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

Anesthesiology

Mallika S. Thampy, MD

Works at hospitals in Portland, OR · Oregon

Summary

Dr. Mallika S. Thampy, MD is an anesthesiologist at 2801 N Gantenbein Ave, Portland, OR 97227. Phone: (503) 299-9906. Accepts Medicare assignment. In 2024, Mallika S. Thampy had 17 Original Medicare patients and 21 services. NPI 1508127804. 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: Anesthesiologist (Medicare lists Anesthesiology)
  • Address: 2801 N Gantenbein Ave, Portland, OR 97227 · Directions
  • Phone: (503) 299‑9906
  • Medicare: Accepts Medicare assignment
  • Hospital: Legacy Emanuel Medical Center
  • Group practice: Oregon Anesthesiology Group PC
  • Medical school: University Of Missouri, Kansas City, School Of Medicine · graduated 2012 (14 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Mallika S. Thampy, 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 Mallika S. Thampy accept Medicare assignment?
Yes. Medicare's clinician data says Mallika S. Thampy 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 Mallika S. Thampy see?
In 2024, CMS data shows 17 Original Medicare patients and 21 services for Mallika S. Thampy. This counts Original Medicare only and measures volume, not quality.
What is Mallika S. Thampy's NPI number?
1508127804. 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 Mallika S. Thampy, 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 patients17
Services billed to Medicare21
Different services or procedures20
Participating Medicare providerYes
Average age of these patients69

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%

Hospitals where Mallika S. Thampy works

Medicare's Facility Affiliation Data lists Mallika S. Thampy 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 Mallika S. Thampy is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Oregon Anesthesiology Group PC232 clinicians in the group

Specialties

Find other Anesthesiology doctors in Oregon →

Other anesthesiologists in Portland

Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.

All anesthesiologists in Portland →

Other clinicians in Oregon Anesthesiology Group PC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Missouri, Kansas City, School Of Medicine
Graduation year2012 (14 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1508127804
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