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

Dr. David E Holznagel, MD

Individual provider Diagnostic Radiology Physician · NPI 1700064862

Dr. David E Holznagel, MD practises Diagnostic Radiology in Walla Walla, Washington. Graduated from Geisel School of Medicine at Dartmouth in 2004, 22 years ago. Practices with Integra Imaging Ps, a 125-clinician group and accepts Medicare assignment. Licensed in California and Washington.

Years since qualifying
22
Trained at
Geisel School of Medicine at Dartmouth
Licensed in
CA, WA
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

401 W Poplar St
Walla Walla, WA 99362-2846 Not confirmed with CMS for 12 years — call before visiting
Phone: (509) 525-3320
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence MD60137928 (WA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence A93723 (CA)

Record details

NPI number1700064862
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 31, 2008
Last updated in NPPESJune 4, 2014

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolGEISEL SCHOOL OF MEDICINE AT DARTMOUTH
Graduated 2004 (22 years in practice)
Group practice Integra Imaging Ps — 125 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations14 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 patients1,194
Services billed 3,364 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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. Those with a page here are linked.

Colleagues at Integra Imaging Ps

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 125 clinicians in the practice; 12 are shown here.

Other providers in Walla Walla