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

BLANCA ESTELA SIERRA PINEDA PMHNP-BC
NPI 1598569436
Nurse Practitioner - Psychiatric/Mental Health in Santa Rosa, CA

Active since April 01, 2025PECOS EnrolledAccepts Medicare Assignment
451 AVIATION BLVD STE 107A, SANTA ROSA, CA 95403(707) 521-8875(707) 432-4900 Get Directions Write a Review

NPPES record last updated: October 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 13, 2026, Aug 21, 2026, Apr 1, 2025 (3 updates tracked since 2025).

About Blanca Estela Sierra Pineda Pmhnp-bc NPPES

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

BLANCA ESTELA SIERRA PINEDA PMHNP-BC (NPI 1598569436) is an individual psychiatric/mental health provider in Santa Rosa, California, licensed in California (2025008241) and active in the NPI registry since April 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2021).

NPPES Registry Identity

NPI1598569436
Entity TypeIndividualFemale
Primary Taxonomy363LP0808X
Provider Legal NameBLANCA ESTELA SIERRA PINEDACredential: PMHNP-BC
Location Address451 AVIATION BLVD STE 107ASanta Rosa, CA 95403-1055
Mailing Address451 Aviation Blvd Ste 107aSanta Rosa, CA 95403-1055 · (707) 521-8875 · Fax (707) 432-4900
Phone(707) 521-8875
Fax(707) 432-4900
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateApril 1, 2025
Last NPPES UpdateOctober 13, 20263 updates tracked since enumeration
NPPES CertifiedOctober 13, 2026
✔ NPI 1598569436 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 · 2025008241
451 AVIATION BLVD STE 107A, Santa Rosa, CA 95403
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Blanca Estela Sierra Pineda Pmhnp-bc 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 ID5991282006
PECOS Enrollment IDI20260120003872
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.

Medicare Billing Reassignment

Medicare enrollment records show Blanca Sierra Pineda reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Sutter Bay Medical Foundation
55 mi
Multi-Specialty
12 CAMINO ENCINAS
Orinda, CA 94563
  • Reassigned Medicare billing, California enrollment
  • 4,479 clinicians in this Medicare group
NPI 1366898538 (510) 204-8180

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95403 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
$96.16 typical visit price
range $63.04 – $187.01
Typical copayment $24.04 (range $15.76 – $46.75)
Most-billed visit code 99203
Established Patient
$109.88 typical visit price
range $21.02 – $153.40
Typical copayment $27.47 (range $5.25 – $38.35)
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.

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 Blanca Sierra Pineda's NPI number?

The NPI number for Blanca Sierra Pineda is 1598569436. It was assigned to this individual provider in the NPPES registry on April 1, 2025.

Where is Blanca Sierra Pineda located?

Blanca Sierra Pineda practices at 451 Aviation Blvd Ste 107A, Santa Rosa, CA 95403. The listed phone number is (707) 521-8875.

What is Blanca Sierra Pineda's specialty?

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

Is Blanca Sierra Pineda enrolled in Medicare?

Yes. Blanca Sierra Pineda 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.

Which organization bills Medicare for Blanca Sierra Pineda's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Blanca Sierra Pineda reassigns Medicare benefits to Sutter Bay Medical Foundation (Orinda, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Blanca Sierra Pineda's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Blanca Sierra Pineda was last updated on October 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 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.