MARY NANCY HOLLIS
NPI 1639761323
Counselor - Mental Health in Winnetka, IL

Q: What is Mary Hollis's NPI number?

The NPI number for Mary Hollis is 1639761323. It was assigned to this individual provider in the NPPES registry on February 4, 2021.

Q: What is Mary Hollis's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Q: When was this NPI record last updated?

The NPPES record for Mary Hollis was last updated on February 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.

Active since February 04, 2021PECOS Enrolled

117 CHURCH RD, WINNETKA, IL 60093(415) 624-5796 Get Directions Write a Review

NPPES record last updated: February 4, 2021. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Mary Nancy Hollis NPPES

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

MARY NANCY HOLLIS (NPI 1639761323) is an individual mental health provider in Winnetka, Illinois and active in the NPI registry since February 2021. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1639761323

Entity TypeIndividualFemale

Primary Taxonomy101YM0800X

Provider Legal NameMARY NANCY HOLLIS

Location Address117 CHURCH RDWinnetka, IL 60093-3903

Mailing Address117 Church RdWinnetka, IL 60093-3903 · (415) 624-5796

Phone(415) 624-5796

Sole ProprietorYes

Enumeration DateFebruary 4, 2021

NPPES CertifiedFebruary 4, 2021

✔ NPI 1639761323 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers

Taxonomy Code101YM0800X

117 CHURCH RD, Winnetka, IL 60093

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health Maintenance Organization of Florida.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Nancy Hollis is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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 Mary Hollis's NPI number?

The NPI number for Mary Hollis is 1639761323. It was assigned to this individual provider in the NPPES registry on February 4, 2021.

Where is Mary Hollis located?

Mary Hollis practices at 117 Church Rd, Winnetka, IL 60093. The listed phone number is (415) 624-5796.

What is Mary Hollis's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Mary Hollis enrolled in Medicare?

Yes. Mary Hollis is registered in the Medicare PECOS enrollment system.

What insurance does Mary Hollis accept?

Health plans from Oscar Health Maintenance Organization of Florida list Mary Hollis 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 Mary Hollis was last updated on February 4, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.