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MARK WILLIAM DAILEY
NPI 1063866747
Psychiatry & Neurology - Psychiatry in Riverside, CA

Active since April 19, 2016PECOS Enrolled
9990 COUNTY FARM RD, RIVERSIDE, CA 92503(951) 486-4000 Get Directions Write a Review

NPPES record last updated: March 4, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Mar 4, 2026, Jan 6, 2026, Jul 28, 2023 and 2 more (5 updates tracked since 2019).

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 and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1063866747
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameMARK WILLIAM DAILEY
Location Address9990 COUNTY FARM RDRiverside, CA 92503-3542
Mailing Address9990 County Farm RdRiverside, CA 92503-3542
Phone(951) 486-4000
Sole ProprietorYes
Enumeration DateApril 19, 2016
Last NPPES UpdateMarch 4, 20265 updates tracked since enumeration
NPPES CertifiedMarch 4, 2026
✔ NPI 1063866747 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · 20A16017
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
9990 COUNTY FARM RD, Riverside, CA 92503
Open in Google Maps ↗

Secondary Practice Locations 2

Location 12185 Citracado PkwyEscondido, CA 92029-4159 · Phone (760) 739-3012
Location 21100 S Akers StVisalia, CA 93277-8311 · Phone (559) 624-3300

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mark William Dailey is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
63 services16 patients

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.

New Patient
$179.42 typical visit price
range $59.60 – $179.42
Typical copayment $44.85 (range $14.90 – $44.85)
Most-billed visit code 99205
Established Patient
$74.08 typical visit price
range $19.37 – $146.42
Typical copayment $18.52 (range $4.84 – $36.60)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

MRS. DESIREE C NWIGWE APRN, PMHNP, PHN
Nurse Practitioner (Psychiatric/Mental Health)
9990 COUNTY FARM RD
RIVERSIDE, CA 92503
Riverside County (951) 358-4000
ANDREW MUSSELMAN
Peer Specialist
9990 COUNTY FARM RD, SUITE 6
RIVERSIDE, CA 92503
Riverside County (866) 481-5361
DR. DAVID ROBERT SEIGLER M.D.
Psychiatry & Neurology (Psychiatry)
9990 COUNTY FARM RD
RIVERSIDE, CA 92503
Riverside County (951) 358-4881
DR. TOKUNBO LABISI WILLIAMS M.D
Psychiatry & Neurology (Psychiatry)
9990 COUNTY FARM RD
RIVERSIDE, CA 92503
Riverside County (951) 358-4770
SARAH MATIGI PSYCHIATRIC NP
Nurse Practitioner (Psychiatric/Mental Health)
9990 COUNTY FARM RD
RIVERSIDE, CA 92503
Riverside County (951) 358-4881
ALISIA LASCANO-OROPEZA
Counselor (Mental Health)
9990 COUNTY FARM RD, SUITE 5
RIVERSIDE, CA 92503
Riverside County (951) 358-4834
MS. MEGHAN PATTERSON
Behavior Analyst
9990 COUNTY FARM RD
RIVERSIDE, CA 92503
Riverside County (951) 358-6922
MR. SAMUEL NECTALI MARTINEZ BSW
Counselor (Mental Health)
9990 COUNTY FARM RD, SUITE 5
RIVERSIDE, CA 92503
Riverside County (760) 238-8385

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 enrollment system.

What insurance does Mark Dailey accept?

Health plans from Providence Health Plan list Mark Dailey 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.

When was this NPI record last updated?

The NPPES record for Mark Dailey was last updated on March 4, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.