Individual provider

Molly Harris, PHD

Clinical Psychologist

Molly Harris, PHD is a Clinical Psychologist in Saint Joseph, MO, registered under NPI 1598580508.

Getting there

The practice address on file is 3505 FREDERICK AVE, Saint Joseph, MO 64506. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

3505 FREDERICK AVE, Saint Joseph, MO 64506 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
2025023160 MO Clinical Psychologist primary

This provider holds licence 2025023160 issued in MO. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

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 Clinical covers

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems. NUCC Health Care Provider Taxonomy, code 103TC0700X
Behavioral Health & Social Service Providers Psychologist Clinical

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.

NPI1598580508 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateNov 15, 2024
Last updatedNov 21, 2025
StatusActive
Sole proprietorNo
CredentialPHD
Practice address 3505 FREDERICK AVE
Saint Joseph, MO 64506
(816) 387-2502
Mailing address 609 WHITE OAK LN
Kansas City, MO 64116
This record was updated on Nov 21, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1598580508 passes the NPI check digit test The final digit 8 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 9 8 5 8 0 5 0
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 9 8 1 8 0 5 0

Sum = 62 · next multiple of 10 = 70 · check digit = 8 · actual last digit = 8

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 1598580508?
NPI 1598580508 is the National Provider Identifier assigned to Molly Harris, PHD in Saint Joseph, MO. 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 Clinical cover?
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology --…
How do I contact Molly Harris, PHD?
The phone number on file with NPPES is (816) 387-2502, last updated Nov 21, 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 1598580508 a valid number?
Yes. 1598580508 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.