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

Internal Medicine

Marie Denise B. Kan, MD

Works at hospitals in Burlingame, CA · Redwood City, CA · Stanford, CA · California

Summary

Dr. Marie Denise B. Kan, MD is an internal medicine doctor at 400 Seaport Ct, Suite 203, Redwood City, CA 94063. Phone: (650) 727-1940. Accepts Medicare assignment. In 2024, Marie Denise B. Kan had 480 Original Medicare patients and 5,891 services. NPI 1801392428. 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.

From official Medicare data

This page shows what Medicare's official clinician data says about Marie Denise B. Kan, 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 Marie Denise B. Kan accept Medicare assignment?
Yes. Medicare's clinician data says Marie Denise B. Kan 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 Marie Denise B. Kan see?
In 2024, CMS data shows 480 Original Medicare patients and 5,891 services for Marie Denise B. Kan. This counts Original Medicare only and measures volume, not quality.
What is Marie Denise B. Kan's NPI number?
1801392428. 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 Marie Denise B. Kan, 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 patients480
Services billed to Medicare5,891
Different services or procedures38
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Injection, denosumab, 1 mg (J0897)2,220 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)293 services
  3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)238 services
  4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)228 services
  5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)121 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 cholesterol75%
  • High blood pressure70%
  • Arthritis42%
  • Diabetes25%
  • Chronic kidney disease22%
  • Ischemic heart disease18%

Hospitals where Marie Denise B. Kan works

Medicare's Facility Affiliation Data lists Marie Denise B. Kan 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.

  • Peninsula Medical CenterBurlingame, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050007
  • Sequoia HospitalRedwood City, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050197
  • Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441

Practice locations

Addresses where Marie Denise B. Kan is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Redwood City

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

All internal medicine doctors in Redwood City →

Clinician information

CredentialMD
Medical schoolWayne State University School Of Medicine
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1801392428
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