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

David Michael Underhill

Individual provider Critical Care Medicine Registered Nurse · NPI 1467978338

David Michael Underhill is registered under Certified Registered Nurse Anesthetist (CRNA) in Chattanooga, Tennessee. Qualified in 2017, 9 years ago. Practices with Anesthesiology Consultants Exchange, PC, a 152-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
9
Licensed in
TN
In the registry since
2017
Specialties on file
2
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Practice location Address checks out

979 E 3rd St Ste C235
Chattanooga, TN 37403-3309
Phone: (423) 602-8400
Show map & directions

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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 APN23308 (TN)
Critical Care Medicine Registered Nurse Taxonomy 163WC0200X · Licence 201167 (TN)

Record details

NPI number1467978338
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedAugust 22, 2017
Last updated in NPPESJanuary 31, 2018

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 Anesthesiology Consultants Exchange, Pc — 152 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 patients51
Services billed 54 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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $41 2 payments · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Anesthesiology Consultants Exchange, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 152 clinicians in the practice; 12 are shown here.

Other providers in Chattanooga