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Endocrinology

Hyon S. Kim, MD

Works at hospitals in New Brunswick, NJ · Somerville, NJ · New Jersey

Summary

Dr. Hyon S. Kim, MD is an endocrinologist at 1 Robert Wood Johnson Pl, Rutgers Health Rwj Ped Endocrinolog, New Brunswick, NJ 08901. Phone: (732) 235-7044. Accepts Medicare assignment. In 2024, Hyon S. Kim had 146 Original Medicare patients and 421 services. NPI 1649716689. 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 Hyon S. Kim, 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 Hyon S. Kim accept Medicare assignment?
Yes. Medicare's clinician data says Hyon S. Kim 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 Hyon S. Kim see?
In 2024, CMS data shows 146 Original Medicare patients and 421 services for Hyon S. Kim. This counts Original Medicare only and measures volume, not quality.
What is Hyon S. Kim's NPI number?
1649716689. 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 Hyon S. Kim, 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 patients146
Services billed to Medicare421
Different services or procedures11
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)154 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)149 services
  3. Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)35 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)29 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)28 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 cholesterol75%
  • Diabetes75%
  • Ischemic heart disease52%
  • Chronic kidney disease45%
  • Arthritis44%

Hospitals where Hyon S. Kim works

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

Group practices

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

  • Rutgers Health-Rwj Scleroderma Program391 clinicians in the group

Specialties

Find other Endocrinology doctors in New Jersey →

Other endocrinologists in New Brunswick

Clinicians with the same Medicare primary specialty in New Brunswick, NJ — not a recommendation.

All endocrinologists in New Brunswick →

Other clinicians in Rutgers Health-Rwj Scleroderma Program

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

Clinician information

CredentialMD
Medical schoolRutgers New Jersey Medical School
Graduation year2016 (10 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1649716689
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