AARON J KRAMER MD
NPI 1861843625
Hospitalist in Portland, OR
About Aaron J Kramer Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AARON J KRAMER MD (NPI 1861843625) is an individual hospitalist provider in Portland, Oregon, licensed in Oregon (MD206491) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Asante Rogue Regional Medical Center, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
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
Aaron J Kramer 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
7Medicare enrollment records show Aaron Kramer reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97239
- Reassigned Medicare billing, Oregon enrollment
- 2,212 clinicians in this Medicare group
Hillsboro, OR 97123
- Reassigned Medicare billing, Oregon enrollment
- 691 clinicians in this Medicare group
Depoe Bay, OR 97341
- Reassigned Medicare billing, Oregon enrollment
- 348 clinicians in this Medicare group
Shady Cove, OR 97539
- Reassigned Medicare billing, Oregon enrollment
- Medicare enrollment name: Providence Health & Services Oregon
- 181 clinicians in this Medicare group
Medford, OR 97504
- Reassigned Medicare billing, Oregon enrollment
- 311 clinicians in this Medicare group
Medford, OR 97504
- Reassigned Medicare billing, Oregon enrollment
- 353 clinicians in this Medicare group
Klamath Falls, OR 97601
- Reassigned Medicare billing, Oregon enrollment
- 355 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.
Areas of Expertise CMS Part B claims 5
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Asante Rogue Regional Medical Center
Acute Care Hospitals · Medford, ORProvidence Medford Medical Center
Acute Care Hospitals · Medford, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97239 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
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 Aaron Kramer's NPI number?
The NPI number for Aaron Kramer is 1861843625. It was assigned to this individual provider in the NPPES registry on June 23, 2016.
Where is Aaron Kramer located?
Aaron Kramer practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (503) 494-1164.
What is Aaron Kramer's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Aaron Kramer enrolled in Medicare?
Yes. Aaron Kramer 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 Aaron Kramer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aaron Kramer reassigns Medicare benefits to 7 organizations: University Professional Services (Portland, OR), Tuality Medical Group LLC (Hillsboro, OR), Samaritan Pacific Health Services, Inc. (Depoe Bay, OR), Sisters Of Providence In Oregon (Shady Cove, OR), Providence Health & Services - Oregon (Medford, OR) and 2 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 Aaron Kramer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Aaron Kramer affiliated with any hospitals?
According to CMS data, Aaron Kramer is affiliated with Asante Rogue Regional Medical Center and Providence Medford Medical Center.
When was this NPI record last updated?
The NPPES record for Aaron Kramer was last updated on March 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Aaron J Kramer, MD · NPI 1861843625
Hospitalist physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since June 23, 2016.
## Identity
- **NPI:** 1861843625 (Entity type: Individual)
- **Enumerated:** June 23, 2016
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** MD206491 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 3181 SW SAM JACKSON PARK RD, Portland, OR 97239-3011
- **Phone:** (503) 494-1164 · **Fax:** (503) 494-5502
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): University Professional Services (NPI 1376709535, Portland, OR); Tuality Medical Group LLC (NPI 1639690704, Hillsboro, OR); Samaritan Pacific Health Services, Inc. (NPI 1912257460, Depoe Bay, OR); Sisters Of Providence In Oregon (NPI 1881770808, Shady Cove, OR); Providence Health & Services - Oregon (NPI 1093976243, Medford, OR); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Minnesota Medical School, class of 2016
## Record status
- **NPPES last updated:** March 18, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1861843625) · Data from the CMS NPPES public registry.