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

General Surgery

Chandrasekar Santhanakrishnan, MD

Works at hospitals in Seattle, WA · Washington

Summary

Dr. Chandrasekar Santhanakrishnan, MD is a general surgeon at 1124 Columbia St, Suite 600, Seattle, WA 98104. Phone: (206) 386-3660. Accepts Medicare assignment. In 2024, Chandrasekar Santhanakrishnan had 34 Original Medicare patients and 96 services. NPI 1427039189. 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: General surgeon (Medicare lists General Surgery)
  • Address: 1124 Columbia St, Suite 600, Seattle, WA 98104 · Directions
  • Phone: (206) 386‑3660
  • Medicare: Accepts Medicare assignment
  • Hospital: Swedish Medical Center
  • Group practice: Swedish Health Services
  • Medical school: graduated 2005 (21 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Chandrasekar Santhanakrishnan, 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 Chandrasekar Santhanakrishnan accept Medicare assignment?
Yes. Medicare's clinician data says Chandrasekar Santhanakrishnan 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 Chandrasekar Santhanakrishnan see?
In 2024, CMS data shows 34 Original Medicare patients and 96 services for Chandrasekar Santhanakrishnan. This counts Original Medicare only and measures volume, not quality.
What is Chandrasekar Santhanakrishnan's NPI number?
1427039189. 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 Chandrasekar Santhanakrishnan, 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 patients34
Services billed to Medicare96
Different services or procedures12
Participating Medicare providerYes
Average age of these patients56

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)26 services
  2. Transplantation of donor kidney (50360)20 services
  3. Preparation of donor kidney for transplantation (50323)18 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%
  • Chronic kidney disease75%
  • High cholesterol71%
  • Diabetes50%

Hospitals where Chandrasekar Santhanakrishnan works

Medicare's Facility Affiliation Data lists Chandrasekar Santhanakrishnan 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.

  • Swedish Medical CenterSeattle, WA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 500027

Practice locations

Addresses where Chandrasekar Santhanakrishnan is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Chandrasekar Santhanakrishnan as a member of this group (CMS data updated October 2, 2026).

  • Swedish Health Services1,037 clinicians in the group

Specialties

Find other General Surgery doctors in Washington →

Other general surgeons in Seattle

Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.

All general surgeons in Seattle →

Other clinicians in Swedish Health Services

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

Clinician information

CredentialMD
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1427039189
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