DAVID A. OLSON, MD, A PROFESSIONAL CORPORATION
NPI 1891167821
Clinic/Center - Medical Specialty in Oakdale, CA
About David A. Olson, Md, A Professional Corporation NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DAVID A. OLSON, MD, A PROFESSIONAL CORPORATION (NPI 1891167821) is a healthcare organization registered as a medical specialty in Oakdale, California and active in the NPI registry since October 2015. The organization lists David Andrew Olson, Owner/director, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
David A. Olson, Md, A Professional Corporation is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to David A. Olson, MD, A Professional Corporation, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.
Clinicians, nearest first (2)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 A. Olson, MD, A Professional Corporation's NPI number?
The NPI number for David A. Olson, MD, A Professional Corporation is 1891167821. It was assigned to this organization in the NPPES registry on October 29, 2015.
Where is David A. Olson, MD, A Professional Corporation located?
David A. Olson, MD, A Professional Corporation is located at 232 W F St, Oakdale, CA 95361. The listed phone number is (209) 848-2273.
What is David A. Olson, MD, A Professional Corporation's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.
Is David A. Olson, MD, A Professional Corporation enrolled in Medicare?
Yes. David A. Olson, MD, A Professional Corporation is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through David A. Olson, MD, A Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to David A. Olson, MD, A Professional Corporation, in Internal Medicine and Nurse Practitioner. A 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 the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for David A. Olson, MD, A Professional Corporation was last updated on February 23, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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 A. Olson, Md, A Professional Corporation · NPI 1891167821
Medical Specialty organization in Oakdale, California. Organization record, active in the CMS NPPES registry since October 29, 2015.
## Identity
- **NPI:** 1891167821 (Entity type: Organization)
- **Enumerated:** October 29, 2015
- **Primary specialty:** Clinic/Center - Medical Specialty · taxonomy 261QM2500X
- **Organization subpart:** No
- **Authorized official:** David Olson, OWNER/DIRECTOR
## Practice location
- **Address:** 232 W F ST, Oakdale, CA 95361-3844
- **Phone:** (209) 848-2273 · **Fax:** (209) 848-0242
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Internal Medicine (1), Nurse Practitioner (1); 1 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 23, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1891167821) · Data from the CMS NPPES public registry.