Quick answers
- Does Margarita C. Bautista accept Medicare assignment?
- Yes. Medicare's clinician data says Margarita C. Bautista 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 Margarita C. Bautista see?
- In 2024, CMS data shows 70 Original Medicare patients and 163 services for Margarita C. Bautista. This counts Original Medicare only and measures volume, not quality.
- What is Margarita C. Bautista's NPI number?
- 1861556391. 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 Margarita C. Bautista, 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 | 70 |
|---|---|
| Services billed to Medicare | 163 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 65 |
Most frequent services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)34 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)29 services
- Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen (87635)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 blood pressure59%
- High cholesterol49%
- Arthritis37%
- Anxiety30%
- Depression24%
- Diabetes21%
Practice locations
Addresses where Margarita C. Bautista is enrolled with Medicare (CMS data updated October 2, 2026).
- 3799 Mt Diablo Blvd, Suite 100Lafayette, CA 94549 (925) 297‑6396
- 4465 1st StLivermore, CA 94551 (925) 315‑8828
- 5951 Lone Tree Way, Suite 100Brentwood, CA 94513 (925) 234‑4447
- 901 Sunvalley Blvd, Suite 100Concord, CA 94520 (925) 234‑4447
Group practices
Medicare enrollment lists Margarita C. Bautista as a member of this group (CMS data updated October 2, 2026).
- Stat Med PC a California Medical Professional Corporation16 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Lafayette
Clinicians with the same Medicare primary specialty in Lafayette, CA — not a recommendation.
Other clinicians in Stat Med PC a California Medical Professional Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1861556391 |
| 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