Matthew Chase Cates, DO, MPH
Internal Medicine · San Antonio, TX
At a glance
303 N Frio St, San Antonio, TX 78207-3034
NPPES record updated Jul 6, 2020. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
303 N Frio StSan Antonio, TX 78207-3034
Additional reported practice locations
1625 Schrader BlvdLos Angeles, CA 900286213
Phone: 3239237500 1245 16Th St Ste 309
Santa Monica, CA 904041239
Phone: 3103194377
Fax: 3103194425
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 2016
- CMS specialties
- Internal Medicine
Practice groups
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Services other than consulting | $89,375.00 |
| Travel and lodging | $31,165.97 |
| Food and beverage | $7,846.89 |
| Consulting fee | $7,800.00 |
Reporting companies
| Company | Amount |
|---|---|
| VIIV HEALTHCARE COMPANY | $126,204.19 |
| GILEAD SCIENCES, INC. | $9,202.58 |
| EMD SERONO, INC. | $249.36 |
| MERCK SHARP & DOHME LLC | $140.24 |
| AXSOME THERAPEUTICS, INC. | $60.45 |
| ABBVIE INC. | $59.03 |
| ASTRAZENECA PHARMACEUTICALS LP | $58.13 |
| PFIZER INC. | $56.23 |
| Other reporting companies | $157.65 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Internal Medicine
- Taxonomy code
- 207R00000X
- Enumeration date
- Apr 14, 2016
- Record updated
- Jul 6, 2020
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- DO, MPH
Reported taxonomies and licenses
207R00000X · Primary
License reported: R9195 TX
207R00000X
License reported: 20A17118 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
303 N Frio StSan Antonio, TX 78207-3034
- Phone
- (210) 688-5792
Mailing address
303 N FRIO STSAN ANTONIO, TX 782073034
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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