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Pathology

Zachary Sussman, MD

Works at hospitals in San Antonio, TX · San Marcos, TX · Fredericksburg, TX · Texas

Summary

Dr. Zachary Sussman, MD is a pathologist at 1020 S State Hwy 16, Frederickburg, TX 78624. Phone: (830) 990-1555. Accepts Medicare assignment. In 2024, Zachary Sussman had 367 Original Medicare patients and 926 services. NPI 1295910909. 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 Sussman, 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 Sussman accept Medicare assignment?
Yes. Medicare's clinician data says Zachary Sussman 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 Sussman see?
In 2024, CMS data shows 367 Original Medicare patients and 926 services for Zachary Sussman. This counts Original Medicare only and measures volume, not quality.
What is Zachary Sussman's NPI number?
1295910909. 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 Sussman, 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 patients367
Services billed to Medicare926
Different services or procedures20
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Pathology examination of tissue using a microscope, intermediate complexity (88305)575 services
  2. Special stained specimen slides to examine tissue, each additional procedure (88341)64 services
  3. Pathology examination of tissue using a microscope, moderately high complexity (88307)62 services
  4. Pathology examination of tissue using a microscope, moderately low complexity (88304)49 services
  5. Special stained specimen slides to examine tissue, initial procedure (88342)35 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 cholesterol66%
  • High blood pressure63%
  • Arthritis43%
  • Diabetes31%
  • Chronic kidney disease28%
  • Anxiety22%

Hospitals where Zachary Sussman works

Medicare's Facility Affiliation Data lists Zachary Sussman 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 Sussman is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Zachary Sussman as a member of this group (CMS data updated October 2, 2026).

  • Pathology Associates of San Antonio, L.L.P.24 clinicians in the group

Specialties

Find other Pathology doctors in Texas →

Other pathologists in Frederickburg

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

All pathologists in Frederickburg →

Other clinicians in Pathology Associates of San Antonio, L.L.P.

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

Clinician information

CredentialMD
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1295910909
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