Doctor profile · Federal record
Dr. Nancy Mattax, PH.D.
Clinical Psychologist · Springfield, MO
- NPI 1154657385
- Accepts Medicare
- 37 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2030 S National Ave, Suite 105
Springfield, MO 658042222
(417) 820-9590
fax (417) 820-9592 - Mailing address
-
Po Box 2580
Springfield, MO 658012580
Credentials & registration
- NPI registered
- October 2009 — 17 yrs on file
- Profile last updated
- August 18, 2010
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 103TC0700X — NUCC code
- State license (1)
- Missouri #01483
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1154657385. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
203
Distinct HCPCS
1
Medicare allowed
$28,917
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90837 |
Psychotherapy, 1 hour | 203 | 13 | $142 |
In context: peer comparison
Among 8 peers in Springfield Clinical Psychologist, average services per provider: 94. This provider delivers 2.2× the peer median.Frequently asked questions
What is Dr. Nancy Mattax's medical specialty?
Dr. Nancy Mattax practices Clinical Psychologist in Springfield, MO.
Where does Dr. Nancy Mattax practice?
Dr. Nancy Mattax practices at 2030 S National Ave, Springfield, MO 658042222. Office phone: 4178209590.
What is Dr. Nancy Mattax's NPI?
Dr. Nancy Mattax's National Provider Identifier (NPI) is 1154657385, issued by NPPES.
Does Dr. Nancy Mattax accept Medicare assignment?
Yes. Dr. Nancy Mattax accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nancy Mattax commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90837). Source: CMS Medicare Physician & Other Practitioners file.