MARY NICOLE NIENOW BIRCH MD
NPI 1972131076
Obstetrics & Gynecology in Seattle, WA
About Mary Nicole Nienow Birch Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARY NICOLE NIENOW BIRCH MD (NPI 1972131076) is an individual obstetrics & gynecology provider in Seattle, Washington, licensed in Washington (MD61533991) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2020).
NPPES Registry Identity
Specialties & Licenses 2
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
Mary Nicole Nienow Birch Md 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 Mary Nienow Birch reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 98195 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.
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
SEATTLE, WA 98195
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 Mary Nienow Birch's NPI number?
The NPI number for Mary Nienow Birch is 1972131076. It was assigned to this individual provider in the NPPES registry on April 1, 2020. The provider is also known as Mary Nicole Nienow Birch MD.
Where is Mary Nienow Birch located?
Mary Nienow Birch practices at 1959 NE Pacific St, Seattle, WA 98195. The listed phone number is (206) 520-5000.
What is Mary Nienow Birch's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Mary Nienow Birch enrolled in Medicare?
Yes. Mary Nienow Birch 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 Mary Nienow Birch's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mary Nienow Birch reassigns Medicare benefits to The Association Of University Physicians (Seattle, 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 Mary Nienow Birch's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mary Nienow Birch accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Mary Nienow Birch 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.
When was this NPI record last updated?
The NPPES record for Mary Nienow Birch was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days 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.
# Mary Nicole Nienow Birch, MD · NPI 1972131076
Obstetrics & Gynecology physician in Seattle, Washington. Individual provider, active in the CMS NPPES registry since April 1, 2020.
## Identity
- **NPI:** 1972131076 (Entity type: Individual)
- **Enumerated:** April 1, 2020
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD61533991 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1959 NE PACIFIC ST, Seattle, WA 98195-7232
- **Phone:** (206) 520-5000
## 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:** The Association Of University Physicians (NPI 1023041159, Seattle, WA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** October 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1972131076) · Data from the CMS NPPES public registry.