MARK WILLIAM DAILEY
NPI 1063866747
Psychiatry & Neurology - Psychiatry in Riverside, CA
About Mark William Dailey NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARK WILLIAM DAILEY (NPI 1063866747) is an individual psychiatry provider in Riverside, California, licensed in California (20A16017) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
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
Mark William Dailey 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
5Medicare enrollment records show Mark Dailey reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Inglewood, CA 90301
- Reassigned Medicare billing, California enrollment
- 86 clinicians in this Medicare group
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Western Specialty Group LP
- 13 clinicians in this Medicare group
San Jose, CA 95138
- Reassigned Medicare billing, California enrollment
- 112 clinicians in this Medicare group
Berkeley, CA 94705
- Reassigned Medicare billing, California enrollment
- 103 clinicians in this Medicare group
Houston, TX 77070
- Reassigned Medicare billing, California enrollment
- 105 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 92503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
RIVERSIDE, CA 92503
RIVERSIDE, CA 92503
RIVERSIDE, CA 92503
RIVERSIDE, CA 92503
RIVERSIDE, CA 92503
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 Dailey's NPI number?
The NPI number for Mark Dailey is 1063866747. It was assigned to this individual provider in the NPPES registry on April 19, 2016.
Where is Mark Dailey located?
Mark Dailey practices at 9990 County Farm Rd, Riverside, CA 92503. The listed phone number is (951) 486-4000.
What is Mark Dailey's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Mark Dailey enrolled in Medicare?
Yes. Mark Dailey 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 Dailey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mark Dailey reassigns Medicare benefits to 5 organizations: Alliance For Wellness, Inc. (Inglewood, CA), Western Specialty Group L.P. (San Diego, CA), Precision Psychiatric Services Inc (San Jose, CA), Psychplus Associates Of California PC (Berkeley, CA) and Psychplus Medical Associates Of California PC (Houston, TX). 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 Dailey'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 Dailey was last updated on March 4, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Mark William Dailey · NPI 1063866747
Psychiatry physician in Riverside, California. Individual provider, active in the CMS NPPES registry since April 19, 2016.
## Identity
- **NPI:** 1063866747 (Entity type: Individual)
- **Enumerated:** April 19, 2016
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 20A16017 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 9990 COUNTY FARM RD, Riverside, CA 92503-3542
- **Phone:** (951) 486-4000
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Alliance For Wellness, Inc. (NPI 1124329131, Inglewood, CA); Western Specialty Group L.P. (NPI 1528770385, San Diego, CA); Precision Psychiatric Services Inc (NPI 1174094064, San Jose, CA); Psychplus Associates Of California PC (NPI 1457179442, Berkeley, CA); Psychplus Medical Associates Of California PC (NPI 1124875588, Houston, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** March 4, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1063866747) · Data from the CMS NPPES public registry.