Quick answers
- Does Rachel A. Mihelich accept Medicare assignment?
- Yes. Medicare's clinician data says Rachel A. Mihelich 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 Rachel A. Mihelich see?
- In 2024, CMS data shows 191 Original Medicare patients and 3,617 services for Rachel A. Mihelich. This counts Original Medicare only and measures volume, not quality.
- What is Rachel A. Mihelich's NPI number?
- 1346715588. 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 Rachel A. Mihelich, 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 | 191 |
|---|---|
| Services billed to Medicare | 3,617 |
| Different services or procedures | 62 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)335 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)169 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)52 services
- Aspiration and/or injection of fluid from large joint (20610)48 services
- X-ray of shoulder, minimum of 2 views (73030)44 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 cholesterol75%
- High blood pressure67%
- Arthritis64%
- Diabetes23%
- Ischemic heart disease23%
- Depression22%
Hospitals where Rachel A. Mihelich works
Medicare's Facility Affiliation Data lists Rachel A. Mihelich 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.
- NorthBay Medical CenterFairfield, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050367
Practice locations
Addresses where Rachel A. Mihelich is enrolled with Medicare (CMS data updated October 2, 2026).
- 2405 Shadelands DrWalnut Creek, CA 94598 (925) 939‑8585
- 2500 Hilborn RdFairfield, CA 94534 (707) 646‑3445
- 2625 Shadelands DrWalnut Creek, CA 94598 (925) 939‑8585
- 5201 Norris Canyon RdSan Ramon, CA 94583 (925) 939‑8585
Group practices
Medicare enrollment lists Rachel A. Mihelich as a member of these groups (CMS data updated October 2, 2026).
- NorthBay Physicians Surgery Center, LLC324 clinicians in the group
- NorthBay Health Medical Foundation213 clinicians in the group
- Golden State Orthopedics and Spine182 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Other clinicians in NorthBay Physicians Surgery Center, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1346715588 |
| 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