Individual provider

Shelby Ortiz, PHD

Psychologist Health Psychologist Medicare enrolled

Shelby Ortiz, PHD is a Health Psychologist in Ann Arbor, MI, registered under NPI 1639994445. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

1500 E MEDICAL CENTER DR, Ann Arbor, MI 48109 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
6301019576 MI Psychologist
6301019576 MI Health Psychologist primary

This provider holds licence 6301019576 issued in MI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Clinical Psychologist
PAC ID
1850899170
Enrollment ID
I20250807000407

Medicare enrolment is recorded as approved under the provider type Practitioner - Clinical Psychologist. 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 Health covers

A psychologist who specializes in clinical health psychology that investigates and implements clinical services across diverse populations and settings to promote health and well-being and to prevent, treat, and manage illness and disability. Clinical health psychology sees health as the confluence of psychological, social, cultural, and biological factors and applies this understanding to professional activities including:<br/>* Research<br/>* Clinical service<br/>* Consulting with, educating, and supervising other health care providers and psychologists<br/>* Advising organizations, institutions, the public, and policymakers NUCC Health Care Provider Taxonomy, code 103TH0004X
Behavioral Health & Social Service Providers Psychologist 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
103T00000X Psychologist 6301019576 MI
103TH0004X Health Psychologist Health 6301019576 MI primary

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.

NPI1639994445 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateNov 18, 2024
Last updatedFeb 14, 2025
StatusActive
Sole proprietorNo
GenderFemale
CredentialPHD
Practice address 1500 E MEDICAL CENTER DR
Ann Arbor, MI 48109
(734) 936-4000
Mailing address 3621 S STATE ST
Ann Arbor, MI 48108
This record was updated on Feb 14, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1639994445 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 6 3 9 9 9 4 4 4
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 6 9 9 9 8 4 8

Sum = 85 · next multiple of 10 = 90 · 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 1639994445?
NPI 1639994445 is the National Provider Identifier assigned to Shelby Ortiz, PHD in Ann Arbor, MI. 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 Health cover?
A psychologist who specializes in clinical health psychology that investigates and implements clinical services across diverse populations and settings to promote health and well-being and to prevent, treat, and manage illness and disability. Clinical health psychology sees health as the confluence of psychological…
How do I contact Shelby Ortiz, PHD?
The phone number on file with NPPES is (734) 936-4000, last updated Feb 14, 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.
Does Shelby Ortiz, 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 1639994445 a valid number?
Yes. 1639994445 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.