Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

LAUREN MARIENAU
NPI 1922865187
Nurse Practitioner - Psychiatric/Mental Health in Phoenix, AZ

Active since March 04, 2024PECOS EnrolledAccepts Medicare Assignment
20950 N TATUM BLVD STE 380, PHOENIX, AZ 85050(480) 626-7584 Get Directions Write a Review

NPPES record last updated: June 15, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Lauren Marienau NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LAUREN MARIENAU (NPI 1922865187) is an individual psychiatric/mental health provider in Phoenix, Arizona, licensed in Arizona (2023207827) and active in the NPI registry since March 2024. She is enrolled in Medicare PECOS, maintains 8 additional practice locations, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1922865187
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameLAUREN MARIENAU
Location Address20950 N TATUM BLVD STE 380Phoenix, AZ 85050-4258
Mailing Address20950 N Tatum Blvd Ste 380Phoenix, AZ 85050-4258 · (480) 712-6583
Sole ProprietorNo
Medical School CMSOtherGraduated 2023
Enumeration DateMarch 4, 2024
Last NPPES UpdateJune 15, 2026
NPPES CertifiedJune 15, 2026
NPI 1922865187 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0808X
License Licensed in AZ · 2023207827
Also ListedRegistered Nurse · Psychiatric/Mental Health, AdultTaxonomy 163WP0809X · License 230815 (AZ)
20950 N TATUM BLVD STE 380, Phoenix, AZ 85050

Secondary Practice Locations 8

Location 14545 E Chandler Blvd Ste 308Phoenix, AZ 85048-7646 · Phone (480) 626-7584
Location 2560 W Brown Rd Ste 1011Mesa, AZ 85201-3222 · Phone (480) 712-6583
Location 31760 E Pecos Rd Ste 247Gilbert, AZ 85295-3214 · Phone (480) 626-7584
Location 42046 W Riverview Auto Dr Ste 401Mesa, AZ 85201-7597 · Phone (480) 626-7584
Location 536457 N Gantzel Rd Ste 102San Tan Valley, AZ 85140-7343 · Phone (480) 626-7584
Location 61501 N Gilbert Rd Ste 206Gilbert, AZ 85234-2394 · Phone (480) 626-7584
Location 72355 E Camelback Rd Ste 625Phoenix, AZ 85016-3458 · Phone (480) 626-7584
Location 81860 N 95th Ln Ste 300Phoenix, AZ 85037-5074 · Phone (480) 626-7584

Accepted Insurance

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Lauren Marienau is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8729512660
PECOS Enrollment IDI20241114001000
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85050 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
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$98.00 typical visit price
range $17.72 – $137.41
Typical copayment $24.50 (range $4.43 – $34.35)
Most-billed visit code 99214
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 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner (Psychiatric/Mental Health)
20950 N TATUM BLVD STE 380
PHOENIX, AZ 85050
Psychiatry & Neurology (Psychiatry)
20950 N TATUM BLVD STE 380
PHOENIX, AZ 85050
Nurse Practitioner (Psychiatric/Mental Health)
20950 N TATUM BLVD STE 380
PHOENIX, AZ 85050
Nurse Practitioner (Psychiatric/Mental Health)
20950 N TATUM BLVD STE 380
PHOENIX, AZ 85050
Nurse Practitioner (Psychiatric/Mental Health)
20950 N TATUM BLVD STE 380
PHOENIX, AZ 85050
Nurse Practitioner (Psychiatric/Mental Health)
20950 N TATUM BLVD STE 380
PHOENIX, AZ 85050
Psychiatry & Neurology (Psychiatry)
20950 N TATUM BLVD STE 380
PHOENIX, AZ 85050
Nurse Practitioner (Psychiatric/Mental Health)
20950 N TATUM BLVD STE 380
PHOENIX, AZ 85050

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 Lauren Marienau's NPI number?

The NPI number for Lauren Marienau is 1922865187. It was assigned to this individual provider in the NPPES registry on March 4, 2024.

Where is Lauren Marienau located?

Lauren Marienau practices at 20950 N Tatum Blvd Ste 380, Phoenix, AZ 85050. The listed phone number is (480) 626-7584.

What is Lauren Marienau's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Lauren Marienau enrolled in Medicare?

Yes. Lauren Marienau is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Lauren Marienau accept?

Health plans from Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc., Providence Health Plan and UnitedHealthcare list Lauren Marienau 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 Lauren Marienau was last updated on June 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 56 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.