MR. MARK ANTHONY DAVIS PMHNP-BC
NPI 1265296412
Nurse Practitioner - Psychiatric/Mental Health in Walla Walla, WA
About Mr. Mark Anthony Davis Pmhnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MARK ANTHONY DAVIS PMHNP-BC (NPI 1265296412) is an individual psychiatric/mental health provider in Walla Walla, Washington, licensed in Washington (AP61526319) and active in the NPI registry since February 2024. He is enrolled in Medicare PECOS and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Mark Anthony Davis Pmhnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Mark Davis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Yakima, WA 98902
- Reassigned Medicare billing, Washington enrollment
- 82 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 99362 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALLA WALLA, WA 99362
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Mark Davis's NPI number?
The NPI number for Mark Davis is 1265296412. It was assigned to this individual provider in the NPPES registry on February 8, 2024.
Where is Mark Davis located?
Mark Davis practices at 1520 Kelly Pl, Walla Walla, WA 99362. The listed phone number is (509) 575-4084.
What is Mark Davis's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Mark Davis enrolled in Medicare?
Yes. Mark Davis is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Mark Davis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Davis reassigns Medicare benefits to Comprehensive Healthcare (Yakima, WA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Davis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mark Davis was last updated on February 8, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Mr. Mark Anthony Davis, PMHNP-BC · NPI 1265296412
Psychiatric/Mental Health physician in Walla Walla, Washington. Individual provider, active in the CMS NPPES registry since February 8, 2024.
## Identity
- **NPI:** 1265296412 (Entity type: Individual)
- **Enumerated:** February 8, 2024
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** AP61526319 (Washington)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1520 KELLY PL, Walla Walla, WA 99362-8607
- **Phone:** (509) 575-4084
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Comprehensive Healthcare (NPI 1073527453, Yakima, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** February 8, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1265296412) · Data from the CMS NPPES public registry.