NPI age
14 years
Enumerated 2011-06-13
● Active
Type 1 · Individual
Rhiannon Main, D.O.
Main is 1 of 9 emergency medicine providers in Houston and 1 of 73 in Texas.
Primary specialty
Emergency Medicine
Plus 2 subspecialties
Licensed in
TX, AZ
2 states
Status
Active
No deactivations on record
Last NPPES update
2023-02-07
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 73 active emergency medicine providers in Texas.
NPI age
14 years
↓ 5 yr below median (19 yr)
State licenses
2 states
Top 72% — 27% of peers are multi-state
Subspecialties
2
In the 54% of peers with subspecialties
NPI lifetime · 2011 → 2026
2011-06Enumerated in NPPES
2011
2026
Where they practice
Practice location
6701 Fannin St
Houston, TX 770302608
Mailing address
6701 Fannin St
Houston, TX 770302608
Additional practice locations
1 secondary location on file with NPPES.
Location 2
1111 E McDowell Rd
Phoenix, AZ 850062612
Specialties
-
Emergency Medicine PrimaryPediatric Emergency Medicine is a clinical subspecialty that focuses on the care of the acutely ill or injured child in the setting of an emergency department.
-
Emergency MedicineAn emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department....
-
Student in an Organized Health Care Education/Training ProgramAn individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
Practice context
Part of a multi-provider practice. 846 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.
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