Individual provider

Kathleen Carlos, MD, PHD

Student in an Organized Health Care Education/Training Program Medicare enrolled

Kathleen Carlos, MD, PHD is a provider specialising in Student in an Organized Health Care Education/Training Program in Orange, CA, registered under NPI 1043905755.

Getting there

The practice address on file is 3800 W CHAPMAN AVE STE 500, Orange, CA 92868. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

3800 W CHAPMAN AVE STE 500, Orange, CA 92868 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)
Status
Approved
Provider type
Order And Referring Only - Psychiatry
PAC ID
4789194184
Enrollment ID
I20250605002679

Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Psychiatry. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Student in an Organized Health Care Education/Training Program covers

An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care. NUCC Health Care Provider Taxonomy, code 390200000X
Student, Health Care Student in an Organized Health Care Education/Training Program

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-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1043905755 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateApr 7, 2023
Last updatedAug 13, 2023
StatusActive
Sole proprietorNo
CredentialMD, PHD
Practice address 3800 W CHAPMAN AVE STE 500
Orange, CA 92868
(949) 610-9598
The last update on file is Aug 13, 2023. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1043905755 passes the NPI check digit test The final digit 5 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 0 4 3 9 0 5 7 5
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 0 8 3 9 0 1 7 1

Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5

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 1043905755?
NPI 1043905755 is the National Provider Identifier assigned to Kathleen Carlos, MD, PHD in Orange, 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 Student in an Organized Health Care Education/Training Program cover?
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care.
How do I contact Kathleen Carlos, MD, PHD?
The phone number on file with NPPES is (949) 610-9598, last updated Aug 13, 2023. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Kathleen Carlos, MD, PHD accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1043905755 a valid number?
Yes. 1043905755 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.