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Edit this profileAt a glance
- 811 Ridgewood Avenue, Venice, FL 34285
About Dr. Johnson
Mark A. Johnson, MD practices ophthalmology in Venice, FL. According to Medicare claims data, Mark cared for 3,817 Medicare patients across 4,253 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, photography of the retina, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1205803418.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (941) 792-2020
- Email not available
Practice Locations
811 RIDGEWOOD AVENUE
Venice, FL 34285
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
4,253 services · 3,817 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
115 | As often as other peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
110 | More often than most peers in Ophthalmology |
| Incision and drainage of abscess of eyelid | Procedure | 67700 |
22 | As often as other peers in Ophthalmology |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
112 | More than most peers in Ophthalmology |
| Photography of the retina | Treatment | 92250 |
740 | More than most peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
387 | More often than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
305 | More often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
275 | More often than most peers in Ophthalmology |
| Exam of the internal drainage system of eye | Treatment | 92020 |
197 | More often than most peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
115 | 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.
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.
Other eye doctors in Venice 8
Same specialty, same city.
Also performs Removal of cataract with insertion of prosthetic lens 8
Providers in FL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Johnson?
Dr. Johnson is an eye doctor in Venice, FL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
What is Dr. Johnson's address?
Dr. Johnson is listed at 811 Ridgewood Avenue, Venice, FL 34285. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Johnson?
The number on file is (941) 792-2020. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Johnson's NPI number?
Dr. Johnson's National Provider Identifier is 1205803418. 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
How long has Dr. Johnson been practicing?
Dr. Johnson has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What procedures does Dr. Johnson perform?
According to Medicare billing data, Dr. Johnson performs procedures including removal of cataract with insertion of prosthetic lens, removal of recurring cataract in lens capsule using a laser and incision and drainage of abscess of eyelid; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as photography of the retina and imaging of retina, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Johnson confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Johnson. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.