DR. MARK MCALLISTER MD
NPI 1669934394
Ophthalmology - Retina Specialist in Sacramento, CA
About Dr. Mark Mcallister Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARK MCALLISTER MD (NPI 1669934394) is an individual retina specialist in Sacramento, California, licensed in California (A196061) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical School At Houston (2019).
NPPES Registry Identity
Specialties & Licenses
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 Mcallister 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 Reassignments
2Medicare enrollment records show Mark Mcallister reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Folsom, CA 95630
- Reassigned Medicare billing, California enrollment
- 22 clinicians in this Medicare group
Peoria, IL 61605
- Reassigned Medicare billing, Illinois enrollment
- 2,127 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
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 95825 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare 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 6
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SACRAMENTO, CA 95825
SACRAMENTO, CA 95825
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 Mcallister's NPI number?
The NPI number for Mark Mcallister is 1669934394. It was assigned to this individual provider in the NPPES registry on April 2, 2019.
Where is Mark Mcallister located?
Mark Mcallister practices at 3 Park Center Dr Ste 100, Sacramento, CA 95825. The listed phone number is (916) 454-4861.
What is Mark Mcallister's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Retina Specialist, with taxonomy code 207WX0107X.
Is Mark Mcallister enrolled in Medicare?
Yes. Mark Mcallister 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 Mcallister's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Mcallister reassigns Medicare benefits to 2 organizations: Vitreo-Retinal Medical Group, Inc (Folsom, CA) and Board Of Trustees Of The University Of Illinois (Peoria, IL). 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 Mcallister's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Mark Mcallister was last updated on January 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months 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.
# Dr. Mark Mcallister, MD · NPI 1669934394
Retina Specialist physician in Sacramento, California. Individual provider, active in the CMS NPPES registry since April 2, 2019.
## Identity
- **NPI:** 1669934394 (Entity type: Individual)
- **Enumerated:** April 2, 2019
- **Primary specialty:** Ophthalmology - Retina Specialist · taxonomy 207WX0107X
- **State license:** A196061 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 3 PARK CENTER DR STE 100, Sacramento, CA 95825-8340
- **Phone:** (916) 454-4861
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Vitreo-Retinal Medical Group, Inc (NPI 1033566096, Folsom, CA); Board Of Trustees Of The University Of Illinois (NPI 1467425322, Peoria, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Texas Medical School At Houston, class of 2019
## Record status
- **NPPES last updated:** January 9, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1669934394) · Data from the CMS NPPES public registry.