Organization provider

LIMITLESS MENTAL HEALTH, INC.

Adult Mental Health Clinic/Center Substance Use Disorder Rehabilitation Clinic/Center

LIMITLESS MENTAL HEALTH, INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1538954326, based in Costa Mesa, CA. The organization lists 2 taxonomy classifications, with Adult Mental Health Clinic/Center recorded as primary.

Getting there

The practice address on file is 129 W WILSON ST STE 203, Costa Mesa, CA 92627. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

129 W WILSON ST STE 203, Costa Mesa, CA 92627 Open in Google Maps →

Credentials and Medicare

State licence

NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.

Medicare (PECOS)

This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.

What Adult Mental Health covers

An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to mental and behavioral disorders in adults. NUCC Health Care Provider Taxonomy, code 261QM0850X
Ambulatory Health Care Facilities Clinic/Center Adult Mental Health

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
261QM0850X Adult Mental Health Clinic/Center Adult Mental Health primary
261QR0405X Substance Use Disorder Rehabilitation Clinic/Center Rehabilitation, Substance Use Disorder

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.

NPI1538954326 valid check digit
Entity typeOrganization (NPI-2)
Enumeration dateApr 11, 2025
Last updatedApr 11, 2025
StatusActive
Practice address 129 W WILSON ST STE 203
Costa Mesa, CA 92627
(808) 295-5498
Mailing address 13217 JAMBOREE RD STE 168
Tustin, CA 92782
This record was updated on Apr 11, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1538954326 passes the NPI check digit test The final digit 6 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 5 3 8 9 5 4 3 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 6 8 9 5 8 3 4

Sum = 74 · next multiple of 10 = 80 · check digit = 6 · actual last digit = 6

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1538954326?
NPI 1538954326 is the National Provider Identifier assigned to LIMITLESS MENTAL HEALTH, INC. in Costa Mesa, CA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Adult Mental Health cover?
An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to mental and behavioral disorders in adults.
How do I contact LIMITLESS MENTAL HEALTH, INC.?
The phone number on file with NPPES is (808) 295-5498, last updated Apr 11, 2025. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Is NPI 1538954326 a valid number?
Yes. 1538954326 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.