Physician Profile
Mostafa Mohamed EZZAT HAMZA A Mazen, MD
Unclaimed ProfileAbout Dr. Mazen
Mostafa Mohamed EZZAT HAMZA A Mazen, MD is a healthcare provider in Duluth, MN specializing in ophthalmology. Medicare claims data shows Mostafa Mohamed provided 695 services to 554 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and imaging of optic nerve. This provider record is associated with NPI 1497284731.
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
- (218) 786-8364
- Email not available
Practice Locations
400 E 3RD ST
Duluth, MN 55805
3513 Harry S Truman Blvd
Saint Charles, MO 63301
12692 Lamplighter Square Shpg Ctr
Saint Louis, MO 63128
12990 Manchester Rd Ste 201
Des Peres, MO 63131
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
695 services · 554 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Laser repair to improve eye fluid flow | Procedure | 65855 |
29 | As often as other peers in Ophthalmology |
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
21 | Less often than most peers in Ophthalmology |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
16 | Less often than most peers in Ophthalmology |
| Ultrasound scan of cornea to determine thickness | Imaging | 76514 |
16 | Less often than most peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
78 | As often as other peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
68 | As often as other peers in Ophthalmology |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
24 | Less often than most peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
16 | Less often than most peers in Ophthalmology |
| Exam of the internal drainage system of eye | Treatment | 92020 |
12 | Less often than most peers in Ophthalmology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
217 | More 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.
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 Duluth 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2007 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Laser repair to improve eye fluid flow 8
Providers in MN who bill this service to Medicare most often.
Common questions
What does Dr. Mazen specialize in?
Dr. Mazen is an eye doctor in Duluth, MN. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where is Dr. Mazen located?
Dr. Mazen is listed at 400 E 3Rd St, Duluth, MN 55805. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Mazen's phone number?
The number on file is (218) 786-8364. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Mazen?
Dr. Mazen's National Provider Identifier is 1497284731. 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. Mazen go to medical school?
Dr. Mazen attended Other, graduating in 2007. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Mazen have?
Dr. Mazen has 19 years experience. Calculated from a graduation year of 2007, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Mazen do most often?
According to Medicare billing data, Dr. Mazen performs procedures including laser repair to improve eye fluid flow, removal of cataract with insertion of prosthetic lens and removal of recurring cataract in lens capsule using a laser; reads or performs imaging such as ultrasound scan of cornea to determine thickness; provides treatments such as imaging of optic nerve and exam of visual field with extended testing, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Mazen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mazen. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.