DR. CLAUDIA D OSTERMEYER MD
NPI 1891867800
Internal Medicine in Portland, OR
About Dr. Claudia D Ostermeyer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. CLAUDIA D OSTERMEYER MD (NPI 1891867800) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (MD17193) and active in the NPI registry since November 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1984).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
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. Claudia D Ostermeyer 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 Claudia Ostermeyer reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Gresham, OR 97030
- Reassigned Medicare billing, Oregon and Washington enrollments
- Medicare enrollment name: Kaiser Foundation Health Plan Of The Northwest
- Also billed through NPI 1871848457 (Washington)
- 3,207 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 97233 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.
PORTLAND, OR 97233
PORTLAND, OR 97233
PORTLAND, OR 97233
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 Claudia Ostermeyer's NPI number?
The NPI number for Claudia Ostermeyer is 1891867800. It was assigned to this individual provider in the NPPES registry on November 14, 2006. The provider is also known as Dr. Claudia Bray MD.
Where is Claudia Ostermeyer located?
Claudia Ostermeyer practices at 19500 SE Stark St, Portland, OR 97233. The listed phone number is (503) 669-3900.
What is Claudia Ostermeyer's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Claudia Ostermeyer enrolled in Medicare?
Yes. Claudia Ostermeyer 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 Claudia Ostermeyer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Claudia Ostermeyer reassigns Medicare benefits to Sapphire At Gresham Rehab, LLC (Gresham, OR). 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 Claudia Ostermeyer'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 Claudia Ostermeyer was last updated on April 17, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.
# Dr. Claudia D Ostermeyer, MD · NPI 1891867800
Internal Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since November 14, 2006.
## Identity
- **NPI:** 1891867800 (Entity type: Individual)
- **Enumerated:** November 14, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD17193 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 19500 SE STARK ST, Portland, OR 97233-5757
- **Phone:** (503) 669-3900
## 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:** Sapphire At Gresham Rehab, LLC (NPI 1033740899, Gresham, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1984
## Record status
- **NPPES last updated:** April 17, 2009
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Source: [NPI Profile](https://npiprofile.com/npi/1891867800) · Data from the CMS NPPES public registry.