Christina T. Fahlsing, MD

Medicare activity in 2024

Official CMS public-use data for Christina T. Fahlsing, 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.

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)30 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)26 services
3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)26 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)24 services
5. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)22 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 cholesterol73%
• Arthritis66%
• Depression47%
• Anxiety42%
• Chronic kidney disease40%

Hospitals where Christina T. Fahlsing works

Medicare's Facility Affiliation Data lists Christina T. Fahlsing 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.

• Corewell Health Gerber HospitalFremont, MI · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 231338
• Corewell Health Zeeland HospitalZeeland, MI · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 230003
• Spectrum HealthGrand Rapids, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 230038

Practice locations

Addresses where Christina T. Fahlsing is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 8; the Medicare profile lists all.

• 100 Michigan Ave NEGrand Rapids, MI 49503
• 100 Michigan St NE Rm, 280 Corewell Health Medical Group WestGrand Rapids, MI 49503 (616) 267‑0115
• 1840 Wealthy St SE, Corewell Health Medical Group WestGrand Rapids, MI 49506 (616) 885‑5000
• 2249 Wealthy St SE, 110 Corewell Health Medical Group WestEast Grand Rapids, MI 49506 (616) 391‑4600
• 230 Michigan St NE, 230 Corewell Health Medical Group WestGrand Rapids, MI 49503 (616) 774‑2822

Group practices

Medicare enrollment lists Christina T. Fahlsing as a member of this group (CMS data updated October 2, 2026).

• Spectrum Health Primary Care Partners2,294 clinicians in the group

Specialties

• Infectious Diseaseprimary
• Internal Medicinealso

Find other Infectious Disease doctors in Michigan →

Other infectious disease doctors in Grand Rapids

Clinicians with the same Medicare primary specialty in Grand Rapids, MI — not a recommendation.

• Gordana Simeunovic, MD
• Rosemary M. Olivero, MD
• George C. Fogg, MD
• Russell Lampen, DO
• Jorgelina De Sanctis, MD
• Brian K. Petroelje, MD
• Joshua D. Donkin, MD
• Andrew P. Jameson, MD

All infectious disease doctors in Grand Rapids →

Other clinicians in Spectrum Health Primary Care Partners

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

• Shan E. Abbas, MD
• Katherine R. Van Oss, MD
• Jordan R. Lowe, MD
• Kathleen E. Mosentine, MD
• Daniel L. Wallace, DO
• Kevin R. Knox, MD

Clinician information

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