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GREGORY SIAUMAU PMHNP
NPI 1609583392
Nurse Practitioner - Psychiatric/Mental Health in Santee, CA

Active since November 01, 2022PECOS EnrolledAccepts Medicare Assignment
8770 CUYAMACA ST STE 4, SANTEE, CA 92071(619) 596-9890 Get Directions Write a Review

NPPES record last updated: September 30, 2024. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Sep 30, 2024, Nov 1, 2022 (2 updates tracked since 2022).

About Gregory Siaumau Pmhnp NPPES

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

GREGORY SIAUMAU PMHNP (NPI 1609583392) is an individual psychiatric/mental health provider in Santee, California, licensed in California (NP95031610) and active in the NPI registry since November 2022. He is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1609583392
Entity TypeIndividualMale
Primary Taxonomy363LP0808X
Provider Legal NameGREGORY SIAUMAUCredential: PMHNP
Location Address8770 CUYAMACA ST STE 4Santee, CA 92071-4289
Mailing Address8770 Cuyamaca St Ste 4Santee, CA 92071-4289 · (619) 596-9890
Phone(619) 596-9890
Sole ProprietorYes
Medical School CMSOtherGraduated 2024
Enumeration DateNovember 1, 2022
Last NPPES UpdateSeptember 30, 20242 updates tracked since enumeration
NPPES CertifiedSeptember 30, 2024
✔ NPI 1609583392 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 · NP95031610
8770 CUYAMACA ST STE 4, Santee, CA 92071
Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

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

Gregory Siaumau Pmhnp 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 ID9638605041
PECOS Enrollment IDI20241209003463
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 92071 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
$94.87 typical visit price
range $62.10 – $184.71
Typical copayment $23.71 (range $15.52 – $46.17)
Most-billed visit code 99203
Established Patient
$108.42 typical visit price
range $20.62 – $151.42
Typical copayment $27.10 (range $5.15 – $37.85)
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 3

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

YASHWANT S CHAUDHRI M.D.
Psychiatry & Neurology (Psychiatry)
8770 CUYAMACA ST STE 4
SANTEE, CA 92071
San Diego County (619) 596-9890
YASHWANT CHAUDHRI MD A PROF CORP
Psychiatry & Neurology (Psychiatry)
8770 CUYAMACA ST STE 4
SANTEE, CA 92071
San Diego County (619) 596-9890
MAHIPAL S. CHAUDHRI M.D.
Psychiatry & Neurology (Psychiatry)
8770 CUYAMACA ST STE 4
SANTEE, CA 92071
San Diego County (619) 596-9890

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 Gregory Siaumau's NPI number?

The NPI number for Gregory Siaumau is 1609583392. It was assigned to this individual provider in the NPPES registry on November 1, 2022.

Where is Gregory Siaumau located?

Gregory Siaumau practices at 8770 Cuyamaca St Ste 4, Santee, CA 92071. The listed phone number is (619) 596-9890.

What is Gregory Siaumau's specialty?

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

Is Gregory Siaumau enrolled in Medicare?

Yes. Gregory Siaumau 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.

When was this NPI record last updated?

The NPPES record for Gregory Siaumau was last updated on September 30, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months 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.