Quick answers
- Does Jaroslaw Kotlarczyk accept Medicare assignment?
- Yes. Medicare's clinician data says Jaroslaw Kotlarczyk accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Jaroslaw Kotlarczyk see?
- In 2024, CMS data shows 168 Original Medicare patients and 242 services for Jaroslaw Kotlarczyk. This counts Original Medicare only and measures volume, not quality.
- What is Jaroslaw Kotlarczyk's NPI number?
- 1972661296. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Jaroslaw Kotlarczyk, 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.
| Original Medicare patients | 168 |
|---|---|
| Services billed to Medicare | 242 |
| Different services or procedures | 44 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand (01810)53 services
- Ultrasonic guidance for needle placement (76942)32 services
- Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)19 services
- Anesthesia for procedure for total knee joint replacement (01402)18 services
- Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)15 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 cholesterol68%
- Arthritis67%
- High blood pressure61%
- Diabetes23%
- Anxiety22%
- Depression20%
Hospitals where Jaroslaw Kotlarczyk works
Medicare's Facility Affiliation Data lists Jaroslaw Kotlarczyk 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.
- John Muir Medical Center - Concord CampusConcord, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050496
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050174
- St Joseph Medical CenterTacoma, WA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 500108
- Sutter Santa Rosa Regional HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050291
Practice locations
Addresses where Jaroslaw Kotlarczyk is enrolled with Medicare (CMS data updated October 2, 2026).
- 1717 S J StTacoma, WA 98405 (253) 426‑6341
- 2540 E StConcord, CA 94520 (925) 682‑8200
- 3325 Chanate RdSanta Rosa, CA 95404 (707) 576‑4000
Group practices
Medicare enrollment lists Jaroslaw Kotlarczyk as a member of these groups (CMS data updated October 2, 2026).
- Franciscan Medical Group1,421 clinicians in the group
- Cep America - Anesthesia PC849 clinicians in the group
- Anesthesia and Analgesia Medical Group Inc73 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Tacoma
Clinicians with the same Medicare primary specialty in Tacoma, WA — not a recommendation.
Other clinicians in Franciscan Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972661296 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians