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Edit this profileAt a glance
- 22924 Crenshaw Blvd, Torrance, CA 90505
About Dr. Maher
Based in Torrance, CA, John F. Maher, M.D. is listed in the NPI registry under ophthalmology. John graduated from Loyola University of Chicago, Stritch School of Medicine in 1981. Medicare claims data shows John provided 6,399 services to 5,167 patients. The services billed most often include established patient complete exam of visual system, photography of the retina, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. NPI 1265561211 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
- (424) 328-0091
- Email not available
Practice Locations
22924 CRENSHAW BLVD
Torrance, CA 90505
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
6,399 services · 5,167 patients · 23 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
262 | More often than most peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
173 | More than most peers in Ophthalmology |
| Laser repair to improve eye fluid flow | Procedure | 65855 |
45 | More often than most peers in Ophthalmology |
| Removal of chronic growth of eyelid | Procedure | 67800 |
24 | More often than most peers in Ophthalmology |
| Complex removal of cataract with insertion of prosthetic lens | Procedure | 66982 |
23 | As often as other peers in Ophthalmology |
| Creation of eye fluid drainage tract for treatment of glaucoma | Procedure | 66170 |
17 | As often as other peers in Ophthalmology |
| Injection into conjunctiva | Procedure | 68200 |
11 | Less often than most peers in Ophthalmology |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
117 | More than most peers in Ophthalmology |
| 1d and 2d ultrasound scan of eye tissue and structures | Imaging | 76510 |
30 | As often as other peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
1,911 | More 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.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other eye doctors in Torrance 8
Same specialty, same city.
Trained at Loyola University of Chicago, Stritch School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1981 at Loyola University of Chicago, Stritch School 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 CA who bill this service to Medicare most often.
Common questions
What is John F. Maher's specialty?
John F. Maher is an eye doctor in Torrance, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where can I find John F. Maher?
John F. Maher is listed at 22924 Crenshaw Blvd, Torrance, CA 90505. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact John F. Maher?
The number on file is (424) 328-0091. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for John F. Maher?
John F. Maher's National Provider Identifier is 1265561211. 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
What is John F. Maher's education?
John F. Maher attended Loyola University of Chicago, Stritch School of Medicine, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How much experience does John F. Maher have?
John F. Maher has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What is John F. Maher known for?
According to Medicare billing data, John F. Maher performs procedures including removal of cataract with insertion of prosthetic lens, removal of recurring cataract in lens capsule using a laser and laser repair to improve eye fluid flow; reads or performs imaging such as ultrasound scan of cornea to determine thickness and 1d and 2d ultrasound scan of eye tissue and structures; provides treatments such as established patient complete exam of visual system and photography of the retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is John F. Maher's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John F. Maher. If this is you, claiming it is free.
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