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Urology

James S. Hwong, MD

Works at hospitals in Mountain View, CA · San Jose, CA · California

Summary

Dr. James S. Hwong, MD is a urologist at 200 Jose Figueres Ave, Suite 425, San Jose, CA 95116. Phone: (408) 871-5080. Accepts Medicare assignment. In 2024, James S. Hwong had 267 Original Medicare patients and 4,102 services. NPI 1629335476. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Urologist (Medicare lists Urology)
  • Address: 200 Jose Figueres Ave, Suite 425, San Jose, CA 95116 · Directions
  • Phone: (408) 871‑5080
  • Medicare: Accepts Medicare assignment
  • Hospitals: El Camino Health, Good Samaritan Hospital
  • Group practice: El Camino Health Medical Network LLC
  • Medical school: Northwestern University Feinberg Medical School · graduated 2012 (14 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about James S. Hwong, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does James S. Hwong accept Medicare assignment?
Yes. Medicare's clinician data says James S. Hwong accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does James S. Hwong see?
In 2024, CMS data shows 267 Original Medicare patients and 4,102 services for James S. Hwong. This counts Original Medicare only and measures volume, not quality.
What is James S. Hwong's NPI number?
1629335476. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for James S. Hwong, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients267
Services billed to Medicare4,102
Different services or procedures60
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)308 services
  2. Urinalysis, manual test (81002)290 services
  3. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)144 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)100 services
  5. Manual urinalysis test with examination using microscope, non-automated (81000)46 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Diabetes51%
  • Chronic kidney disease34%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)34%
  • Arthritis31%

Hospitals where James S. Hwong works

Medicare's Facility Affiliation Data lists James S. Hwong at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • El Camino HealthMountain View, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050308
  • Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050380

Practice locations

Addresses where James S. Hwong is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists James S. Hwong as a member of this group (CMS data updated October 2, 2026).

  • El Camino Health Medical Network LLC202 clinicians in the group

Specialties

Find other Urology doctors in California →

Other urologists in San Jose

Clinicians with the same Medicare primary specialty in San Jose, CA — not a recommendation.

All urologists in San Jose →

Other clinicians in El Camino Health Medical Network LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolNorthwestern University Feinberg Medical School
Graduation year2012 (14 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629335476
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians