DR. MARK JOEL MANNIS M.D.
NPI 1205811510
Specialist in Sacramento, CA
About Dr. Mark Joel Mannis M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK JOEL MANNIS M.D. (NPI 1205811510) is an individual specialist in Sacramento, California and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS, is affiliated with Renown Regional Medical Center, and is a graduate of University Of Florida College Of Medicine (1975).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Dr. Mark Joel Mannis M.d. 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
2Medicare enrollment records show Mark Mannis reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sacramento, CA 95817
- Reassigned Medicare billing, California enrollment
- 2,570 clinicians in this Medicare group
Grass Valley, CA 95949
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Regents Of The University Of California
- 918 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 12
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Renown Regional Medical Center
Acute Care Hospitals · Reno, NVMedicare 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.
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
SACRAMENTO, CA 95817
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 Mark Mannis's NPI number?
The NPI number for Mark Mannis is 1205811510. It was assigned to this individual provider in the NPPES registry on December 8, 2005.
Where is Mark Mannis located?
Mark Mannis practices at 4860 Y St Suite 2400, Sacramento, CA 95817. The listed phone number is (916) 734-6957.
What is Mark Mannis's specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is Mark Mannis enrolled in Medicare?
Yes. Mark Mannis 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 Mark Mannis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Mannis reassigns Medicare benefits to 2 organizations: Regents Of The Univ Of Ca (Sacramento, CA) and Regents Of The University Of Ca (Grass Valley, CA). 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 Mark Mannis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mark Mannis accept?
Health plans from Blue Cross and Blue Shield of Montana, Blue Cross and Blue Shield of Oklahoma, Blue Cross and Blue Shield of Texas and Providence Health Plan list Mark Mannis 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.
Is Mark Mannis affiliated with any hospitals?
According to CMS data, Mark Mannis is affiliated with Renown Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Mark Mannis was last updated on December 12, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.