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Nephrology

Jamie Chin-Theodorou, MD

Works at hospitals in Michigan City, IN · Valparaiso, IN · Knox, IN … · Indiana

Summary

Dr. Jamie Chin-Theodorou, MD is a nephrologist at 3100 Village Pt, Chesterton, IN 46304. Accepts Medicare assignment. In 2024, Jamie Chin-Theodorou had 574 Original Medicare patients and 1,834 services. NPI 1326439241. 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 Jamie Chin-Theodorou, 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 Jamie Chin-Theodorou accept Medicare assignment?
Yes. Medicare's clinician data says Jamie Chin-Theodorou 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 Jamie Chin-Theodorou see?
In 2024, CMS data shows 574 Original Medicare patients and 1,834 services for Jamie Chin-Theodorou. This counts Original Medicare only and measures volume, not quality.
What is Jamie Chin-Theodorou's NPI number?
1326439241. 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 Jamie Chin-Theodorou, 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 patients574
Services billed to Medicare1,834
Different services or procedures18
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)685 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)476 services
  3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)311 services
  4. 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)103 services
  5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)67 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%
  • Chronic kidney disease75%
  • Diabetes51%
  • Ischemic heart disease50%
  • Arthritis49%

Hospitals where Jamie Chin-Theodorou works

Medicare's Facility Affiliation Data lists Jamie Chin-Theodorou 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.

  • Franciscan Health Michigan CityMichigan City, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150015
  • Northwest Health - PorterValparaiso, IN · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 150035
  • Northwest Health - StarkeKnox, IN · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 150102
  • Northwest Health-La PorteLa Porte, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150006
  • St Mary Medical Center IncHobart, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150034

Practice locations

Addresses where Jamie Chin-Theodorou is enrolled with Medicare (CMS data updated October 2, 2026).

  • 3100 Village PtChesterton, IN 46304

Group practices

Medicare enrollment lists Jamie Chin-Theodorou as a member of this group (CMS data updated October 2, 2026).

  • Duneland Nephrology PC4 clinicians in the group

Specialties

Find other Nephrology doctors in Indiana →

Other nephrologists in Chesterton

Clinicians with the same Medicare primary specialty in Chesterton, IN — not a recommendation.

All nephrologists in Chesterton →

Other clinicians in Duneland Nephrology PC

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

Clinician information

CredentialMD
Medical schoolNorthwestern University Feinberg Medical School
Graduation year2016 (10 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1326439241
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