Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

David Witmer, CRNA

Individual provider Certified Registered Nurse Anesthetist · NPI 1558869875

David Witmer, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Houston, Texas. Qualified in 2017, 9 years ago. Practices with Emergenchealth PLLC, a 1,024-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
9
Licensed in
TX
In the registry since
2018
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Partly verified

Some contact details are missing from the federal record.

1500 Citywest Blvd Ste 300
Houston, TX 77042-2549
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence AP136352 (TX)

Record details

NPI number1558869875
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedFebruary 1, 2018
Last updated in NPPESAugust 3, 2020
Certification dateAugust 3, 2020

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Emergenchealth Pllc — 1024 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 patients158
Services billed 160 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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.

  • Christus Santa Rosa Medical Center Hospital · San Antonio, TX

Colleagues at Emergenchealth PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1024 clinicians in the practice; 12 are shown here.

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