Quick answers
- Does Bethelen J. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Bethelen J. Johnson 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 Bethelen J. Johnson see?
- In 2024, CMS data shows 22 Original Medicare patients and 43 services for Bethelen J. Johnson. This counts Original Medicare only and measures volume, not quality.
- What is Bethelen J. Johnson's NPI number?
- 1063515856. 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 Bethelen J. Johnson, 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 | 22 |
|---|---|
| Services billed to Medicare | 43 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 67 |
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 pressure64%
- High cholesterol59%
Practice locations
Addresses where Bethelen J. Johnson is enrolled with Medicare (CMS data updated October 2, 2026).
- 2702 Low CtFairfield, CA 94534 (707) 432‑2600
- 2720 Low CtFairfield, CA 94534 (707) 428‑2731
- 2800 L StSacramento, CA 95816
Group practices
Medicare enrollment lists Bethelen J. Johnson as a member of this group (CMS data updated October 2, 2026).
- Sutter Valley Medical Foundation2,500 clinicians in the group
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Fairfield
Clinicians with the same Medicare primary specialty in Fairfield, CA — not a recommendation.
Other clinicians in Sutter Valley Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 1995 (31 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063515856 |
| 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
- 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