RONALD JEFFREY DWORKIN MD
NPI 1154327997
Internal Medicine - Infectious Disease in Portland, OR
About Ronald Jeffrey Dworkin Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RONALD JEFFREY DWORKIN MD (NPI 1154327997) is an individual infectious disease provider in Portland, Oregon, licensed in Oregon (MD16576) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Mckenzie-willamette Medical Center, and is a graduate of Icahn School Of Medicine At Mount Sinai (1984).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Ronald Jeffrey Dworkin 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
4Medicare enrollment records show Ronald Dworkin reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97213
- Reassigned Medicare billing, Oregon enrollment
- 1,501 clinicians in this Medicare group
Olympia, WA 98506
- Reassigned Medicare billing, Oregon enrollment
- 27 clinicians in this Medicare group
Torrance, CA 90503
- Reassigned Medicare billing, Oregon enrollment
- 21 clinicians in this Medicare group
Brentwood, TN 37027
- Reassigned Medicare billing, Oregon enrollment
- 198 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mckenzie-Willamette Medical Center
Acute Care Hospitals · Springfield, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97213 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 97213
PORTLAND, OR 97213
PORTLAND, OR 97213
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 Ronald Dworkin's NPI number?
The NPI number for Ronald Dworkin is 1154327997. It was assigned to this individual provider in the NPPES registry on June 27, 2005.
Where is Ronald Dworkin located?
Ronald Dworkin practices at 5050 NE Hoyt St Ste 540, Portland, OR 97213. The listed phone number is (503) 215-6601.
What is Ronald Dworkin's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Ronald Dworkin enrolled in Medicare?
Yes. Ronald Dworkin 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 Ronald Dworkin's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Dworkin reassigns Medicare benefits to 4 organizations: Providence Health & Services - Oregon (Portland, OR), Providence Health & Services Washington (Olympia, WA), Providence Medical Institute (Torrance, CA) and Mckenzie Physician Services LLC (Brentwood, TN). 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 Ronald Dworkin's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ronald Dworkin accept?
Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Ronald Dworkin 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.
Is Ronald Dworkin affiliated with any hospitals?
According to CMS data, Ronald Dworkin is affiliated with Mckenzie-Willamette Medical Center.
When was this NPI record last updated?
The NPPES record for Ronald Dworkin was last updated on January 15, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Ronald Jeffrey Dworkin, MD · NPI 1154327997
Infectious Disease physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since June 27, 2005.
## Identity
- **NPI:** 1154327997 (Entity type: Individual)
- **Enumerated:** June 27, 2005
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** MD16576 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 5050 NE HOYT ST, STE 540, Portland, OR 97213-2985
- **Phone:** (503) 215-6601 · **Fax:** (503) 215-6727
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Providence Health & Services - Oregon (NPI 1609117282, Portland, OR); Providence Health & Services Washington (NPI 1174744304, Olympia, WA); Providence Medical Institute (NPI 1760425862, Torrance, CA); Mckenzie Physician Services LLC (NPI 1316909054, Brentwood, TN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Icahn School Of Medicine At Mount Sinai, class of 1984
## Record status
- **NPPES last updated:** January 15, 2021
- **Other identifiers:** Medicaid 010046 (OR)
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Source: [NPI Profile](https://npiprofile.com/npi/1154327997) · Data from the CMS NPPES public registry.