NANCY E. SISKOWIC NP, CNS
NPI 1114133576
Nurse Practitioner - Psychiatric/Mental Health in Rolling Hills Estates, CA

Q: What is Nancy Siskowic's NPI number?

The NPI number for Nancy Siskowic is 1114133576. It was assigned to this individual provider in the NPPES registry on May 15, 2007.

Q: What is Nancy Siskowic's specialty?

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

Q: Is Nancy Siskowic enrolled in Medicare?

No. Nancy Siskowic has opted out of Medicare through April 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

Q: When was this NPI record last updated?

The NPPES record for Nancy Siskowic was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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 May 15, 2007Opted out of Medicare · through Apr 1, 2027

608 SILVER SPUR RD, SUITE 270, ROLLING HILLS ESTATES, CA 90274(310) 872-4640(310) 375-8415 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Nancy E. Siskowic Np, Cns NPPES

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

NANCY E. SISKOWIC NP, CNS (NPI 1114133576) is an individual psychiatric/mental health provider in Rolling Hills Estates, California, licensed in California (RN139580) and active in the NPI registry since May 2007. She has opted out of Medicare through April 1, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1114133576

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameNANCY E. SISKOWICCredential: NP, CNS

Location Address608 SILVER SPUR RD, SUITE 270Rolling Hills Estates, CA 90274-3602

Mailing Address720 Via SomontePalos Verdes Estates, CA 90274-1629 · (310) 375-8414 · Fax (310) 375-8415

Phone(310) 872-4640

Fax(310) 375-8415

Sole ProprietorYes

Enumeration DateMay 15, 2007

Last NPPES UpdateJuly 8, 2007

✔ NPI 1114133576 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

License✔ Licensed in CA · RN139580

608 SILVER SPUR RD, Rolling Hills Estates, CA 90274

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Nancy E. Siskowic Np, Cns has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from April 1, 2019 through April 1, 2027.

Opt-Out Effective DateApril 1, 2019

Opt-Out In Effect ThroughApril 1, 2027Opt-out affidavits renew automatically every two years unless cancelled

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90274 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

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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.

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 Nancy Siskowic's NPI number?

The NPI number for Nancy Siskowic is 1114133576. It was assigned to this individual provider in the NPPES registry on May 15, 2007.

Where is Nancy Siskowic located?

Nancy Siskowic practices at 608 Silver Spur Rd Suite 270, Rolling Hills Estates, CA 90274. The listed phone number is (310) 872-4640.

What is Nancy Siskowic's specialty?

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

Is Nancy Siskowic enrolled in Medicare?

No. Nancy Siskowic has opted out of Medicare through April 1, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Nancy Siskowic was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.