Doctor profile · Federal record
Dr. Charity Grannis, M.D.
Ophthalmology Physician (CMS: Ophthalmology) · Pediatric Ophthalmology and Strabismus Specialist Physician Physician · Houston, TX
- NPI 1629380977
- Accepts Medicare
- MIPS 93.4 / 100 · 2023
- 16 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2855 Gramercy St
Houston, TX 770251756
(713) 668-6828 - Mailing address
-
2855 Gramercy St # 400
Houston, TX 770251697
Credentials & registration
- NPI registered
- July 2010 — 16 yrs on file
- Profile last updated
- March 19, 2021
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207W00000X — NUCC code
- State license (1)
- Texas #Q0056
- Medicaid
- TX #350244502
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1629380977. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
536
Distinct HCPCS
7
Medicare allowed
$50,309
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92060 |
Exam to measure eye deviation and range of motion | 238 | 139 | $63 | |
92012 |
Established patient problem focused exam of visual system | 154 | 100 | $88 | |
92014 |
Established patient complete exam of visual system | 86 | 80 | $124 | |
92004 |
New patient complete exam of visual system | 19 | 19 | $148 | |
92136 |
Measurement of corneal curvature and depth of eye | 15 | 11 | $46 | |
67311 |
Realignment of horizontal eye muscle | 13 | 13 | $517 | |
92002 |
New patient problem focused exam of visual system | 11 | 11 | $85 |
In context: peer comparison
Among 85 peers in Houston Ophthalmology Physician, average services per provider: 248. This provider delivers 2.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
210
Patients
103
Total drug cost
$13,207
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 77 | 15 | $1,339 |
| Neomycin-Polymyxin-Dexameth (Neomycin/Polymyxin B/Dexametha) | Brand | 52 | 41 | $685 |
| Prednisolone Acetate | Generic | 30 | 20 | $1,044 |
| Ketorolac Tromethamine | Generic | 22 | 15 | $533 |
| Ofloxacin | Generic | 15 | 12 | $291 |
| Restasis (Cyclosporine) | Brand | 14 | 0 | $9,315 |
Frequently asked questions
What is Dr. Charity Grannis's medical specialty?
Dr. Charity Grannis practices Ophthalmology Physician in Houston, TX.
Where does Dr. Charity Grannis practice?
Dr. Charity Grannis practices at 2855 Gramercy St, Houston, TX 770251756. Office phone: 7136686828.
What is Dr. Charity Grannis's NPI?
Dr. Charity Grannis's National Provider Identifier (NPI) is 1629380977, issued by NPPES.
Does Dr. Charity Grannis accept Medicare assignment?
Yes. Dr. Charity Grannis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Charity Grannis commonly perform?
Top Medicare-reported procedures in 2023: Exam to measure eye deviation and range of motion (HCPCS 92060); Established patient problem focused exam of visual system (HCPCS 92012); Established patient complete exam of visual system (HCPCS 92014). Source: CMS Medicare Physician & Other Practitioners file.