WILLIAM HSU MD
NPI 1578854725
Internal Medicine in Evansville, IN

Q: What is William Hsu's NPI number?

The NPI number for William Hsu is 1578854725. It was assigned to this individual provider in the NPPES registry on April 22, 2011.

Q: What is William Hsu's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Q: When was this NPI record last updated?

The NPPES record for William Hsu was last updated on December 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since April 22, 2011PECOS EnrolledAccepts Medicare Assignment

3700 WASHINGTON AVE, EVANSVILLE, IN 47714(812) 485-4000 Get Directions Write a Review

NPPES record last updated: December 23, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 23, 2025, May 18, 2023, Mar 26, 2023 and 1 more (4 updates tracked since 2018).

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About William Hsu Md NPPES

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

WILLIAM HSU MD (NPI 1578854725) is an individual internal medicine provider in Evansville, Indiana, licensed in New Hampshire (24560) and active in the NPI registry since April 2011. He is enrolled in Medicare PECOS, is affiliated with Ascension St Vincent Hospital, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1578854725

Entity TypeIndividualMale

Primary Taxonomy207R00000X

Provider Legal NameWILLIAM HSUCredential: MD

Location Address3700 WASHINGTON AVEEvansville, IN 47714-0541

Mailing AddressPo Box 810Hanover, NH 03755-0810 · (603) 308-1472

Phone(812) 485-4000

Sole ProprietorNo

Medical School CMSOtherGraduated 2011

Enumeration DateApril 22, 2011

Last NPPES UpdateDecember 23, 20254 updates tracked since enumeration

NPPES CertifiedDecember 23, 2025

✔ NPI 1578854725 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Licenses✔ Licensed in NH · 24560✔ Licensed in IN · 01080315A✔ Licensed in GA · 072370

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Also ListedHospitalistTaxonomy 208M00000X · License 24560 (NH)

3700 WASHINGTON AVE, Evansville, IN 47714

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include CareSource, Oscar Insurance Company.Insurance ›

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

William Hsu Md 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 ID1557583754

PECOS Enrollment IDI20180608002274, I20230630000435, I20240123003312, I20251224000762

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.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

158 services63 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

60 services29 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

29 services29 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

29 services29 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

27 services27 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

22 services22 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension St Vincent Hospital

Acute Care Hospitals · Indianapolis, IN

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number150084

Location2001 W 86th StIndianapolis, IN 46260 · Marion County

Emergency services Birthing friendly

Susan B Allen Memorial Hospital

Acute Care Hospitals · El Dorado, KS

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number170017

Location720 W Central StEl Dorado, KS 67042 · Butler County

Emergency services Birthing friendly

Wesley Medical Center

Acute Care Hospitals · Wichita, KS

5/5 CMS rating

OwnershipProprietary

CMS Certification Number170123

Location550 N Hillside StreetWichita, KS 67214 · Sedgwick County

Emergency services Birthing friendly

Brattleboro Memorial Hospital

Acute Care Hospitals · Brattleboro, VT

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number470011

Location17 Belmont AveBrattleboro, VT 05301 · Windham County

Emergency services Birthing friendly

Southwestern Vermont Medical Center

Acute Care Hospitals · Bennington, VT

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number470012

Location100 Hospital DriveBennington, VT 05201 · Bennington County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 47714 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

$122.49 typical visit price

range $53.07 – $161.76

Typical copayment $30.62 (range $13.26 – $40.44)

Most-billed visit code 99204

Established Patient

$94.22 typical visit price

range $16.93 – $132.22

Typical copayment $23.55 (range $4.23 – $33.05)

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 20

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

ST. MARY'S HEALTH, INC.

Durable Medical Equipment & Medical Supplies