Quick answers
- Where does Mary A. Markiewitz see patients?
- Medicare's clinician data lists 4 practice locations, including Vacaville, CA, Fairfield, CA and Sacramento, CA. Call before your visit to confirm the address.
- What is Mary A. Markiewitz's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does Mary A. Markiewitz accept Medicare assignment?
- Yes. Medicare's clinician data says Mary A. Markiewitz accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Mary A. Markiewitz?
- (800) 972-5547, as listed in official Medicare / NPI Registry data.
- What is Mary A. Markiewitz's NPI number?
- 1063588044. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Mary A. Markiewitz is enrolled with Medicare (CMS data updated 2026-10-02).
- 2060 Harbison Dr, Suite DVacaville, CA 95687 (800) 972‑5547
- 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 Mary A. Markiewitz as a member of this group (CMS data updated 2026-10-02).
- Sutter Valley Medical Foundation2,500 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Vacaville
Clinicians with the same Medicare primary specialty in Vacaville, CA — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1063588044 |
| 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 2026-10-02, retrieved 2026-10-29
- 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