Anthony P. Kosinski, MD

Medicare activity in 2024

Official CMS public-use data for Anthony P. Kosinski, 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)150 services
2. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)37 services
3. Cervical or vaginal cancer screening; pelvic and clinical breast examination (G0101)13 services
4. Insertion of temporary bladder tube (51701)12 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 cholesterol72%
• High blood pressure55%
• Arthritis50%
• Osteoporosis33%
• Anxiety31%
• Depression23%

Hospitals where Anthony P. Kosinski works

Medicare's Facility Affiliation Data lists Anthony P. Kosinski 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.

• Petaluma Valley HospitalPetaluma, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 050136
• Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050174

Practice locations

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

• 1165 Montgomery DrSanta Rosa, CA 95405 (707) 546‑3210
• 1550 Professional Dr, Suite 100Petaluma, CA 94954 (707) 763‑2900
• 200 W Ctr St PromenadeAnaheim, CA 92805
• 400 N McDowell BlvdPetaluma, CA 94954 (707) 778‑2631
• 500 Doyle Park DrSanta Rosa, CA 95405

Group practices

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

• Providence Medical Foundation1,466 clinicians in the group

Specialties

• Obstetrics/Gynecologyprimary

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Santa Rosa

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

• Susan K. Dehnad, MD
• Irene S. Ofarrell, MD
• Karen Chong, MD
• Pratibha Burli, MD
• Rita Y. Wang, MD
• Lena H. Kim, MD
• Mary Ashby-Ahearn, MD
• Shawn M. Quinlan, MD

All OB-GYNs in Santa Rosa →

Other clinicians in Providence Medical Foundation

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

• Veysel Tahan, MD
• Mohammad Z. Nabulsi, MD
• Guadalupe D. Chabriel, NP
• Lirong Zhu, NP
• Lisa Y. Park, NP
• Mark S. Weissig, 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