Physician Profile
Unclaimed ProfileAbout LARSON
Based in Greenfield, WI, Mark Daniel Larson, MD is listed in the NPI registry under ophthalmology. Mark graduated from Sanford School of Medicine of University of South Dakota in 2019. Mark is also listed as specialising in ophthalmology — glaucoma.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What kind of doctor is Dr. Larson?
Dr. Larson is an ophthalmology in Greenfield, WI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
What is Dr. Larson's address?
Dr. Larson is listed at 4600 W LOOMIS RD STE 310, Greenfield, WI 53220. 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. Larson?
The number on file is (414) 281-0424. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Larson's NPI number?
Dr. Larson's National Provider Identifier is 1831651868. 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 Dr. Larson train?
Dr. Larson attended Sanford School of Medicine of University of South Dakota, graduating in 2019. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Larson been practising?
Dr. Larson has 7 years experience. Calculated from a graduation year of 2019, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Larson perform?
According to Medicare billing data, Dr. Larson performs procedures including removal of cataract with insertion of prosthetic lens; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as established patient complete exam of visual system and measurement of corneal curvature and depth of eye, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Larson confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Larson. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (414) 281-0424
- Email not available
Practice Locations
4600 W LOOMIS RD STE 310
Greenfield, WI 53220
Procedures Most Often Billed to Medicare
371 services · 341 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
19 |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
23 |
| Established patient complete exam of visual system | Treatment | 92014 |
39 |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
38 |
| Exam of visual field with extended testing | Treatment | 92083 |
31 |
| Imaging of optic nerve | Treatment | 92133 |
27 |
| Exam of the internal drainage system of eye | Treatment | 92020 |
26 |
| Imaging of retina | Treatment | 92134 |
22 |
| New patient complete exam of visual system | Treatment | 92004 |
21 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
61 |
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.
Related specialists at this location 5
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.
Other ophthalmology specialists in Greenfield 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Sanford School of Medicine of University of South Dakota 8
Other providers in the same specialty who trained at the same institution.
Class of 2019 at Sanford School of Medicine of University of South Dakota 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 WI who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.