DENNIS PATRICK LEWIS,MD,
NPI 1710183140
Family Medicine in Valencia, CA
About Dennis Patrick Lewis,md, NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS PATRICK LEWIS,MD, (NPI 1710183140) is a healthcare organization registered as a family medicine in Valencia, California and active in the NPI registry since June 2007. The organization lists Dennis Patrick Lewis, Md, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dennis Patrick Lewis,md, 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 Dennis Patrick Lewis,md,, which bills Medicare for the services they deliver. Of these, 2 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 Dennis Patrick Lewis,md,'s NPI number?
The NPI number for Dennis Patrick Lewis,md, is 1710183140. It was assigned to this organization in the NPPES registry on June 22, 2007.
Where is Dennis Patrick Lewis,md, located?
Dennis Patrick Lewis,md, is located at 23823 Valencia Blvd Suite #160, Valencia, CA 91355. The listed phone number is (661) 254-0026.
What is Dennis Patrick Lewis,md,'s specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Dennis Patrick Lewis,md, enrolled in Medicare?
Yes. Dennis Patrick Lewis,md, is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Dennis Patrick Lewis,md,?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Dennis Patrick Lewis,md,, in Family Practice 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, 2 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 Dennis Patrick Lewis,md, was last updated on November 13, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Dennis Patrick Lewis,md, · NPI 1710183140
Family Medicine organization in Valencia, California. Organization record, active in the CMS NPPES registry since June 22, 2007.
## Identity
- **NPI:** 1710183140 (Entity type: Organization)
- **Enumerated:** June 22, 2007
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **Organization subpart:** No
- **Authorized official:** Dennis Lewis, MD
## Practice location
- **Address:** 23823 VALENCIA BLVD, SUITE #160, Valencia, CA 91355-9512
- **Phone:** (661) 254-0026 · **Fax:** (661) 254-1773
## 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: Family Practice (1), Nurse Practitioner (1); 2 practice at this address · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 13, 2018
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Source: [NPI Profile](https://npiprofile.com/npi/1710183140) · Data from the CMS NPPES public registry.