DR. TIANA MIEKO IBARRA YAMAMOTO DO
NPI 1972245397
Family Medicine in Mount Vernon, WA
About Dr. Tiana Mieko Ibarra Yamamoto Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TIANA MIEKO IBARRA YAMAMOTO DO (NPI 1972245397) is an individual family medicine provider in Mount Vernon, Washington, licensed in Washington (OP70040343) and active in the NPI registry since April 2022. She is enrolled in Medicare PECOS, is affiliated with Skagit Valley Hospital, and is a graduate of Pacific Nw Un Of Hs, Col Of Osteopathic Medicine (2022).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Tiana Mieko Ibarra Yamamoto Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Tiana Ibarra Yamamoto reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Mount Vernon, WA 98274
- Reassigned Medicare billing, Washington enrollment
- 463 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Skagit Valley Hospital
Acute Care Hospitals · Mount Vernon, WAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98274 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.
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 Tiana Ibarra Yamamoto's NPI number?
The NPI number for Tiana Ibarra Yamamoto is 1972245397. It was assigned to this individual provider in the NPPES registry on April 7, 2022. The provider is also known as Dr. Tiana Mieko Nading Do.
Where is Tiana Ibarra Yamamoto located?
Tiana Ibarra Yamamoto practices at 901 S 5th St, Mount Vernon, WA 98274. The listed phone number is (360) 814-7300.
What is Tiana Ibarra Yamamoto's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Tiana Ibarra Yamamoto enrolled in Medicare?
Yes. Tiana Ibarra Yamamoto is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Tiana Ibarra Yamamoto's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tiana Ibarra Yamamoto reassigns Medicare benefits to Public Hospital Dist No 1 Skagit (Mount Vernon, 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 Tiana Ibarra Yamamoto's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Tiana Ibarra Yamamoto accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Tiana Ibarra Yamamoto as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Tiana Ibarra Yamamoto affiliated with any hospitals?
According to CMS data, Tiana Ibarra Yamamoto is affiliated with Skagit Valley Hospital.
When was this NPI record last updated?
The NPPES record for Tiana Ibarra Yamamoto was last updated on January 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.
# Dr. Tiana Mieko Ibarra Yamamoto, DO · NPI 1972245397
Family Medicine physician in Mount Vernon, Washington. Individual provider, active in the CMS NPPES registry since April 7, 2022.
## Identity
- **NPI:** 1972245397 (Entity type: Individual)
- **Enumerated:** April 7, 2022
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** OP70040343 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 901 S 5TH ST, Mount Vernon, WA 98274-3942
- **Phone:** (360) 814-7300
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Public Hospital Dist No 1 Skagit (NPI 1023332749, Mount Vernon, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pacific Nw Un Of Hs, Col Of Osteopathic Medicine, class of 2022
## Record status
- **NPPES last updated:** January 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1972245397) · Data from the CMS NPPES public registry.