Physician Profile
Timothy T. Xu, MD
Unclaimed ProfileAbout Dr. Xu
Timothy T. Xu, MD is a healthcare provider in Philadelphia, PA specializing in ophthalmology. Timothy trained at Mayo Medical School, graduating in 2021. Medicare claims data shows Timothy provided 180 services to 167 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, imaging of retina, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 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
- (800) 331-6634
- Email not available
Practice Locations
840 WALNUT ST STE 1020
Philadelphia, PA 19107
200 1st St SW
Rochester, MN 55905
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
180 services · 167 patients · 9 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Imaging of retina | Treatment | 92134 |
26 |
| Imaging of optic nerve | Treatment | 92133 |
17 |
| Measurement of corneal curvature and depth of eye | Treatment | 92136 |
15 |
| Exam of visual field with extended testing | Treatment | 92083 |
15 |
| Ct scan of cornea | Treatment | 92025 |
11 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
48 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
25 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
12 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
11 |
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 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
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 — 32 related providers in 4 groups
Other eye doctors in Philadelphia 8
Same specialty, same city.
Trained at Mayo Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 2021 at Mayo Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Imaging of retina 8
Providers in PA who bill this service to Medicare most often.
Common questions
What is Dr. Xu's specialty?
Dr. Xu is an eye doctor in Philadelphia, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.
NPI registry
Where can I find Dr. Xu?
Dr. Xu is listed at 840 Walnut St Ste 1020, Philadelphia, PA 19107. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Xu?
The number on file is (800) 331-6634. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Xu?
Dr. Xu's National Provider Identifier is 1699351635. 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 Dr. Xu's medical education?
Dr. Xu attended Mayo Medical School, graduating in 2021. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Xu have?
Dr. Xu has 5 years experience. Calculated from a graduation year of 2021, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Xu known for?
According to Medicare billing data, Dr. Xu provides treatments such as imaging of retina 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 Dr. Xu's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Xu. 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.