Physician Profile
Katherine Duncan, M.D.
Unclaimed ProfileAbout Dr. Duncan
Based in Towson, MD, Katherine Duncan, M.D. is listed in the NPI registry under ophthalmology. Katherine graduated from University of Maryland School of Medicine in 2012. Katherine is also listed as specializing in student in an organized health care education program. According to Medicare claims data, Katherine cared for 2,105 Medicare patients across 2,365 services. The services billed most often include established patient complete exam of visual system, established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, 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 — free, and no identity document with a practice or institutional email.
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) 828-5558
- Email not available
Practice Locations
8625 PLEASANT PLAINS RD
Towson, MD 21286
6569 N Charles St Ste 505
Baltimore, MD 21204
203 Lothrop St 7th Floor, EEINS
Pittsburgh, PA 15213
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
- Cataracts
- Diabetic retinopathy
- Dry eye
- Glaucoma
- Macular degeneration
Cornea and external eye
- Blepharitis
- Corneal abrasion
- Corneal ulcer
- Keratoconus
- Pink eye
- Pterygium
Eyelid and tear drainage
- Blocked tear duct
- Chalazion
- Drooping eyelid
Refractive and focusing
- Astigmatism
- Eye misalignment (strabismus)
- Farsightedness
- Lazy eye (amblyopia)
- Nearsightedness
- Presbyopia
Retina and vitreous
- Epiretinal membrane
- Retinal detachment
Eye injuries
- Foreign Object in Eye
Inflammation, neurologic, and orbit
- Thyroid eye disease
- Uveitis
Retina & vitreous
- Eye Floaters and Flashes
Procedures & services
Most searched procedures
- Cataract surgery
- Eye exam
- LASIK
- Retina surgery
Examination and imaging
- Corneal topography
- Fluorescein angiography
Cataract and lens
- Intraocular lens exchange
- YAG laser capsulotomy
Corneal procedures
- Amniotic Membrane Eye Graft
Eye diagnostics
- Optical Coherence Tomography Scan
Eye injuries
- Eye Scratch Laceration Repair
- Foreign Object Removal from Eye
Eyelid surgery
- Stye Removal
Eyelid, tear duct, and muscle
- Drooping-eyelid repair
- Entropion repair
- Eye-muscle surgery
- Eyelid surgery
- Tear-duct bypass surgery
Glaucoma
- Glaucoma drainage-device implantation
- Laser peripheral iridotomy
- Minimally invasive glaucoma surgery
- Selective laser trabeculoplasty
Laser eye surgery
- Laser Floater Removal
Laser procedures
- Laser Treatment for Retinal Tear
Laser vision correction
- SMILE Eye Surgery
Refractive surgery
- Clear Lens Exchange
- Implantable Contact Lenses
Tear duct & Orbit
- Orbital Decompression Surgery
- Tear Duct Plugs
Procedures Most Often Billed to Medicare
2,365 services · 2,105 patients · 15 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
178 | More often than most peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
20 | Less often than most peers in Ophthalmology |
| Removal of excessive skin and fat of upper eyelid | Procedure | 15823 |
16 | Less often than most peers in Ophthalmology |
| Removal of noncancer skin growth of face, ears, eyelids, nose, lips, or mouth, 0.5 cm or less | Procedure | 11440 |
14 | Less often than most peers in Ophthalmology |
| Ultrasound scan to determine eye length and lens power | Imaging | 76519 |
138 | More often than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
764 | More often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
209 | More often than most peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
128 | As often as other peers in Ophthalmology |
| New patient complete exam of visual system | Treatment | 92004 |
106 | More often than most peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
89 | 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 3
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 — 31 related providers in 4 groups
Other eye doctors in Towson 7
Same specialty, same city.
Trained at University of Maryland School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2012 at University of Maryland 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 does Katherine Duncan specialize in?
Katherine Duncan is an eye doctor in Towson, MD. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where is Katherine Duncan located?
Katherine Duncan is listed at 8625 Pleasant Plains Rd, Towson, MD 21286. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Katherine Duncan's phone number?
The number on file is (410) 828-5558. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Katherine Duncan's NPI number?
Katherine Duncan's National Provider Identifier is 1407113566. 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 Katherine Duncan train?
Katherine Duncan attended University of Maryland School of Medicine, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How long has Katherine Duncan been practicing?
Katherine Duncan has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What does Katherine Duncan do most often?
According to Medicare billing data, Katherine Duncan performs procedures including removal of cataract with insertion of prosthetic lens, removal of recurring cataract in lens capsule using a laser and removal of excessive skin and fat of upper eyelid; reads or performs imaging such as ultrasound scan to determine eye length and lens power; provides treatments such as established patient complete exam of visual system 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
Has Katherine Duncan confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Katherine Duncan. 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.