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

Internal Medicine

Rebecca M. Ashe, MD

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

Summary

Dr. Rebecca M. Ashe, MD is an internal medicine doctor at 301 Industrial Rd, San Carlos, CA 94070. Phone: (415) 600-1000. Accepts Medicare assignment. In 2024, Rebecca M. Ashe had 103 Original Medicare patients and 203 services. NPI 1003980798. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 301 Industrial Rd, San Carlos, CA 94070 · Directions
  • Phone: (415) 600‑1000
  • Medicare: Accepts Medicare assignment
  • Hospitals: Peninsula Medical Center, Sequoia Hospital
  • Group practice: Sutter Bay Medical Foundation
  • Medical school: University Of California, Davis School Of Medicine · graduated 1991 (35 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Rebecca M. Ashe, 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 Rebecca M. Ashe accept Medicare assignment?
Yes. Medicare's clinician data says Rebecca M. Ashe 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 Rebecca M. Ashe see?
In 2024, CMS data shows 103 Original Medicare patients and 203 services for Rebecca M. Ashe. This counts Original Medicare only and measures volume, not quality.
What is Rebecca M. Ashe's NPI number?
1003980798. 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 Rebecca M. Ashe, 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 patients103
Services billed to Medicare203
Different services or procedures24
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)57 services
  2. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)46 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)25 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 pressure61%
  • Arthritis48%
  • Anxiety26%
  • Osteoporosis23%
  • Depression22%

Hospitals where Rebecca M. Ashe works

Medicare's Facility Affiliation Data lists Rebecca M. Ashe 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

Practice locations

Addresses where Rebecca M. Ashe is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Rebecca M. Ashe as a member of this group (CMS data updated October 2, 2026).

  • Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Carlos

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

All internal medicine doctors in San Carlos →

Other clinicians in Sutter Bay Medical Foundation

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, Davis School Of Medicine
Graduation year1991 (35 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1003980798
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