Physician Profile
Clarke S. Nelson, M.D., PhD
Unclaimed ProfileAbout Dr. Nelson
Clarke S. Nelson, M.D., PhD is a healthcare provider in Baltimore, MD specializing in ophthalmology. Clarke trained at University of Connecticut School of Medicine, graduating in 2017. Medicare claims data shows Clarke provided 1,207 services to 989 patients. The services billed most often include measurement of corneal curvature and depth of eye, removal of cataract with insertion of prosthetic lens, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
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
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
- (410) 752-1677
- Email not available
Practice Locations
100 PARK AVE
Baltimore, MD 21201
345 Saint Paul St Buntin Building, 7th Floor
Baltimore, MD 21202
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
1,207 services · 989 patients · 16 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
170 | More often than most peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
17 | Less often than most peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
186 | More often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
81 | As often as other peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
69 | As often as other peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
64 | Less often than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
56 | As often as other peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
46 | As often as other peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
24 | Less often than most peers in Ophthalmology |
| Exam of the internal drainage system of eye | Treatment | 92020 |
17 | 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 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 3
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 32 related providers in 4 groups
Other eye doctors in Baltimore 8
Same specialty, same city.
Trained at University of Connecticut School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2017 at University of Connecticut 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 MD who bill this service to Medicare most often.
Common questions
What is Clarke S. Nelson, M.D.'s specialty?
Clarke S. Nelson, M.D. is an eye doctor in Baltimore, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where can I find Clarke S. Nelson, M.D.?
Clarke S. Nelson, M.D. is listed at 100 Park Ave, Baltimore, MD 21201. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Clarke S. Nelson, M.D.?
The number on file is (410) 752-1677. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Clarke S. Nelson, M.D.?
Clarke S. Nelson, M.D.'s National Provider Identifier is 1558894923. 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 Clarke S. Nelson, M.D.'s education?
Clarke S. Nelson, M.D. attended University of Connecticut School of Medicine, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Clarke S. Nelson, M.D. have?
Clarke S. Nelson, M.D. has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
What is Clarke S. Nelson, M.D. known for?
According to Medicare billing data, Clarke S. Nelson, M.D. performs procedures including removal of cataract with insertion of prosthetic lens and removal of recurring cataract in lens capsule using a laser; provides treatments such as measurement of corneal curvature and depth of eye and imaging of optic nerve, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Clarke S. Nelson, M.D.'s profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Clarke S. Nelson, M.D.. 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.