Mark E Devries, PhD is a clinical psychologist based in Grand Rapids, MI. Mark is also listed as specialising in psychologist.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Dr. Devries is a clinical psychologist in Grand Rapids, MI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “CLINICAL PSYCHOLOGIST”.
NPI registry
Dr. Devries is listed at 300 68TH ST SE, Grand Rapids, MI 49548. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (616) 455-5000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Devries's National Provider Identifier is 1265476220. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Devries attended Other, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
Dr. Devries has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Devries provides treatments such as evaluation of neuropsychological test, each additional hour and psychiatric diagnostic evaluation. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Devries. If this is you, claiming it is free.
Guide.md
Source: NPPES NPI Registry
300 68TH ST SE
Grand Rapids, MI 49548
74 services · 43 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Evaluation of neuropsychological test, each additional hour | Treatment | 96133 |
44 |
| Psychiatric diagnostic evaluation | Treatment | 90791 |
17 |
| Evaluation of neuropsychological test, first hour | Treatment | 96132 |
13 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Same specialty, same street address — most likely the same department or group.
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Same specialty, same city.
Other providers in the same specialty who trained at the same institution.
Providers who graduated from the same medical school in the same year.
Providers in MI who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.