What is Dr. Reinier van Tonder's NPI?
Dr. Reinier van Tonder's National Provider Identifier (NPI) is 1588654412, issued by NPPES.
Does Dr. Reinier van Tonder accept Medicare assignment?
Yes. Dr. Reinier van Tonder accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Reinier van Tonder commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Ultrasound of heart, follow-up (HCPCS 93308). Source: CMS Medicare Physician & Other Practitioners file.