JULYANA HARUMI YAMASSAKI-DAVIDSON FNP-C
NPI 1164137691
Nurse Practitioner - Family in Sunnyvale, TX

Q: What is Julyana Yamassaki-davidson's NPI number?

The NPI number for Julyana Yamassaki-davidson is 1164137691. It was assigned to this individual provider in the NPPES registry on January 19, 2023.

Q: What is Julyana Yamassaki-davidson's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Active since January 19, 2023PECOS EnrolledAccepts Medicare Assignment

341 WHEATFIELD DR STE 100, SUNNYVALE, TX 75182(972) 285-0221 Get Directions Write a Review

NPPES record last updated: April 30, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 8, 2025, Jan 19, 2023 (2 updates tracked since 2023).

On this page

About Julyana Harumi Yamassaki-davidson Fnp-c NPPES

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

JULYANA HARUMI YAMASSAKI-DAVIDSON FNP-C (NPI 1164137691) is an individual family provider in Sunnyvale, Texas, licensed in Texas (1018876) and active in the NPI registry since January 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1164137691

Entity TypeIndividualFemale

Primary Taxonomy363LF0000X

Provider Legal NameJULYANA HARUMI YAMASSAKI-DAVIDSONCredential: FNP-C

Location Address341 WHEATFIELD DR STE 100Sunnyvale, TX 75182-4639

Mailing Address341 Wheatfield Dr Ste 100Sunnyvale, TX 75182-4639 · (972) 285-0221

Phone(972) 285-0221

Sole ProprietorNo

Medical School CMSOtherGraduated 2024

Enumeration DateJanuary 19, 2023

Last NPPES UpdateApril 30, 20252 updates tracked since enumeration

NPPES CertifiedApril 30, 2025

✔ NPI 1164137691 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LF0000X

License✔ Licensed in TX · 1018876

341 WHEATFIELD DR STE 100, Sunnyvale, TX 75182

Open in Google Maps ↗

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

Julyana Harumi Yamassaki-davidson Fnp-c 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 ID8325565914

PECOS Enrollment IDI20250507001609

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 75182 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

$88.19 typical visit price

range $57.18 – $172.86

Typical copayment $22.04 (range $14.29 – $43.21)

Most-billed visit code 99203

Established Patient

$100.80 typical visit price

range $18.48 – $141.20

Typical copayment $25.20 (range $4.62 – $35.30)

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 7

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

LINDSAY A YARBROUGH D.O.

Family Medicine