Independent US Healthcare Provider Directory & Public Medical Database Patient Guides

Yuko Hamajima , NP

Nurse Practitioner • Austin, TX

Active NPI 1851843288 Individual Practitioner Female Practitioner Accepts Medicare assignment
Practice location in NPPES

1601 Trinity St Stop 804
Austin, TX 787121866

Call 5123247865 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

1601 Trinity St Stop 804

Austin, TX 787121866

Telephone 5123247865
Other Listings in Public Data

CMS Doctors and Clinicians lists 1 group name: Seton Family Of Doctors. See the list

Source: CMS Doctors and Clinicians National Downloadable File, release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

Medicare Profile & Education

Source: CMS Doctors and Clinicians National Downloadable File

Graduation Year

2016

Medicare patients

26 people with Original Medicare in 2024

Different Original Medicare patients in 2024; counts below 11 are hidden; this does not show availability or quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider, 2024.

Medicare-allowed amount

About $2,375 in 2024

The total amount Medicare approved for these services in 2024. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.

What this does not show: Medicare-allowed amount

This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

Paid by Medicare

About $1,630 in 2024

The part of the Medicare-allowed amount that Medicare itself paid in 2024, after patients' deductibles and coinsurance.

What this does not show: Paid by Medicare

This is not the clinician's income and not a measure of quality.

Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2024.

30-day fills

36 standardized 30-day fills in 2023

CMS converts prescriptions to 30-day supplies so they can be compared. A 90-day prescription counts as about three 30-day fills.

What this does not show: 30-day fills

It is not a count of patients and not a measure of quality.

Part D drug cost

$798 in 2023

The total cost of these prescriptions in 2023, paid by Medicare drug plans, patients and other payers together.

What this does not show: Part D drug cost

A higher cost often reflects the type of medicines a specialty uses. It is not your out-of-pocket cost and not a measure of quality.

Source: CMS, Medicare Part D Prescribers – by Provider and Drug, 2023.

Open Payments general payments, program year 2025

All general payments: $199.98 across 2 records.

By nature of payment

  • Education: $199.98 across 2 records.

Reporting-company totals

  • Astellas Pharma US Inc: $199.98 across 2 records.

A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.

See the full table

Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2025 (published June 30, 2026).

Guide: How to read an Open Payments record

Years since graduation

10 years (graduated 2016)

CMS Doctors and Clinicians data list 2016 as the year this clinician finished professional school.

What this does not show: Years since graduation

It is not the number of years in practice, and more years does not mean better care.

Source: CMS Doctors and Clinicians National Downloadable File.

NPI first issued

2016

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Accepts Medicare assignment

CMS data list this clinician as accepting Medicare assignment. This means agreeing to take the Medicare-approved amount as full payment for covered services.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Enrolled in Medicare (PECOS)

Yuko Hamajima has a Medicare enrollment record in PECOS, the CMS system clinicians use to enroll so they can bill Medicare or order services for people with Medicare.

It does not show whether the clinician accepts assignment, is in your plan's network, or is taking new patients.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What Medicare enrollment (PECOS) means

Can order Medicare-covered services

CMS lists Yuko Hamajima as eligible to order or refer Medicare Part B clinical laboratory and imaging services, durable medical equipment (DME) and home health services for people with Medicare.

What this does not show: Can order Medicare-covered services

It does not mean the clinician offers these services directly.

Source: CMS Medicare Fee-For-Service Public Provider Enrollment (PECOS); CMS Order and Referring file.

Guide: What ordering and referring status means

Compared with the same specialty in Austin and Texas

Billing and prescribing volume is not a quality rating.

Medicare Part B services

Fewer Medicare Part B services than 90% of clinicians listed under Nurse Practitioner in Austin, TX (2024, 86 clinicians with data). Median for this group: 200. Middle half: 77 to 446.

Fewer Medicare Part B services than 85% of clinicians listed under Nurse Practitioner in Texas (2024, 1,852 clinicians with data). Median for this group: 219. Middle half: 83 to 548.

Medicare-allowed amount

A lower Medicare-allowed amount than 90% of clinicians listed under Nurse Practitioner in Austin, TX (2024, 86 clinicians with data). Median for this group: $17,266. Middle half: $6,690 to $36,788.

A lower Medicare-allowed amount than 90% of clinicians listed under Nurse Practitioner in Texas (2024, 1,852 clinicians with data). Median for this group: $17,068. Middle half: $6,758 to $39,305.

Paid by Medicare

A lower Medicare payment amount than 90% of clinicians listed under Nurse Practitioner in Austin, TX (2024, 86 clinicians with data). Median for this group: $12,711. Middle half: $4,760 to $27,495.

A lower Medicare payment amount than 90% of clinicians listed under Nurse Practitioner in Texas (2024, 1,852 clinicians with data). Median for this group: $12,638. Middle half: $4,849 to $28,908.

Medicare Part D

Comparisons use 2024 data. The latest CMS data for Yuko Hamajima are from 2023.

227 active clinicians are listed under Nurse Practitioner with a practice address in Austin, TX (4,835 in Texas).

Addresses are self-reported to NPPES and may be out of date.

Telehealth indicator in Austin

10.6% of these 227 clinicians have the CMS telehealth indicator.

42.7% of these 227 clinicians are listed by CMS as accepting Medicare assignment.

Sources: CMS Medicare Physician & Other Practitioners (2024), CMS Medicare Part D Prescribers (2023), CMS Open Payments (2025), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo · Report an error.

Pharma & Medical Device Financial Disclosures

Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments

Open Payments · Program Year 2025
Disclosure Year:

Program year 2025 (payments made January 1 – December 31, 2025): fewer than 11 records totaling $199.98.

Manufacturer Payment Nature Product Type Amount ($)
Astellas Pharma US Inc
Education
In-kind items and services
— General $99.99
Astellas Pharma US Inc
Education
In-kind items and services
— General $99.99

Source: CMS Open Payments, program year 2025, released June 30, 2026.

Performed Procedures & Service Volume

Services billed to Original Medicare Part B in 2024.

CMS Part B · Data Year 2024
Reporting Year:

CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2017–2023 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2018–2024; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.

HCPCS Code Services Patients Submitted Charge Medicare Allowed
99213 Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more
22 13 $156.00 $47.62
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
12 11 $337.00 $110.58

Source: CMS Part B by Provider and Service, 2024; services under 11 beneficiaries omitted by CMS. Privacy limits

Submitted charges are billed amounts, not a price quote for your visit.

Medicare Part D Prescribing Profile & Medications

Medicare Part D prescriptions filled, including refills, in 2023.

CMS Part D · Data Year 2023
Prescription Year:
Brand Name Generic Name Prescriptions Day Supply Total Cost Patients
Prochlorperazine Maleate Prochlorperazine Maleate 13 94 $169.97 —
Ondansetron Hcl Ondansetron Hcl 12 240 $363.93 —
Olanzapine Olanzapine 11 300 $263.76 —

Source: CMS Part D by Provider and Drug, 2023; rows below 11 claims omitted by CMS; volume isn’t quality. Privacy limits

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2021-08-16
Nurse Practitioner Primary Specialty

NUCC Taxonomy Code: 363L00000X

License # reported to NPPES TX 1023855

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Texas Medical Board.
Look Up on State Board Site

Medicare (PECOS) Enrollment & Ordering Eligibility

Source: CMS PECOS
Medicare FFS Enrollment Status Medicare Enrollment on File
CMS Provider Specialty

PRACTITIONER - NURSE PRACTITIONER

Medicare Enrollment ID

I20211122001806

Enrollment State Jurisdiction

TX

PECOS Control ID

9234410788

Medicare Order & Referring Eligibility
Clinical Lab & Imaging (Part B) Eligible
Durable Medical Equipment (DME) Eligible
Home Health Agency (HHA) Eligible
Power Mobility Devices (PMD) Eligible

Sources: CMS Provider Enrollment and Order and Referring. Medicare enrollment is a billing status, not an accreditation or quality rating.

Medicare Group Practice Enrollments

Source: CMS Doctors and Clinicians National Downloadable File

Seton Family Of Doctors

1601 Trinity St, Austin, TX 787121866

Phone: 5123247865

Clinicians Sharing This Practice Address or Phone

Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.

2 listed
Dr. Ala'a Eddin Tayyem , MD

Internal Medicine - Medical Oncology

NPI 1437400702

Doctor of Medicine (M.D.)

Dr. Marian Williams-Brown , MD

Obstetrics & Gynecology - Gynecologic Oncology

NPI 1861696460

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

9 Historical Events
📍
Updated Practice Location August 16, 2021

Registered at 1601 TRINITY ST STOP 804, AUSTIN, TX 787121866 (Tel: 5123247865)

📍
Updated Business Mailing Address August 16, 2021

Registered at 1601 TRINITY ST STOP 804, AUSTIN, TX 787121866 (Tel: 5123247865)

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) August 16, 2021

Nurse Practitioner (license number reported to NPPES: TX 1023855)

âś…
NPI Profile Active November 02, 2016

NPI status registered as active in NPPES database

📍
Practice Location (Initial Record) November 02, 2016

Registered at 875 BLAKE WILBUR DR, MC 5820, PALO ALTO, CA 943042205 (Tel: 6507258738)

📍
Business Mailing Address (Initial Record) November 02, 2016

Registered at 1804 EMBARCADERO RD, SUITE 100, PALO ALTO, CA 943033341

👤
Provider Name / Credentials (Initial Record) November 02, 2016

Recorded as YUKO HAMAJIMA, NP

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) November 02, 2016

Nurse Practitioner (license number reported to NPPES: CA RN735213)

🟢
Initial NPI Registration & Enumeration November 02, 2016

First registered as active Individual Practitioner in NPPES Database.

No reviews have been published yet. Leave a review.

NPI Administrative Meta

NPI Number: 1851843288
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: November 02, 2016
Last Update: August 16, 2021
Sole Proprietor: No

Other Nurse Practitioners in Austin

All Nurse Practitioners in Austin

Mailing Address

1601 Trinity St Stop 804

Austin, TX 787121866

Phone: 5123247865

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.