Quick answers
- Does Mary K. Cardoza accept Medicare assignment?
- Yes. Medicare's clinician data says Mary K. Cardoza 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 Mary K. Cardoza see?
- In 2024, CMS data shows 98 Original Medicare patients and 177 services for Mary K. Cardoza. This counts Original Medicare only and measures volume, not quality.
- What is Mary K. Cardoza's NPI number?
- 1710936067. 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 Mary K. Cardoza, 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 | 98 |
|---|---|
| Services billed to Medicare | 177 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)62 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)27 services
- Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)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 cholesterol75%
- High blood pressure68%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)54%
- Arthritis46%
- Osteoporosis33%
- Diabetes29%
Hospitals where Mary K. Cardoza works
Medicare's Facility Affiliation Data lists Mary K. Cardoza 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
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050180
- Sutter Delta Medical CenterAntioch, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050523
Practice locations
Addresses where Mary K. Cardoza is enrolled with Medicare (CMS data updated October 2, 2026).
- 1505 Saint Alphonsus WayAlamo, CA 94507 (925) 932‑6330
- 2260 Gladstone Dr, Suite 5Pittsburg, CA 94565 (925) 427‑0203
- 2485 High School Ave, Suite 222Concord, CA 94520 (925) 932‑6330
- 2637 Shadelands DrWalnut Creek, CA 94598
- 365 Lennon LnWalnut Creek, CA 94598
Group practices
Medicare enrollment lists Mary K. Cardoza as a member of this group (CMS data updated October 2, 2026).
- Bass Medical Group291 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Alamo
Clinicians with the same Medicare primary specialty in Alamo, CA — not a recommendation.
Other clinicians in Bass Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Geffen School Of Medicine |
| Graduation year | 1987 (39 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1710936067 |
| 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