DAVID CHRISTOPHER HARMON MD, MPH
NPI 1104144930
Internal Medicine in Portland, OR
About David Christopher Harmon Md, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID CHRISTOPHER HARMON MD, MPH (NPI 1104144930) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (MD162329) and active in the NPI registry since May 2010. He is enrolled in Medicare PECOS, is affiliated with Ohsu Hospital And Clinics, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
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
David Christopher Harmon Md, Mph 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 David Harmon reassigns Medicare billing to 4 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
- 78 clinicians in this Medicare group
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
Albany, OR 97321
- Reassigned Medicare billing, Oregon enrollment
- 522 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 4
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.
Ohsu Hospital And Clinics
Acute Care Hospitals · Portland, ORGood Samaritan Regional Medical Center
Acute Care Hospitals · Corvallis, 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.
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 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 David Harmon's NPI number?
The NPI number for David Harmon is 1104144930. It was assigned to this individual provider in the NPPES registry on May 4, 2010.
Where is David Harmon located?
David Harmon practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (503) 494-8211.
What is David Harmon's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is David Harmon enrolled in Medicare?
Yes. David Harmon 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 David Harmon's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Harmon reassigns Medicare benefits to 4 organizations: Oregon Health & Science University (Portland, OR), University Professional Services (Portland, OR), Tuality Medical Group LLC (Hillsboro, OR) and Good Samaritan Hospital Corvallis (Albany, 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 David Harmon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is David Harmon affiliated with any hospitals?
According to CMS data, David Harmon is affiliated with Ohsu Hospital And Clinics and Good Samaritan Regional Medical Center.
When was this NPI record last updated?
The NPPES record for David Harmon was last updated on March 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# David Christopher Harmon, MD, MPH · NPI 1104144930
Internal Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since May 4, 2010.
## Identity
- **NPI:** 1104144930 (Entity type: Individual)
- **Enumerated:** May 4, 2010
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** MD162329 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 3181 SW SAM JACKSON PARK RD, Portland, OR 97239-3011
- **Phone:** (503) 494-8211
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Oregon Health & Science University (NPI 1609824010, Portland, OR); University Professional Services (NPI 1376709535, Portland, OR); Tuality Medical Group LLC (NPI 1639690704, Hillsboro, OR); Good Samaritan Hospital Corvallis (NPI 1063779205, Albany, OR) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Kansas School Of Med, class of 2010
## Record status
- **NPPES last updated:** March 13, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1104144930) · Data from the CMS NPPES public registry.