NPI age
20 years
Enumerated 2005-12-13
● Active
Type 1 · Individual
DR. Robert Edward Marquis, M.D., PH.D.
Marquis is 1 of 4 ophthalmology providers in Austin and 1 of 41 in Texas.
Primary specialty
Ophthalmology
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2024-01-03
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 41 active ophthalmology providers in Texas.
NPI age
20 years
↑ 11 yr above median (9 yr)
State licenses
1 state
19% of peers hold multiple states
Subspecialties
1
In the 65% of peers with subspecialties
NPI lifetime · 2005 → 2026
2005-12Enumerated in NPPES
2005
2026
Where they practice
Practice location
5717 Balcones Dr
Austin, TX 78731
Mailing address
5717 Balcones Dr
Austin, TX 787314203
Specialties
-
Ophthalmology PrimaryAn ophthalmologist who specializes in the treatment of glaucoma and other disorders related to increased intraocular pressure and optic nerve damage. This specialty involves the medical and surgical treatment of these conditions.
-
OphthalmologyAn ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual...
Practice context
Part of a multi-provider practice. 13 other active providers share this practice address in NPPES.
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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.