Doctor profile · Federal record
Dr. Mary Crois, PSY.D.
Psychologist · Glen Ellyn, IL
- NPI 1659453579
- 20 yrs on file
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
331 Phillips Ave
Glen Ellyn, IL 601374938
(630) 881-3894
fax (630) 469-4945
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- July 8, 2007
- Specialty taxonomy
- 103T00000X — NUCC code
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1659453579. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
165
Distinct HCPCS
1
Medicare allowed
$24,529
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90837 |
Psychotherapy, 1 hour | 165 | 23 | $149 |
In context: peer comparison
Among 1 peers in Glen Ellyn Psychologist, average services per provider: 165. This provider delivers 1.0× the peer median.Frequently asked questions
What is Dr. Mary Crois's medical specialty?
Dr. Mary Crois practices Psychologist in Glen Ellyn, IL.
Where does Dr. Mary Crois practice?
Dr. Mary Crois practices at 331 Phillips Ave, Glen Ellyn, IL 601374938. Office phone: 6308813894.
What is Dr. Mary Crois's NPI?
Dr. Mary Crois's National Provider Identifier (NPI) is 1659453579, issued by NPPES.
What procedures does Dr. Mary Crois commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.