JONATHAN AMAR GREENBERG MD
NPI 1659834281
Internal Medicine - Critical Care Medicine in Portland, OR
About Jonathan Amar Greenberg Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JONATHAN AMAR GREENBERG MD (NPI 1659834281) is an individual critical care medicine provider in Portland, Oregon, licensed in Oregon (MD220682) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Providence St Vincent Medical Center, and maintains a secondary practice location in Portland.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Jonathan Amar Greenberg 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 Jonathan Greenberg reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97225
- Reassigned Medicare billing, Oregon enrollment
- 1,501 clinicians in this Medicare group
Portland, OR 97225
- Reassigned Medicare billing, Oregon enrollment
- 753 clinicians in this Medicare group
Portland, OR 97210
- Reassigned Medicare billing, Oregon enrollment
- 1,248 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Providence St Vincent Medical Center
Acute Care Hospitals · Portland, ORLegacy Emanuel Medical Center
Acute Care Hospitals · Portland, ORAdventist Health Tillamook
Critical Access Hospitals · Tillamook, ORColumbia Memorial Hospital
Critical Access Hospitals · Astoria, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97225 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 97225
PORTLAND, OR 97225
PORTLAND, OR 97225
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 Jonathan Greenberg's NPI number?
The NPI number for Jonathan Greenberg is 1659834281. It was assigned to this individual provider in the NPPES registry on April 10, 2019.
Where is Jonathan Greenberg located?
Jonathan Greenberg practices at 9205 SW Barnes Rd, Portland, OR 97225. The listed phone number is (503) 216-3194.
What is Jonathan Greenberg's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Jonathan Greenberg enrolled in Medicare?
Yes. Jonathan Greenberg 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 Jonathan Greenberg's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jonathan Greenberg reassigns Medicare benefits to 3 organizations: Providence Health & Services Oregon (Portland, OR), Providence Health & Services - Oregon (Portland, OR) and Legacy Clinics LLC (Portland, OR). 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 Jonathan Greenberg's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Jonathan Greenberg affiliated with any hospitals?
According to CMS data, Jonathan Greenberg is affiliated with Providence St Vincent Medical Center, Legacy Emanuel Medical Center, Adventist Health Tillamook and Columbia Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Jonathan Greenberg was last updated on September 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Jonathan Amar Greenberg, MD · NPI 1659834281
Critical Care Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since April 10, 2019.
## Identity
- **NPI:** 1659834281 (Entity type: Individual)
- **Enumerated:** April 10, 2019
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** MD220682 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 9205 SW BARNES RD, Portland, OR 97225-6603
- **Phone:** (503) 216-3194
## 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): Providence Health & Services Oregon (NPI 1053403394, Portland, OR); Providence Health & Services - Oregon (NPI 1114015971, Portland, OR); Legacy Clinics LLC (NPI 1902827272, Portland, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Nebraska College Of Medicine, class of 2019
## Record status
- **NPPES last updated:** September 30, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1659834281) · Data from the CMS NPPES public registry.