MARA W ROSENBERG MD
NPI 1902396302
Internal Medicine in Portland, OR
About Mara W Rosenberg Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARA W ROSENBERG MD (NPI 1902396302) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (MD230776) and active in the NPI registry since May 2018. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Oregon Health Sciences University School Of Medicine (2020).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Mara W Rosenberg 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
3Medicare enrollment records show Mara Rosenberg reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 2,112 clinicians in this Medicare group
San Francisco, CA 94122
- Reassigned Medicare billing, California enrollment
- 5,544 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 5,645 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
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.
Physician 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.
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 Mara Rosenberg's NPI number?
The NPI number for Mara Rosenberg is 1902396302. It was assigned to this individual provider in the NPPES registry on May 11, 2018.
Where is Mara Rosenberg located?
Mara Rosenberg practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (503) 418-4500.
What is Mara Rosenberg's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Mara Rosenberg enrolled in Medicare?
Yes. Mara Rosenberg 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 Mara Rosenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mara Rosenberg reassigns Medicare benefits to 3 organizations: Regents Of The University Of California (San Francisco, CA), Ucsf Medical Group Business Services (San Francisco, CA) and University Of California San Francisco (San Francisco, CA). 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 Mara Rosenberg'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 Mara Rosenberg was last updated on October 26, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.
# Mara W Rosenberg, MD · NPI 1902396302
Internal Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since May 11, 2018.
## Identity
- **NPI:** 1902396302 (Entity type: Individual)
- **Enumerated:** May 11, 2018
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD230776 (Oregon)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3181 SW SAM JACKSON PARK RD, Portland, OR 97239-3098
- **Phone:** (503) 418-4500
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Regents Of The University Of California (NPI 1235322348, San Francisco, CA); Ucsf Medical Group Business Services (NPI 1477624104, San Francisco, CA); University Of California San Francisco (NPI 1164512851, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Oregon Health Sciences University School Of Medicine, class of 2020
## Record status
- **NPPES last updated:** October 26, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1902396302) · Data from the CMS NPPES public registry.