Physician Profile
Charity H. Grannis, M.D.
Unclaimed ProfileAbout Dr. Grannis
Based in Houston, TX, Charity H. Grannis, M.D. is listed in the NPI registry under ophthalmology. Charity graduated from Baylor College of Medicine in 2010. Charity is also listed as specializing in ophthalmology — pediatric. Medicare claims data shows Charity provided 441 services to 329 patients. The services billed most often include exam to measure eye deviation and range of motion, established patient problem focused exam of visual system, and established patient complete exam of visual system.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (713) 668-6828
- Email not available
Practice Locations
2855 GRAMERCY ST
Houston, TX 77025
Conditions Commonly Evaluated or Treated
Within Ophthalmology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Cornea and external eye
Eyelid and tear drainage
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
Eye injuries
Inflammation, neurologic, and orbit
Retina & vitreous
Procedures & services
Most searched procedures
Examination and imaging
Cataract and lens
Corneal procedures
Eye diagnostics
Eye injuries
Eyelid surgery
Eyelid, tear duct, and muscle
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
Laser procedures
Laser vision correction
Refractive surgery
Tear duct & Orbit
Procedures Most Often Billed to Medicare
441 services · 329 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
19 | Less often than most peers in Ophthalmology |
| Exam to measure eye deviation and range of motion | Treatment | 92060 |
196 | More than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
94 | As often as other peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
74 | Less often than most peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
17 | Less often than most peers in Ophthalmology |
| New patient problem focused exam of visual system | Treatment | 92002 |
14 | Less often than most peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
12 | Less often than most peers in Ophthalmology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
15 | Less often than most peers in Ophthalmology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other eye doctors at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 30 related providers in 4 groups
Other eye doctors in Houston 8
Same specialty, same city.
Trained at Baylor College of Medicine 6
Other providers in the same specialty who trained at the same institution.
Class of 2010 at Baylor College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in TX who bill this service to Medicare most often.
Common questions
What does Charity H. Grannis specialize in?
Charity H. Grannis is an eye doctor in Houston, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where is Charity H. Grannis located?
Charity H. Grannis is listed at 2855 Gramercy St, Houston, TX 77025. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Charity H. Grannis's phone number?
The number on file is (713) 668-6828. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Charity H. Grannis?
Charity H. Grannis's National Provider Identifier is 1629380977. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Charity H. Grannis train?
Charity H. Grannis attended Baylor College of Medicine, graduating in 2010. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Charity H. Grannis have?
Charity H. Grannis has 16 years experience. Calculated from a graduation year of 2010, reported in the CMS National Downloadable File.
CMS public data
What does Charity H. Grannis do most often?
According to Medicare billing data, Charity H. Grannis performs procedures including removal of cataract with insertion of prosthetic lens; provides treatments such as exam to measure eye deviation and range of motion and established patient problem focused exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Charity H. Grannis's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Charity H. Grannis. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.