Doctor profile · Federal record
Dr. Robert Wierenga, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Kalamazoo, MI
- NPI 1881856888
- Accepts Medicare
- 18 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
125 S Kalamazoo Mall Ste 204
Kalamazoo, MI 490074869
(269) 343-3900 - Additional location
-
13000 E 136Th St
Fishers, IN 460379478
(317) 678-2273
fax (317) 678-1325 - Mailing address
-
250 N Shadeland Ave
Indianapolis, IN 462194959
Credentials & registration
- NPI registered
- June 2008 — 18 yrs on file
- Profile last updated
- March 11, 2021
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Michigan #4301092580
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881856888. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
312
Distinct HCPCS
4
Medicare allowed
$41,711
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 135 | 133 | $112 | |
99285 |
Emergency department visit with high level of medical decision making | 124 | 118 | $164 | |
99283 |
Emergency department visit with low level of medical decision making | 33 | 31 | $67 | |
99291 |
Critical care, first 30-74 minutes | 20 | 20 | $199 |
In context: peer comparison
Among 58 peers in this city , average services per provider: 92. This provider delivers 3.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
66
Patients
63
Total drug cost
$461
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 19 | 18 | $115 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 16 | 15 | $194 |
| Ondansetron Odt (Ondansetron) | Brand | 16 | 16 | $90 |
| Prednisone | Generic | 15 | 14 | $62 |
Frequently asked questions
What is Dr. Robert Wierenga's medical specialty?
Dr. Robert Wierenga practices Emergency Medicine Physician in Kalamazoo, MI.
Where does Dr. Robert Wierenga practice?
Dr. Robert Wierenga practices at 125 S Kalamazoo Mall Ste 204, Kalamazoo, MI 490074869. Office phone: 2693433900.
What is Dr. Robert Wierenga's NPI?
Dr. Robert Wierenga's National Provider Identifier (NPI) is 1881856888, issued by NPPES.
Does Dr. Robert Wierenga accept Medicare assignment?
Yes. Dr. Robert Wierenga accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Wierenga commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.