Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mary G Hartzog, RN, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1598929036

Mary G Hartzog, RN, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Temple, Texas. Qualified in 2008, 18 years ago. Practices with Endo Sedation LLC, a 283-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
18
Licensed in
TX
In the registry since
2008
Specialties on file
2
What do these letters mean?
RN — Registered Nurse
A licensed nurse who completed a nursing degree and passed the NCLEX-RN examination.
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

2401 S 31st St
Temple, TX 76508-0001
Phone: (254) 724-2111
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3801 N Lamar Blvd, Austin, TX 78756-4080 — (512) 750-1348

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence AP116926 (TX)
Certified Registered Nurse Anesthetist Taxonomy 367500000X · Licence 697733 (TX)

Record details

NPI number1598929036
Entity typeIndividual (Type 1)
GenderFemale
Credentials RN , CRNA
Sole proprietorNo
NPI enumeratedJuly 14, 2008
Last updated in NPPESNovember 16, 2022
Certification dateNovember 16, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2008 (18 years in practice)
Group practice Endo Sedation Llc — 283 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients50
Services billed 50 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Endo Sedation LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 283 clinicians in the practice; 12 are shown here.

Other providers in Temple