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Orthopedic Surgery

Zachary Clarke, MD

Works at hospitals in San Antonio, TX · Texas

Summary

Dr. Zachary Clarke, MD is an orthopedic surgeon at 1200 Brooklyn Ave, San Antonio, TX 78212. Phone: (210) 450-9300. Accepts Medicare assignment. In 2024, Zachary Clarke had 64 Original Medicare patients and 64 services. NPI 1275094682. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Zachary Clarke, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Zachary Clarke accept Medicare assignment?
Yes. Medicare's clinician data says Zachary Clarke 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 Zachary Clarke see?
In 2024, CMS data shows 64 Original Medicare patients and 64 services for Zachary Clarke. This counts Original Medicare only and measures volume, not quality.
What is Zachary Clarke's NPI number?
1275094682. 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 Zachary Clarke, 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 patients64
Services billed to Medicare64
Different services or procedures6
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Replacement of knee joint, both sides of knee (27447)33 services
  2. Replacement of thigh bone and hip joint with prosthesis (27130)16 services
  3. Replacement of knee joint on side of knee (27446)11 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%
  • Arthritis75%
  • High blood pressure59%
  • Diabetes22%
  • Asthma19%
  • Chronic kidney disease17%

Hospitals where Zachary Clarke works

Medicare's Facility Affiliation Data lists Zachary Clarke 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.

Practice locations

Addresses where Zachary Clarke is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Zachary Clarke as a member of these groups (CMS data updated October 2, 2026).

  • University of Texas Health Science Center at San Antonio1,297 clinicians in the group
  • Rise Up Rehab, LLC109 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Texas →

Other orthopedic surgeons in San Antonio

Clinicians with the same Medicare primary specialty in San Antonio, TX — not a recommendation.

All orthopedic surgeons in San Antonio →

Other clinicians in University of Texas Health Science Center at San Antonio

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1275094682
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians