Physician Profile
Duane Y. Nii, M.D.
Unclaimed ProfileAbout Dr. Nii
Duane Y. Nii, M.D. practices ophthalmology in Fresno, CA. Duane is a 1981 graduate of University of Southern California Keck School of Medicine. According to Medicare claims data, Duane cared for 787 Medicare patients across 990 services. The services billed most often include established patient problem focused exam of visual system, established patient complete exam of visual system, and established patient office or other outpatient visit with low level od decision making, if using time, 20 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
- (559) 432-2111
- Email not available
Practice Locations
1648 E HERNDON AVE #101
Fresno, CA 93720
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
990 services · 787 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
17 | Less often than most peers in Ophthalmology |
| Established patient problem focused exam of visual system | Treatment | 92012 |
260 | More often than most peers in Ophthalmology |
| Established patient complete exam of visual system | Treatment | 92014 |
191 | As often as other peers in Ophthalmology |
| Exam of visual field with extended testing | Treatment | 92083 |
85 | As often as other peers in Ophthalmology |
| Imaging of optic nerve | Treatment | 92133 |
80 | As often as other peers in Ophthalmology |
| Photography of the retina | Treatment | 92250 |
71 | As often as other peers in Ophthalmology |
| Imaging of retina | Treatment | 92134 |
51 | 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 |
89 | As often as other peers in Ophthalmology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
53 | As often as other peers in Ophthalmology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
49 | 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.
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 Fresno 8
Same specialty, same city.
Trained at University of Southern California Keck School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1981 at University of Southern California Keck 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 CA who bill this service to Medicare most often.
Common questions
What does Duane Y. Nii specialize in?
Duane Y. Nii is an eye doctor in Fresno, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where is Duane Y. Nii located?
Duane Y. Nii is listed at 1648 E Herndon Ave #101, Fresno, CA 93720. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Duane Y. Nii's phone number?
The number on file is (559) 432-2111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Duane Y. Nii's NPI number?
Duane Y. Nii's National Provider Identifier is 1346463460. 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 Duane Y. Nii train?
Duane Y. Nii attended University of Southern California Keck School of Medicine, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How long has Duane Y. Nii been practicing?
Duane Y. Nii has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What does Duane Y. Nii do most often?
According to Medicare billing data, Duane Y. Nii performs procedures including removal of cataract with insertion of prosthetic lens; provides treatments such as established patient problem focused exam of visual system and established patient complete exam of visual system, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Duane Y. Nii confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Duane Y. Nii. 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.