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

General Surgery

Rachel M. Tay, MD

Works at hospitals in Buffalo, MN · Maple Grove, MN · Robbinsdale, MN · Minnesota

Summary

Dr. Rachel M. Tay, MD is a general surgeon at 303 Catlin St, Buffalo, MN 55313. Phone: (763) 684-5100. Accepts Medicare assignment. In 2024, Rachel M. Tay had 96 Original Medicare patients and 153 services. NPI 1275761827. 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 Rachel M. Tay, 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 Rachel M. Tay accept Medicare assignment?
Yes. Medicare's clinician data says Rachel M. Tay 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 Rachel M. Tay see?
In 2024, CMS data shows 96 Original Medicare patients and 153 services for Rachel M. Tay. This counts Original Medicare only and measures volume, not quality.
What is Rachel M. Tay's NPI number?
1275761827. 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 Rachel M. Tay, 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 patients96
Services billed to Medicare153
Different services or procedures40
Participating Medicare providerYes
Average age of these patients70

Most frequent services

  1. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)17 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)16 services
  3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)15 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)12 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 cholesterol66%
  • Chronic kidney disease38%
  • Arthritis33%
  • Diabetes30%
  • Ischemic heart disease28%

Hospitals where Rachel M. Tay works

Medicare's Facility Affiliation Data lists Rachel M. Tay 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.

  • Buffalo HospitalBuffalo, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: not listed by Medicare · CCN 240076
  • Maple Grove HospitalMaple Grove, MN · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 240214
  • North Memorial Health HospitalRobbinsdale, MN · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 240001

Practice locations

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

Group practices

Medicare enrollment lists Rachel M. Tay as a member of these groups (CMS data updated October 2, 2026).

  • Allina Health System3,842 clinicians in the group
  • North Memorial Health Care504 clinicians in the group
  • Specialists in General Surgery, Ltd17 clinicians in the group

Specialties

Find other General Surgery doctors in Minnesota →

Other general surgeons in Buffalo

Clinicians with the same Medicare primary specialty in Buffalo, MN — not a recommendation.

All general surgeons in Buffalo →

Other clinicians in Allina Health System

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

Clinician information

CredentialMD
Medical schoolUniversity Of Virginia School Of Medicine
Graduation year2009 (17 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1275761827
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