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DR. TASHA YVONNE MARENBACH M.D.
NPI 1285926816
Family Medicine in Olympia, WA

Active since May 16, 2011PECOS EnrolledAccepts Medicare Assignment
525 LILLY RD NE # 204, OLYMPIA, WA 98506(360) 493-7230(360) 493-4180 Get Directions Write a Review

NPPES record last updated: March 24, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 24, 2026, Jun 22, 2023, Mar 4, 2016 (3 updates tracked since 2016).

About Dr. Tasha Yvonne Marenbach M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. TASHA YVONNE MARENBACH M.D. (NPI 1285926816) is an individual family medicine provider in Olympia, Washington, licensed in Washington (MD60770417) and active in the NPI registry since May 2011. She is enrolled in Medicare PECOS, is affiliated with Providence Mount Carmel Hospital, and is a graduate of University Of California, Davis School Of Medicine (2007).

NPPES Registry Identity

NPI1285926816
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. TASHA YVONNE MARENBACHCredential: M.D.
Location Address525 LILLY RD NE # 204Olympia, WA 98506-5101
Mailing Address982 E Columbia AveColville, WA 99114-3316 · (866) 747-2455
Phone(360) 493-7230
Fax(360) 493-4180
Sole ProprietorNo
Medical School CMSUniversity Of California, Davis School Of MedicineGraduated 2007
Enumeration DateMay 16, 2011
Last NPPES UpdateMarch 24, 20263 updates tracked since enumeration
NPPES CertifiedMarch 24, 2026
✔ NPI 1285926816 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses✔ Licensed in WA · MD60770417✔ Licensed in CA · A 116641
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
525 LILLY RD NE # 204, Olympia, WA 98506
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter Health, Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.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. Tasha Yvonne Marenbach M.d. 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.

PECOS PAC ID1951579176
PECOS Enrollment IDI20180920002924
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Tasha Marenbach reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Multicare Health System
4.9 mi
Pediatrics
1920 BLACK LAKE BLVD SW
Olympia, WA 98512
  • Reassigned Medicare billing, Washington enrollment
  • 4,383 clinicians in this Medicare group
NPI 1831609775 (360) 534-9222
Providence Health & Services - Washington
252 mi
Critical Access
982 E COLUMBIA AVE
Colville, WA 99114
  • Reassigned Medicare billing, Washington enrollment
  • Also billed through NPI 1003067679 (Washington)
  • 44 clinicians in this Medicare group
NPI 1841442332 (509) 684-2561
Providence Health & Services Washington
252 mi
Family Medicine
1200 E COLUMBIA AVE
Colville, WA 99114
  • Reassigned Medicare billing, Washington enrollment
  • 862 clinicians in this Medicare group
NPI 1083968879 (509) 474-2072

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.

Providence Mount Carmel Hospital

Critical Access Hospitals · Colville, WA
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number501326
Location982 East ColumbiaColville, WA 99114 · Stevens County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98506 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AZRA RAHIM M.D.
Family Medicine
525 LILLY RD NE # 204
OLYMPIA, WA 98506
Thurston County (360) 493-7230

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 Tasha Marenbach's NPI number?

The NPI number for Tasha Marenbach is 1285926816. It was assigned to this individual provider in the NPPES registry on May 16, 2011.

Where is Tasha Marenbach located?

Tasha Marenbach practices at 525 Lilly Rd NE # 204, Olympia, WA 98506. The listed phone number is (360) 493-7230.

What is Tasha Marenbach's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Tasha Marenbach enrolled in Medicare?

Yes. Tasha Marenbach 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 organizations bill Medicare for Tasha Marenbach's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Tasha Marenbach reassigns Medicare benefits to 3 organizations: Multicare Health System (Olympia, WA), Providence Health & Services - Washington (Colville, WA) and Providence Health & Services Washington (Colville, WA). Each 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 Tasha Marenbach's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Tasha Marenbach accept?

Health plans from Ambetter Health, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Tasha Marenbach 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 Tasha Marenbach affiliated with any hospitals?

According to CMS data, Tasha Marenbach is affiliated with Providence Mount Carmel Hospital.

When was this NPI record last updated?

The NPPES record for Tasha Marenbach was last updated on March 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.