Teodoro P. Nissen, MD

Medicare activity in 2024

Official CMS public-use data for Teodoro P. Nissen, 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. Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)260 services
2. X-ray of knee, 4 or more views (73564)124 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)85 services
4. X-ray of shoulder, minimum of 2 views (73030)65 services
5. X-ray of knee, 3 views (73562)63 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%
• Arthritis75%
• High cholesterol70%
• Diabetes38%
• Depression26%
• Anxiety25%

Hospitals where Teodoro P. Nissen works

Medicare's Facility Affiliation Data lists Teodoro P. Nissen 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.

• Sonoma Valley HospitalSonoma, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050090
• Sutter Solano Medical CenterVallejo, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050101

Practice locations

Addresses where Teodoro P. Nissen is enrolled with Medicare (CMS data updated October 2, 2026).

• 100 Hospital Dr, Suite 303Vallejo, CA 94589 (707) 645‑7210

Group practices

Medicare enrollment lists Teodoro P. Nissen as a member of this group (CMS data updated October 2, 2026).

• Teodoro P Nissen MD Inc2 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in California →

Other orthopedic surgeons in Vallejo

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

• Jessica Bryant, MD
• Steven J. McGrath, MD
• Vincent E. Chow, MD
• Alexander R. Disston, MD
• Noel Palumbo, MD
• Matthew S. Zimmermann, MD
• Peter K. Mansuripur, MD
• Chad E. Maclachlan, MD

All orthopedic surgeons in Vallejo →

Other clinicians in Teodoro P Nissen MD Inc

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

• Joseph M. Centeno, 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