DR. STEPHEN C HOLMES MD
NPI 1952366775
Anesthesiology in Portland, OR
About Dr. Stephen C Holmes Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. STEPHEN C HOLMES MD (NPI 1952366775) is an individual anesthesiology provider in Portland, Oregon, licensed in Oregon (MD18705) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, is affiliated with Providence St Vincent Medical Center, and is a graduate of Oregon Health Sciences University School Of Medicine (1990).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 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
Dr. Stephen C Holmes 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 Stephen Holmes reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Portland, OR 97205
- Reassigned Medicare billing, Oregon enrollment
- 271 clinicians in this Medicare group
Portland, OR 97205
- Reassigned Medicare billing, Oregon enrollment
- 1,501 clinicians in this Medicare group
Portland, OR 97213
- Reassigned Medicare billing, Oregon enrollment
- 419 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 7
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.
Providence St Vincent Medical Center
Acute Care Hospitals · Portland, OROther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Stephen Holmes's NPI number?
The NPI number for Stephen Holmes is 1952366775. It was assigned to this individual provider in the NPPES registry on April 18, 2006.
Where is Stephen Holmes located?
Stephen Holmes practices at 707 SW Washington St Suite 700, Portland, OR 97205. The listed phone number is (503) 299-9906.
What is Stephen Holmes's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Stephen Holmes enrolled in Medicare?
Yes. Stephen Holmes 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 Stephen Holmes's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Holmes reassigns Medicare benefits to 3 organizations: Oregon Anesthesiology Group PC (Portland, OR), Providence Health & Services - Oregon (Portland, OR) and Hospitalist Medicine Physicians Of Washington - Tcs (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 Stephen Holmes's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Stephen Holmes affiliated with any hospitals?
According to CMS data, Stephen Holmes is affiliated with Providence St Vincent Medical Center.
When was this NPI record last updated?
The NPPES record for Stephen Holmes was last updated on October 15, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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. Stephen C Holmes, MD · NPI 1952366775
Anesthesiology physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since April 18, 2006.
## Identity
- **NPI:** 1952366775 (Entity type: Individual)
- **Enumerated:** April 18, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** MD18705 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 707 SW WASHINGTON ST, SUITE 700, Portland, OR 97205-3536
- **Phone:** (503) 299-9906 · **Fax:** (503) 225-9002
## 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): Oregon Anesthesiology Group PC (NPI 1477527786, Portland, OR); Providence Health & Services - Oregon (NPI 1235479643, Portland, OR); Hospitalist Medicine Physicians Of Washington - Tcs (NPI 1649816380, Portland, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Oregon Health Sciences University School Of Medicine, class of 1990
## Record status
- **NPPES last updated:** October 15, 2018
- **Other identifiers:** Other 050041436 (OR); Medicaid 8164337 (WA); Medicaid 065685 (OR)
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Source: [NPI Profile](https://npiprofile.com/npi/1952366775) · Data from the CMS NPPES public registry.