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YU-NAN HSU D.O
NPI 1922382407
Hospitalist in Fountain Valley, CA

Active since October 03, 2011PECOS EnrolledAccepts Medicare Assignment
11037 WARNER AVE, SUITE 334, FOUNTAIN VALLEY, CA 92708(800) 641-4651(714) 751-1005 Get Directions Write a Review

NPPES record last updated: December 28, 2016. Verified against the NPPES registry weekly; last sync: August 30, 2026.

About Yu-nan Hsu D.o NPPES

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

YU-NAN HSU D.O (NPI 1922382407) is an individual hospitalist provider in Fountain Valley, California, licensed in California (20A11894) and active in the NPI registry since October 2011. He is enrolled in Medicare PECOS and is a graduate of Lake Erie College Of Osteopathic Medicine, Erie (2010).

NPPES Registry Identity

NPI1922382407
Entity TypeIndividualMale
Primary Taxonomy208M00000X
Provider Legal NameYU-NAN HSUCredential: D.O
Location Address11037 WARNER AVE, SUITE 334Fountain Valley, CA 92708-4007
Mailing Address11037 Warner Ave, Suite 334Fountain Valley, CA 92708-4007 · (800) 641-4651 · Fax (714) 751-1005
Phone(800) 641-4651
Fax(714) 751-1005
Sole ProprietorNo
Medical School CMSLake Erie College Of Osteopathic Medicine, ErieGraduated 2010
Enumeration DateOctober 3, 2011
Last NPPES UpdateDecember 28, 2016
✔ NPI 1922382407 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians
Taxonomy Code208M00000X
License✔ Licensed in CA · 20A11894
Definition
Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.
Also ListedInternal MedicineTaxonomy 207R00000X · License A11894 (CA)
11037 WARNER AVE, Fountain Valley, CA 92708
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Other Identifiers 1

Medicaid20A11894CA

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

Yu-nan Hsu D.o 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 ID7719110840
PECOS Enrollment IDI20140428000072
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 10

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 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.
1,038 services290 patients
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.
680 services234 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.
271 services242 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.
182 services173 patients
Advance care planning, first 30 minutes 99497
Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.
172 services145 patients
Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306
An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.
154 services128 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92708 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

Referred Medical Equipment & Supplies CMS DME claims 15

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035
Other-Enteral and Parenteral · category OB006N
4 suppliers18 claims493 services$4.35 avg. paid by Medicare
Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152
Other-Enteral and Parenteral · category OB006N
2 suppliers15 claims8,073 services$0.27 avg. paid by Medicare
Enteral nutrition infusion pump, any type B9002
Other-Enteral and Parenteral · category OB005N
3 suppliers13 claims13 services$53.07 avg. paid by Medicare
Walker, folding, wheeled, adjustable or fixed height E0143
DME-Other DME · category DE000N
3 suppliers18 claims18 services$39.38 avg. paid by Medicare
Hospital bed, semi-electric (head and foot adjustment), with any type side rails, without mattress E0261
DME-Hospital Beds · category DB000N
2 suppliers57 claims57 services$38.47 avg. paid by Medicare
Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431
DME-Oxygen and Supplies · category DC000N
4 suppliers37 claims37 services$13.67 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

YU-NAN HSU INC
Hospitalist
11037 WARNER AVE, SUITE 334
FOUNTAIN VALLEY, CA 92708
Orange County (800) 641-4651
ALICIA CARROLL SLP
Speech-Language Pathologist
11037 WARNER AVE, #339
FOUNTAIN VALLEY, CA 92708
Orange County (503) 298-5359
KRISTINA GUERRERO RBT
Technician, Other
11037 WARNER AVE, #339
FOUNTAIN VALLEY, CA 92708
Orange County (800) 273-4292
KRIS CHANG BT
Technician, Other
11037 WARNER AVE, #339
FOUNTAIN VALLEY, CA 92708
Orange County (800) 273-4292
DANIELLE BUSTAMANTE BCBA
Behavior Analyst
11037 WARNER AVE, #339
FOUNTAIN VALLEY, CA 92708
Orange County (800) 273-4292
TYLER VAN-HUY TRAN
Technician, Other
11037 WARNER AVE, #339
FOUNTAIN VALLEY, CA 92708
Orange County (800) 273-4292
GINA MCTAGGART
Behavior Analyst
11037 WARNER AVE
FOUNTAIN VALLEY, CA 92708
Orange County (800) 273-4292
ROCHELLE RODRIGUEZ RBT
Technician, Other
11037 WARNER AVE, #339
FOUNTAIN VALLEY, CA 92708
Orange County (800) 273-4292

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 Yu-nan Hsu's NPI number?

The NPI number for Yu-nan Hsu is 1922382407. It was assigned to this individual provider in the NPPES registry on October 3, 2011.

Where is Yu-nan Hsu located?

Yu-nan Hsu practices at 11037 Warner Ave Suite 334, Fountain Valley, CA 92708. The listed phone number is (800) 641-4651.

What is Yu-nan Hsu's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Is Yu-nan Hsu enrolled in Medicare?

Yes. Yu-nan Hsu 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.

When was this NPI record last updated?

The NPPES record for Yu-nan Hsu was last updated on December 28, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years 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.