Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1376545186 Individual Practitioner Female Practitioner

Dr. Marsha Hillary Onan , MD

Ophthalmology • Austin, TX

Professional Overview & Biography Verified Profile Summary

Dr. Marsha Onan, MD is a registered healthcare professional specializing in Ophthalmology in Austin, TX. Practice services are available at 11111 RESEARCH BLVD under active NPI credentials.

Practice Location & Contact Primary Location

Practice Address

11111 Research Blvd
Suite 220

Austin, TX 787595264

Telephone 5123246755
Fax 5123246753
Associated Practice Facility / Clinic
🏢 Premier Eye Care, Pa Facility NPI 1760558555

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Austin, TX

Active Practitioner
Practitioner Clinical Experience
Active
City Avg: 24.0 Yrs
State Avg: 26.2 Yrs
Regional Practice Density
116 Specialists

Practicing in Austin, TX (1616 Statewide)

Telehealth Adoption Rate
0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
67.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Medical Specialties & State Licenses

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License TX K3623

An 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 disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
117115905 (TX)

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

5 Associated Practitioners
NPI 1245437524

Doctor of Medicine (M.D.)

NPI 1538111968

Doctor of Medicine (M.D.)

Dr. Saraniya Sathiamoorthi , MD

Ophthalmology - Pediatric Ophthalmology and Strabismus Specialist

NPI 1598261471

Doctor of Medicine (M.D.)

Dr. Lan Hoang , MD

Ophthalmology

NPI 1720223449

Doctor of Medicine (M.D.)

Dr. Megan Geloneck , MD

Ophthalmology - Pediatric Ophthalmology and Strabismus Specialist

NPI 1902126105

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events
NPI Profile Active August 16, 2012

NPI status registered as active in NPPES database

📍
Updated Practice Location August 16, 2012

Registered at 11111 RESEARCH BLVD, SUITE 220, AUSTIN, TX 787595264 (Tel: 5123246755)

📍
Updated Business Mailing Address August 16, 2012

Registered at 1600 W 38TH ST, SUITE 320, AUSTIN, TX 787316400 (Tel: 5123243310)

👤
Provider Name / Credentials Updated August 16, 2012

Recorded as MARSHA ONAN, M.D.

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 16, 2012

Ophthalmology (License #K3623 in TX)

🟢
Initial NPI Registration & Enumeration August 11, 2005

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1376545186
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 11, 2005
Last Update: August 16, 2012
Sole Proprietor: No

Mailing Address

1600 W 38th St, Suite 320

Austin, TX 787316400

Phone: 5123243310

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).
⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.