DAVID KNOWLTON MD
NPI 1902975741
Family Medicine in Springfield, OR
About David Knowlton Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID KNOWLTON MD (NPI 1902975741) is an individual family medicine provider in Springfield, Oregon, licensed in Oregon (MD20529) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1990).
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
David Knowlton 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 Reassignment
Medicare enrollment records show David Knowlton reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Springfield, OR 97477
- Reassigned Medicare billing, Oregon enrollment
- 14 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 9
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 97477 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
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 Knowlton's NPI number?
The NPI number for David Knowlton is 1902975741. It was assigned to this individual provider in the NPPES registry on November 7, 2006.
Where is David Knowlton located?
David Knowlton practices at 1435 G St, Springfield, OR 97477. The listed phone number is (541) 735-9420.
What is David Knowlton's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is David Knowlton enrolled in Medicare?
Yes. David Knowlton 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 organization bills Medicare for David Knowlton's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Knowlton reassigns Medicare benefits to G Street Integrated Health (Springfield, OR). The 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 Knowlton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does David Knowlton accept?
Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Regence BlueCross BlueShield of Oregon list David Knowlton 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.
When was this NPI record last updated?
The NPPES record for David Knowlton was last updated on May 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# David Knowlton, MD · NPI 1902975741
Family Medicine physician in Springfield, Oregon. Individual provider, active in the CMS NPPES registry since November 7, 2006.
## Identity
- **NPI:** 1902975741 (Entity type: Individual)
- **Enumerated:** November 7, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** MD20529 (Oregon)
- **Sole proprietor:** No
## Practice location
- **Address:** 1435 G ST, Springfield, OR 97477-4113
- **Phone:** (541) 735-9420 · **Fax:** (541) 747-9870
## 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:** G Street Integrated Health (NPI 1730734161, Springfield, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1990
## Record status
- **NPPES last updated:** May 25, 2022
- **Other identifiers:** Medicaid 150376 (OR)
---
Source: [NPI Profile](https://npiprofile.com/npi/1902975741) · Data from the CMS NPPES public registry.