Are you Marshall B. Hamill, M.D.? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 6550 Fannin St, Suite 1501, Houston, TX 77030
About Dr. Hamill
Based in Houston, TX, Marshall B. Hamill, M.D. is listed in the NPI registry under ophthalmology. Marshall graduated from Baylor College of Medicine in 1979. According to Medicare claims data, Marshall cared for 698 Medicare patients across 886 services. The services billed most often include established patient complete exam of visual system, established patient problem focused exam of visual system, and measurement of corneal curvature and depth of eye. NPI 1972592384 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
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) 798-6100
- Email not available
Practice Locations
6550 FANNIN ST SUITE 1501
Houston, TX 77030
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
886 services · 698 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
76 | As often as other peers in Ophthalmology |
| Transplantation of outer layer of corneal tissue | Procedure | 65756 |
28 | More often than most peers in Ophthalmology |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
19 | As often as other peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
19 | Less often than most peers in Ophthalmology |
| 2d ultrasound scan of eye tissue and structures | Imaging | 76512 |
13 | Less often than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
266 | As often as other peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
228 | More often than most peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
144 | As often as other peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
29 | Less often than most peers in Ophthalmology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
64 | As often as other 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 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
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 — 29 related providers in 4 groups
Other eye doctors in Houston 7
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 1979 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 kind of doctor is Marshall B. Hamill?
Marshall B. Hamill 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
What is Marshall B. Hamill's address?
Marshall B. Hamill is listed at 6550 Fannin St Suite 1501, Houston, TX 77030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Marshall B. Hamill?
The number on file is (713) 798-6100. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Marshall B. Hamill's NPI number?
Marshall B. Hamill's National Provider Identifier is 1972592384. 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 Marshall B. Hamill train?
Marshall B. Hamill attended Baylor College of Medicine, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How long has Marshall B. Hamill been practicing?
Marshall B. Hamill has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What procedures does Marshall B. Hamill perform?
According to Medicare billing data, Marshall B. Hamill performs procedures including removal of cataract with insertion of prosthetic lens, transplantation of outer layer of corneal tissue and complex removal of cataract with insertion of prosthetic lens; reads or performs imaging such as 2d ultrasound scan of eye tissue and structures; provides treatments such as established patient complete exam of visual system 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
Has Marshall B. Hamill confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Marshall B. Hamill. If this is you, claiming it is free.
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