DENNIS R. HOLMES, MD, INC
NPI 1356633978
Surgery in Los Angeles, CA
About Dennis R. Holmes, Md, Inc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS R. HOLMES, MD, INC (NPI 1356633978) is a healthcare organization registered as a surgery in Los Angeles, California and active in the NPI registry since May 2011. The organization lists Dennis R Holmes, Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dennis R. Holmes, Md, Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by November 30, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Dennis R. Holmes, MD, Inc, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 R. Holmes, MD, Inc's NPI number?
The NPI number for Dennis R. Holmes, MD, Inc is 1356633978. It was assigned to this organization in the NPPES registry on May 15, 2011.
Where is Dennis R. Holmes, MD, Inc located?
Dennis R. Holmes, MD, Inc is located at 1513 S Grand Ave, Los Angeles, CA 90015. The listed phone number is (213) 742-5784.
What is Dennis R. Holmes, MD, Inc's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Dennis R. Holmes, MD, Inc enrolled in Medicare?
Yes. Dennis R. Holmes, MD, Inc is registered in the Medicare PECOS enrollment system.
When is Dennis R. Holmes, MD, Inc's Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by November 30, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through Dennis R. Holmes, MD, Inc?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (General Surgery) reassigns their Medicare billing to Dennis R. Holmes, MD, Inc. 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. 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 R. Holmes, MD, Inc was last updated on February 25, 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.
# Dennis R. Holmes, Md, Inc · NPI 1356633978
Surgery organization in Los Angeles, California. Organization record, active in the CMS NPPES registry since May 15, 2011.
## Identity
- **NPI:** 1356633978 (Entity type: Organization)
- **Enumerated:** May 15, 2011
- **Primary specialty:** Surgery · taxonomy 208600000X
- **Organization subpart:** No
- **Authorized official:** Dennis Holmes, OWNER
## Practice location
- **Address:** 1513 S GRAND AVE, Los Angeles, CA 90015-3021
- **Phone:** (213) 742-5784 · **Fax:** (213) 742-6055
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** November 30, 2026 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (General Surgery) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 25, 2016
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Source: [NPI Profile](https://npiprofile.com/npi/1356633978) · Data from the CMS NPPES public registry.