NPI age
12 years
Enumerated 2014-02-26
● Active
Type 1 · Individual
DR. Elizabeth Marnix, PSYD, HSPP
Marnix is 1 of 359 psychologist providers in Austin and 1 of 3401 in Texas.
Primary specialty
Psychologist
Plus 2 subspecialties
Licensed in
TX, IL, IN
3 states
Status
Active
No deactivations on record
Last NPPES update
2023-03-01
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 3401 active psychologist providers in Texas.
NPI age
12 years
↓ 3 yr below median (15 yr)
State licenses
3 states
Top 92% — 7% of peers are multi-state
Subspecialties
0
26% of peers hold subspecialties
NPI lifetime · 2014 → 2026
2014-02Enumerated in NPPES
2014
2026
Where they practice
Practice location
1500 W 38th St Ste 32
Austin, TX 787316318
Mailing address
30 N Michigan Ave Ste 515
Chicago, IL 606023830
Additional practice locations
1 secondary location on file with NPPES.
Location 2
30 N Michigan Ave Ste 515
Chicago, IL 606023830
Specialties
-
Psychologist PrimaryA psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (IN) | PENDING |
Multi-state credentialing: Licensed in 3 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 5 other active providers share this practice address in NPPES.
Recently enumerated nearby: 10 new psychologist providers have been added in Austin in the last 180 days.
See all →
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.