Charity GrannisM.D.
Ophthalmology·Houston, TX
Charity Grannis, M.D. is an Ophthalmology provider in Houston, TX affiliated with 3 ambulatory surgery centers in TX, as of July 2026.
- NPI1629380977
- Registered2010
- Centers3
- StateTX
- Class of2010
Case volumes, referral patterns, and payer mix live in DataLily AI Insights.
Ambulatory surgery centers
Centers whose service lines match this provider’s. Affiliations change; verify independently.
- Memorial Hermann Surgery Center Texas Medical CenterHouston, TX · ENT, Gastroenterology, Ophthalmology, Orthopedics, Pain management · 30 on panelView center →
- Gramercy Surgery Center LTDHouston, TX · Ophthalmology · 30 on panelView center →
- Memorial Hermann Surgery Center Kirby LLCHouston, TX · Gastroenterology, Ophthalmology, Pain management · 30 on panelView center →
Education
Education on record as of August 2026.
Charity Grannis at a glance
- Provider
- Charity Grannis
- Credential
- M.D.
- Specialty
- Ophthalmology
- Procedures
- Ophthalmology CPT codes
- Location
- Houston, TX
- Medical school
- Baylor College of Medicine
- Graduated
- 2010
- NPI registered
- 2010
- NPI
- 1629380977
- Snapshot
- July 2026
Identity, specialty, and affiliations change over time. This is not an endorsement, and not clinical, billing, or legal advice. Providers may request corrections at founders@datalilyai.com. Read the DataLily AI data methodology.
Questions
Where does Charity Grannis practice?
Charity Grannis, M.D. is based in Houston, TX and is affiliated with 3 ambulatory surgery centers: Memorial Hermann Surgery Center Texas Medical Center in Houston, TX, Gramercy Surgery Center LTD in Houston, TX, and Memorial Hermann Surgery Center Kirby LLC in Houston, TX. Affiliations reflect the current DataLily AI snapshot (July 2026) and can change.
What is Charity Grannis's NPI number?
Charity Grannis's National Provider Identifier (NPI) is 1629380977, registered in 2010. Specialty on record: Ophthalmology; credential M.D.
Where did Charity Grannis go to medical school?
Charity Grannis, M.D. attended Baylor College of Medicine, graduating in 2010.
How many Ophthalmology providers in Texas work at ambulatory surgery centers?
519 Ophthalmology surgeons and proceduralists in Texas are affiliated with ambulatory surgery centers in DataLily AI's current snapshot, Charity Grannis among them. The Texas Ophthalmology directory lists each one by city with credential, NPI, and center affiliations.
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