Doctor Profile

Primary Care · Family Practice

Michael J. Diamond

MD · Family Practice · University Of Texas Medical School At San Antonio
200 W OLLIE ST
Llano, TX 78643
✓ Accepts Medicare 🎓 18 Years Practicing
130
Medicare Patients / yr
3
Procedures Billed
18
Years Practicing
2
Hospital Affiliations
Data Source: Identity from NPPES (2026). Procedure & patient volume from CMS Medicare Provider Utilization & Payment Data (2023). Hospital affiliations from CMS Physician Compare. We display publicly reported data — no personal information required to view any of it.
Reviewed by: Wes Ward, Founder & Data Lead • View our methodology

Important: We are not affiliated with Medicare, CMS, or Michael J. Diamond's practice. This page displays publicly available CMS data to help you research Medicare providers. We do not sell insurance or represent any insurance company. For official enrollment and complete plan information, visit Medicare.gov or call 1-800-MEDICARE.

Medicare Plans That Cover Dr. Diamond

See which plans Dr. Diamond accepts

We're pulling plan acceptance data directly from insurance carrier provider directories. Until that feed is live for Texas, the fastest way to find a Medicare plan that covers Dr. Diamond is to compare every Medicare Advantage and Part D plan available near 78643, TX — the Family Practice's office can quickly confirm which of the top local plans they accept.

Compare Medicare Plans near 78643, TX →

Or call the office at (325) 247-5040 to confirm acceptance directly.

What Dr. Diamond Does

Dr. Diamond served 130 Medicare patients across 142 services in the latest CMS reporting year. That's 79% below the average Family Practice in Texas (616 patients across 5,371 doctors).

ProcedureServicesMedicare Patients
Emergency department visit with moderate level of medical decision making (99284)5754
Emergency department visit with high level of medical decision making (99285)4743
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)3833

How to read this: "Services" are the total times Dr. Diamond billed Medicare for each procedure in the latest reporting year. "Patients" counts unique Medicare beneficiaries. Procedures are shown in plain English; the underlying HCPCS codes are available on request.

Hospital Affiliations

Dr. Diamond is affiliated with 2 hospitals according to CMS Physician Compare. Below are the 2 hospitals with full quality profiles on our site. Hospital network status depends on your Medicare Advantage plan — always verify before enrolling.

Frio Regional Hospital

Pearsall, TX
Rating not available

Medina Regional Hospital

Hondo, TX
Rating not available

Practice Location & Telehealth Readiness

Dr. Diamond practices at the address below. If you're evaluating Medicare coverage, location matters for in-network access and — when Dr. Diamond offers telehealth — broadband availability at your home matters for virtual visits.

Address: 200 W OLLIE ST, Llano, TX 78643
Phone: (325) 247-5040

Area Safety Grade

D-

Block-level crime analysis from CrimeGrade.org.

Practice Accessibility

28 min

Average commute time in this zip · 86% of residents drive to work. Practical context for patients deciding whether to make the trip. See the full neighborhood profile at BestNeighborhood.org.

Telehealth Readiness

85.7463

Households with fiber broadband — important for reliable virtual visits. Check your address at ISPReports.org.

Get directions on Google Maps →

Other Primary Care Doctors near 78643, TX

If Dr. Diamond isn't accepting new patients or isn't in your plan's network, these are the closest primary care doctors near 78643, TX:

DoctorSpecialtyMedicare Patients / yrDistance
Mohamed FaheidFamily Practice—2.0 mi
David B. UdallFamily Practice1272.0 mi
Robert J. GrumboFamily Practice362.0 mi
Samuel D. SmithPhysician Assistant—2.4 mi
Clayton J. WilkersonPhysician Assistant902.4 mi

View all primary care doctors near 78643, TX →

How to Use This Information

Choosing a Medicare plan that covers Dr. Diamond takes three steps:

Compare Medicare Plans near 78643, TX → All Doctors near 78643, TX

Michael J. Diamond: Common Questions

Does Dr. Diamond accept Medicare?
Yes. Dr. Diamond is enrolled with Medicare and listed in the CMS Provider Enrollment, Chain, and Ownership System (PECOS). Whether a specific Medicare Advantage plan covers Dr. Diamond depends on that plan's provider network. Compare Medicare plans near 78643, TX →
Where is Dr. Diamond's office?
Dr. Diamond practices at 200 W OLLIE ST, Llano, TX 78643. Phone: (325) 247-5040.
What Medicare plans does Dr. Diamond accept?
Original Medicare (Parts A & B) is accepted. Medicare Advantage plan acceptance varies by carrier and plan year. Call the office at (325) 247-5040 to confirm your specific plan is accepted, or compare all Medicare plans near 78643, TX to see available options.
Does Dr. Diamond offer telehealth visits?
CMS does not currently list Dr. Diamond as offering telehealth. Call the office at (325) 247-5040 to confirm whether virtual visits are available.
How experienced is Dr. Diamond?
Dr. Diamond graduated in 2008 and has been practicing for approximately 18 years. In the latest CMS reporting year, Dr. Diamond treated 130 Medicare patients across 3 distinct procedure types.
How do I know if Dr. Diamond is in-network for my Medicare plan?
Network status varies by plan. The best verification steps: (1) check your plan's provider directory at the carrier's website, (2) call the office at (325) 247-5040 and ask which plans they currently accept, and (3) call the number on the back of your Medicare card. Print our doctor questions checklist →

About the Reviewer

Wes Ward

Wes Ward

Founder & Data Lead

Wes Ward reviews all doctor profiles and methodology for data accuracy. Every Medicare provider page on this site — including the utilization statistics, hospital affiliations, and geocoded practice address — goes through his data-validation pipeline before publication. We display only publicly available CMS data; you never need to enter personal information to see any of it.

With 25+ years in data analytics — including work with highly regulated genomic data at Ancestry.com — Wes brings enterprise-level rigor to healthcare transparency. He is also a co-founder of BestNeighborhood.org (neighborhood data), CrimeGrade.org (block-level safety analytics), and ISPReports.org (broadband availability for telehealth). Those sister sites power the location and telehealth-readiness context on this page.

View full profile → • LinkedIn

Data sources: CMS NPPES (2026), CMS Medicare Provider Utilization & Payment Data (2023), CMS Physician Compare, CrimeGrade.org, BestNeighborhood.org, ISPReports.org. This page is for informational purposes only. Always verify coverage directly with the plan and practice. Read our full methodology → • Privacy policy

Medicare Resources

Choosing the right Medicare plan involves more than just doctor coverage. These guides help you evaluate the full picture:

Medicare Plans for Conditions Treated by Primary Care Specialists

See which Medicare plans score highest for conditions commonly managed by this specialty in 78643, TX:

Does your Medicare plan cover Dr. Diamond?

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