Kristin Fless, MD

Medicare activity in 2024

Official CMS public-use data for Kristin Fless, 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)191 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)122 services
3. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)53 services
4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)47 services
5. Test to examine how well the lungs exchange gases (94729)35 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%
• Arthritis58%
• Ischemic heart disease45%
• COPD45%
• Diabetes38%

Hospitals where Kristin Fless works

Medicare's Facility Affiliation Data lists Kristin Fless 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.

• Clara Maass Medical CenterBelleville, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310009
• Cooperman Barnabas Medical CenterLivingston, NJ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 310076

Practice locations

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

• 94 Old Short Hills RdLivingston, NJ 07039 (973) 322‑7000

Group practices

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

• Barnabas Health Medical Group PC1,070 clinicians in the group

Specialties

• Critical Care (Intensivists)primary
• Pulmonary Diseasealso

Find other Critical Care (Intensivists) doctors in New Jersey →

Other critical care doctors in Livingston

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

• Fariborz Rezai, MD
• Edward H. Gray, DO
• Paul G. Delle Donna, DO
• Shasha Chen, MD
• Bilal Khan, MD

All critical care doctors in Livingston →

Other clinicians in Barnabas Health Medical Group PC

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

• Theresa L. Dobbin, NP
• Clayona A. Shand, NP
• Margarite Consolmagno, NP
• John Jacobi, PA
• Miriam I. Zander, DO
• David Gonzalez, 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