DR. KAREN S HIMEBAUGH MD
NPI 1447252507
Obstetrics & Gynecology in Federal Way, WA
About Dr. Karen S Himebaugh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KAREN S HIMEBAUGH MD (NPI 1447252507) is an individual obstetrics & gynecology provider in Federal Way, Washington, licensed in Washington (MD60967563) and active in the NPI registry since June 2005. She is enrolled in Medicare PECOS, maintains 5 additional practice locations, and is a graduate of Other (1985).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 5
Other Identifiers 6
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. Karen S Himebaugh 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 Reassignments
14Medicare enrollment records show Karen Himebaugh reassigns Medicare billing to 14 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Silverdale, WA 98383
- Reassigned Medicare billing, Washington enrollment
- 223 clinicians in this Medicare group
Lebanon, OR 97355
- Reassigned Medicare billing, Oregon enrollment
- Medicare enrollment name: Mid-Valley Healthcare Inc
- Also billed through NPI 1518347608 (Oregon)
- 416 clinicians in this Medicare group
Butte, MT 59701
- Reassigned Medicare billing, Montana enrollment
- 278 clinicians in this Medicare group
Bozeman, MT 59718
- Reassigned Medicare billing, Montana enrollment
- Medicare enrollment name: Billings Clinic
- 1,264 clinicians in this Medicare group
Casper, WY 82601
- Reassigned Medicare billing, Wyoming enrollment
- 17 clinicians in this Medicare group
Casper, WY 82601
- Reassigned Medicare billing, Wyoming enrollment
- 54 clinicians in this Medicare group
Casper, WY 82601
- Reassigned Medicare billing, Wyoming enrollment
- 16 clinicians in this Medicare group
Loveland, CO 80538
- Reassigned Medicare billing, Colorado enrollment
- 2,596 clinicians in this Medicare group
Lafayette, CO 80026
- Reassigned Medicare billing, Colorado enrollment
- 1,270 clinicians in this Medicare group
Thornton, CO 80023
- Reassigned Medicare billing, Colorado enrollment
- 165 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 98003 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FEDERAL WAY, WA 98003
FEDERAL WAY, WA 98003
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 Karen Himebaugh's NPI number?
The NPI number for Karen Himebaugh is 1447252507. It was assigned to this individual provider in the NPPES registry on June 2, 2005.
Where is Karen Himebaugh located?
Karen Himebaugh practices at 34709 9th Ave S Ste B500, Federal Way, WA 98003. The listed phone number is (253) 944-6950.
What is Karen Himebaugh's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Karen Himebaugh enrolled in Medicare?
Yes. Karen Himebaugh 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 Karen Himebaugh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Himebaugh reassigns Medicare benefits to 14 organizations: Obhg Washington, PC (Silverdale, WA), Midv-Valley Healthcare, Inc. (Lebanon, OR), Scl Health Medical Group-Butte LLC (Butte, MT), Billings Cinic (Bozeman, MT), Casper Obstetrical And Gynecological Associates PC (Casper, WY) and 9 more organizations, listed in the Medicare section above. 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 Karen Himebaugh's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Himebaugh accept?
Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Montana, BridgeSpan Health Company, Cigna Healthcare and Moda Health Plan, Inc. and 7 other insurers list Karen Himebaugh 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 Karen Himebaugh was last updated on July 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Karen S Himebaugh, MD · NPI 1447252507
Obstetrics & Gynecology physician in Federal Way, Washington. Individual provider, active in the CMS NPPES registry since June 2, 2005.
## Identity
- **NPI:** 1447252507 (Entity type: Individual)
- **Enumerated:** June 2, 2005
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MD60967563 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 34709 9TH AVE S STE B500, Federal Way, WA 98003-6789
- **Phone:** (253) 944-6950 · **Fax:** (253) 426-6344
## 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:** 14 organizations under Medicare reassignment (form CMS-855R): Obhg Washington, PC (NPI 1962729525, Silverdale, WA); Midv-Valley Healthcare, Inc. (NPI 1326304577, Lebanon, OR); Scl Health Medical Group-Butte LLC (NPI 1477869600, Butte, MT); Billings Cinic (NPI 1215660840, Bozeman, MT); Casper Obstetrical And Gynecological Associates PC (NPI 1134272917, Casper, WY); and 9 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1985
## Record status
- **NPPES last updated:** July 6, 2026
- **Other identifiers:** Medicaid 3818669 (TN); Medicaid T06252B (TN); Other 3159742 (TN); and 3 more
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Source: [NPI Profile](https://npiprofile.com/npi/1447252507) · Data from the CMS NPPES public registry.