Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Ophthalmology

Dorothy P. Khong, MD

Works at hospitals in Berkeley, CA · California

Summary

Dr. Dorothy P. Khong, MD is an ophthalmologist at 1442 Webster St, Alameda, CA 94501. Phone: (510) 522-0377. Accepts Medicare assignment. In 2024, Dorothy P. Khong had 538 Original Medicare patients and 2,723 services. NPI 1326146630. 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: Ophthalmologist (Medicare lists Ophthalmology)
  • Address: 1442 Webster St, Alameda, CA 94501 · Directions
  • Phone: (510) 522‑0377
  • Medicare: Accepts Medicare assignment
  • Hospital: Alta Bates Summit Medical Center - Alta Bates Camp
  • Group practice: SF Bay Eye
  • Medical school: University Of California, Geffen School Of Medicine · graduated 2002 (24 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Dorothy P. Khong, 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 Dorothy P. Khong accept Medicare assignment?
Yes. Medicare's clinician data says Dorothy P. Khong 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 Dorothy P. Khong see?
In 2024, CMS data shows 538 Original Medicare patients and 2,723 services for Dorothy P. Khong. This counts Original Medicare only and measures volume, not quality.
What is Dorothy P. Khong's NPI number?
1326146630. 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 Dorothy P. Khong, 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 patients538
Services billed to Medicare2,723
Different services or procedures41
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Established patient complete exam of visual system (92014)439 services
  2. Exam of the internal drainage system of eye (92020)400 services
  3. Established patient problem focused exam of visual system (92012)313 services
  4. Photography of the retina (92250)272 services
  5. Exam of visual field with extended testing (92083)148 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%
  • Diabetes46%
  • Arthritis29%
  • Osteoporosis25%
  • Chronic kidney disease22%

Hospitals where Dorothy P. Khong works

Medicare's Facility Affiliation Data lists Dorothy P. Khong 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.

Practice locations

Addresses where Dorothy P. Khong is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Dorothy P. Khong as a member of this group (CMS data updated October 2, 2026).

  • SF Bay Eye4 clinicians in the group

Specialties

Find other Ophthalmology doctors in California →

Other ophthalmologists in Alameda

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

All ophthalmologists in Alameda →

Other clinicians in SF Bay Eye

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, Geffen School Of Medicine
Graduation year2002 (24 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1326146630
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