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Adult Congenital Heart Disease (ACHD)

Sihong Huang, MD

Works at hospitals in Boston, MA · Massachusetts

Summary

Dr. Sihong Huang, MD is an adult congenital heart disease cardiologist at 102 Endicott St, Mgh North Shore Medical, Danvers, MA 01923. Phone: (978) 882-6100. Accepts Medicare assignment. In 2024, Sihong Huang had 59 Original Medicare patients and 191 services. NPI 1174561484. 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: Adult congenital heart disease cardiologist (Medicare lists Adult Congenital Heart Disease (ACHD))
  • Address: 102 Endicott St, Mgh North Shore Medical, Danvers, MA 01923 · Directions (3 more locations)
  • Phone: (978) 882‑6100
  • Medicare: Accepts Medicare assignment
  • Hospitals: Brigham and Women's Hospital, Massachusetts General Hospital
  • Group practice: Massachusetts General Physicians Organization Inc
  • Medical school: Boston University School Of Medicine · graduated 2002 (24 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 Sihong Huang, 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 Sihong Huang accept Medicare assignment?
Yes. Medicare's clinician data says Sihong Huang 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 Sihong Huang see?
In 2024, CMS data shows 59 Original Medicare patients and 191 services for Sihong Huang. This counts Original Medicare only and measures volume, not quality.
What is Sihong Huang's NPI number?
1174561484. 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 Sihong Huang, 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 patients59
Services billed to Medicare191
Different services or procedures17
Participating Medicare providerYes
Average age of these patients60

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)44 services
  2. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)44 services
  3. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)23 services
  4. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)14 services
  5. 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)13 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 cholesterol64%
  • High blood pressure54%
  • Ischemic heart disease37%
  • Heart failure37%
  • Arthritis34%
  • Anxiety32%

Hospitals where Sihong Huang works

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

Group practices

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

  • Massachusetts General Physicians Organization Inc3,558 clinicians in the group

Specialties

Find other Adult Congenital Heart Disease (ACHD) doctors in Massachusetts →

Other adult congenital heart disease cardiologists in Danvers

Clinicians with the same Medicare primary specialty in Danvers, MA — not a recommendation.

All adult congenital heart disease cardiologists in Danvers →

Other clinicians in Massachusetts General Physicians Organization Inc

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

Clinician information

CredentialMD
Medical schoolBoston University School Of Medicine
Graduation year2002 (24 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1174561484
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