Physician Profile
Unclaimed ProfileAbout SUN
Based in Philadelphia, PA, William Z Sun, M.D. is listed in the NPI registry under ophthalmology. William graduated from Hahneman Medical College of the Pacific in 1976. Medicare claims data shows William provided 1,650 services to 1,330 patients.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (215) 564-4277
- Email not available
Practice Locations
2031 LOCUST ST
Philadelphia, PA 19103
Procedures Most Often Billed to Medicare
1,650 services · 1,330 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Laser repair to improve eye fluid flow | Procedure | 65855 |
47 |
| Removal of recurring cataract in lens capsule using a laser | Procedure | 66821 |
34 |
| Removal of cataract with insertion of prosthetic lens | Procedure | 66984 |
23 |
| Established patient complete exam of visual system | Treatment | 92014 |
297 |
| Exam of visual field with extended testing | Treatment | 92083 |
291 |
| Photography of the retina | Treatment | 92250 |
106 |
| Exam of the internal drainage system of eye | Treatment | 92020 |
46 |
| New patient complete exam of visual system | Treatment | 92004 |
31 |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
16 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
387 |
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 ophthalmology specialists in Philadelphia 8
Same specialty, same city.
Trained at Hahneman Medical College of the Pacific 8
Other providers in the same specialty who trained at the same institution.
More connections — 10 related providers in 2 groups
Class of 1976 at Hahneman Medical College of the Pacific 2
Providers who graduated from the same medical school in the same year.
Also performs Laser repair to improve eye fluid flow 8
Providers in PA who bill this service to Medicare most often.
Common questions
What does Dr. Sun specialize in?
Dr. Sun is an ophthalmology in Philadelphia, PA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Where is Dr. Sun located?
Dr. Sun is listed at 2031 LOCUST ST, Philadelphia, PA 19103. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Sun's phone number?
The number on file is (215) 564-4277. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Sun?
Dr. Sun's National Provider Identifier is 1043247943. 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. Sun go to medical school?
Dr. Sun attended Hahneman Medical College of the Pacific, graduating in 1976. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Sun have?
Dr. Sun has 50 years experience. Calculated from a graduation year of 1976, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Sun do most often?
According to Medicare billing data, Dr. Sun performs procedures including laser repair to improve eye fluid flow, removal of recurring cataract in lens capsule using a laser and removal of cataract with insertion of prosthetic lens; provides treatments such as established patient complete exam of visual system 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. Sun's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sun. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.