Christopher D. Kreulen, MD

Medicare activity in 2024

Official CMS public-use data for Christopher D. Kreulen, 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)130 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)125 services
3. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)50 services
4. Removal of deep implant from bone (20680)45 services
5. Correction of toe joint deformity (28285)33 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).

• Arthritis75%
• High cholesterol72%
• High blood pressure69%
• Depression26%
• Diabetes25%
• Anxiety23%

Hospitals where Christopher D. Kreulen works

Medicare's Facility Affiliation Data lists Christopher D. Kreulen 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.

• University of California Davis Medical CenterSacramento, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050599

Practice locations

Addresses where Christopher D. Kreulen is enrolled with Medicare (CMS data updated October 2, 2026).

• 3850 G StMerced, CA 95340 (209) 384‑6528

Group practices

Medicare enrollment lists Christopher D. Kreulen as a member of this group (CMS data updated October 2, 2026).

• Regents of the Univ of Ca1,584 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in California →

Other orthopedic surgeons in Merced

Clinicians with the same Medicare primary specialty in Merced, CA — not a recommendation.

• Gurbir S. Athwal, MD
• Eric Giza, MD
• Yashar Javidan, MD
• Naseem N. Beauchman, MD
• Gabriel Garcia-Diaz, MD
• Mario Sablan, DO
• Ricardo O. Pyfrom, MD
• Mark A. Lee, MD

All orthopedic surgeons in Merced →

Other clinicians in Regents of the Univ of Ca

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

• Alisa M. Dieterich, NP
• Christine Cadelina, NP
• Nicole A. Weiss, MD
• Elizabeth F. Maese, NP
• Kathleen S. Romanowski, MD
• Clifford T. Pereira, 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