Quick answers
- Does Matthew B. Zamora accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew B. Zamora 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 Matthew B. Zamora see?
- In 2024, CMS data shows 202 Original Medicare patients and 539 services for Matthew B. Zamora. This counts Original Medicare only and measures volume, not quality.
- What is Matthew B. Zamora's NPI number?
- 1659883676. 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 Matthew B. Zamora, 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 | 202 |
|---|---|
| Services billed to Medicare | 539 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)208 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)143 services
- Transitional care management services for problem of at least moderate complexity (99495)36 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)26 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)13 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 pressure75%
- High cholesterol75%
- Arthritis55%
- Ischemic heart disease39%
- Depression34%
- Anxiety33%
Hospitals where Matthew B. Zamora works
Medicare's Facility Affiliation Data lists Matthew B. Zamora 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.
- Covenant Medical CenterSaginaw, MI · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 230070
- McLaren Bay RegionBay City, MI · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 230041
- McLaren Central MichiganMount Pleasant, MI · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 230080
- MyMichigan Medical Center MidlandMidland, MI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: not listed by Medicare · CCN 230222
Practice locations
Addresses where Matthew B. Zamora is enrolled with Medicare (CMS data updated October 2, 2026).
- 1900 Columbus Ave, Bay RegionalBay City, MI 48708
- 3076 Northridge RdHale, MI 48739 (989) 728‑0242
- 4 Columbus Ave, Suite 380Bay City, MI 48708 (989) 393‑2700
- 4818 W Professional DrBay City, MI 48706 (989) 686‑8100
- 5979 Lakeshore RdFort Gratiot, MI 48059 (810) 385‑6370
Group practices
Medicare enrollment lists Matthew B. Zamora as a member of these groups (CMS data updated October 2, 2026).
- McLaren Medical Group213 clinicians in the group
- McLaren Bay Region113 clinicians in the group
- Progress Physical Therapy Inc20 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Bay City
Clinicians with the same Medicare primary specialty in Bay City, MI — not a recommendation.
Other clinicians in McLaren Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2017 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1659883676 |
| 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