Physician Profile
Christopher K. Tsai, MD practices urology in Upland, CA. Christopher is a 1994 graduate of Loma Linda University School of Medicine. Medicare claims data shows Christopher provided 2,888 services to 1,770 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, urinalysis, manual test, and leuprolide acetate (for depot suspension), 7.5 mg.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
1175 E ARROW HWY SUITE E
Upland, CA 91786
Within Urology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Bladder and urethra
Kidney and ureter
Male reproductive and sexual health
Prostate
Urinary symptoms and infection
Bladder & Urination
Kidney health
Men's health
Urinary symptoms
Most searched procedures
Office diagnosis
Bladder procedures
Diagnostic imaging
Kidney & ureter procedures
Kidney and ureter surgery
Male reproductive
Prostate
Prostate procedures
Stone procedures
2,888 services · 1,770 patients · 15 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of bladder and urethra using an endoscope | Procedure | 52000 |
77 | As often as other peers in Urology |
| Ultrasound measurement of bladder capacity after voiding | Procedure | 51798 |
72 | Less often than most peers in Urology |
| Biopsy of prostate gland | Procedure | 55700 |
16 | Less often than most peers in Urology |
| Removal of prostate gland using an electrocautery knife through urethra with control of bleeding using an endoscope | Procedure | 52601 |
12 | Less often than most peers in Urology |
| Ultrasonic guidance for needle placement | Imaging | 76942 |
15 | Less often than most peers in Urology |
| Ultrasound scan of pelvic region through rectum | Imaging | 76872 |
15 | Less often than most peers in Urology |
| Administration of hormonal anti-neoplastic chemotherapy under skin or into muscle | Treatment | 96402 |
47 | More often than most peers in Urology |
| Leuprolide acetate (for depot suspension), 7.5 mg | Drug given | J9217 |
137 | As often as other peers in Urology |
| Injection, garamycin, gentamicin, up to 80 mg | Drug given | J1580 |
16 | Less often than most peers in Urology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
1,352 | More than most peers in Urology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Tsai is an urologist in Upland, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Urology”.
NPI registry
Dr. Tsai is listed at 1175 E Arrow Hwy Suite E, Upland, CA 91786. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (909) 985-9737. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Tsai's National Provider Identifier is 1457344483. 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
Dr. Tsai attended Loma Linda University School of Medicine, graduating in 1994. This comes from the CMS National Downloadable File.
CMS public data
Dr. Tsai has 32 years experience. Calculated from a graduation year of 1994, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Tsai performs procedures including diagnostic exam of bladder and urethra using an endoscope, ultrasound measurement of bladder capacity after voiding and biopsy of prostate gland; reads or performs imaging such as ultrasonic guidance for needle placement and ultrasound scan of pelvic region through rectum; provides treatments such as administration of hormonal anti-neoplastic chemotherapy under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Tsai. 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.