NPPES file of Aug 9, 2026

Julyana Harumi Yamassaki-Davidson, FNP-C

Family Nurse Practitioner · Sunnyvale, TX

Julyana Harumi Yamassaki-Davidson, FNP-C is a family nurse practitioner with a practice address in Sunnyvale, Texas, and NPI 1164137691, issued on Jan 19, 2023. Check the license (Texas 1018876, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164137691
Name
Julyana Harumi Yamassaki-Davidson
Credential
FNP-C
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
1018876 TX
Self-reported in NPPES; status is on the state search
Practice location
341 Wheatfield Dr Ste 100, Sunnyvale, TX 75182
Phone
(972) 285-0221
Enumerated
Jan 19, 2023
Record last updated
Apr 30, 2025
Medicare enrollment
Enrolled (PECOS I20250507001609); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest family nurse practitioner records → All 21,242 in Texas → Look up another NPI →

Also registered at 341 Wheatfield Dr Ste 100

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Daniel Barrios, NPPrimary Care Nurse Practitioner1770993818
  2. Billy De Los Santos, MDInternal Medicine Physician1386885614
  3. Ankoor Kambhampaty, MDFamily Medicine Physician1811427222
  4. Sojin Kim, NPFamily Nurse Practitioner1982138608
  5. Sarah Moore, AGNPNurse Practitioner1649401266
  6. Sarah Ouimet, PA-CPhysician Assistant1487388203

Verify Julyana Harumi Yamassaki-Davidson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Texas board licenses this profession
    Search for license 1018876    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Wellmed Medical Group PASunnyvale, TX

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Julyana Harumi Yamassaki-Davidson among 21,242 family nurse practitioner records in Texas

Julyana Harumi Yamassaki-Davidson, FNP-C is one of 21,242 family nurse practitioner records with a practice address in Texas. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 80% of them.

  • NPI issued2023 · 80% of these records are older, 14% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 53% of these records are
  • Graduated2024 · median 2018 among the 11,286 with a school on file
  • Record last updated2025 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

26 family nurse practitioner records list a practice address in Sunnyvale

They are 26 of the 213 NPPES records with a practice address in Sunnyvale, and 21,242 family nurse practitioner records in Texas.

All 21,242 in Texas → Every provider in Sunnyvale → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Lindsay Goethals, NPSunnyvale, TX 751821245259183
  2. Mini IypeSunnyvale, TX 751821043744154
  3. Courtney Johnson, FNP-CSunnyvale, TX 751821811495062
  4. Joychan Joseph, FNPSunnyvale, TX 751821902234362
  5. Lissy JoySunnyvale, TX 751821063827178
  6. Sojin Kim, NPSunnyvale, TX 751821982138608
  7. Zekeya Lofton, NPSunnyvale, TX 751821578582987
  8. Lizy MammoottilSunnyvale, TX 751821548654825

Common questions

What is Julyana Harumi Yamassaki-Davidson, FNP-C's NPI number?

Julyana Harumi Yamassaki-Davidson, FNP-C's National Provider Identifier (NPI) is 1164137691, issued on Jan 19, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Julyana Harumi Yamassaki-Davidson, FNP-C located?

The NPPES record lists a practice address at 341 Wheatfield Dr Ste 100, Sunnyvale, TX, 75182. Phone: (972) 285-0221. Providers update this record themselves, so call before visiting.

How can I verify Julyana Harumi Yamassaki-Davidson, FNP-C's license?

NPPES lists Texas license number 1018876, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.