Doctor profile · Federal record
Dr. Timothy Gruppen, PSYD
Clinical Psychologist · Grand Rapids, MI
- NPI 1689912081
- Accepts Medicare
- 15 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
655 Kenmoor Ave Se Ste 303
Grand Rapids, MI 495468622
(616) 259-5365
Credentials & registration
- NPI registered
- January 2013 — 13 yrs on file
- Profile last updated
- August 29, 2023
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 103TC0700X — NUCC code
- State license (1)
- Michigan #6301015411
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689912081. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
61
Distinct HCPCS
2
Medicare allowed
$6,700
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90791 |
Psychiatric diagnostic evaluation | 37 | 37 | $144 | |
90832 |
Psychotherapy, 30 minutes | 24 | 17 | $58 |
In context: peer comparison
Among 8 peers in Grand Rapids Clinical Psychologist, average services per provider: 82. This provider delivers 0.7× the peer median.Frequently asked questions
What is Dr. Timothy Gruppen's medical specialty?
Dr. Timothy Gruppen practices Clinical Psychologist in Grand Rapids, MI.
Where does Dr. Timothy Gruppen practice?
Dr. Timothy Gruppen practices at 655 Kenmoor Ave Se Ste 303, Grand Rapids, MI 495468622. Office phone: 6162595365.
What is Dr. Timothy Gruppen's NPI?
Dr. Timothy Gruppen's National Provider Identifier (NPI) is 1689912081, issued by NPPES.
Does Dr. Timothy Gruppen accept Medicare assignment?
Yes. Dr. Timothy Gruppen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Timothy Gruppen commonly perform?
Top Medicare-reported procedures in 2023: Psychiatric diagnostic evaluation (HCPCS 90791); Psychotherapy (HCPCS 90832). Source: CMS Medicare Physician & Other Practitioners file.