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JOSEPH SHERMAN HSIAO MD
NPI 1699139287
Internal Medicine - Endocrinology, Diabetes & Metabolism in Orange, CA

Active since April 08, 2016PECOS EnrolledAccepts Medicare Assignment
2501 E CHAPMAN AVE STE 203, ORANGE, CA 92869(714) 628-3230 Get Directions Write a Review

NPPES record last updated: December 3, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Dec 3, 2025, Nov 3, 2021, Aug 5, 2021 and 1 more (4 updates tracked since 2020).

About Joseph Sherman Hsiao Md NPPES

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

JOSEPH SHERMAN HSIAO MD (NPI 1699139287) is an individual endocrinology, diabetes & metabolism provider in Orange, California, licensed in California (A153987) and active in the NPI registry since April 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2016).

NPPES Registry Identity

NPI1699139287
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameJOSEPH SHERMAN HSIAOCredential: MD
Location Address2501 E CHAPMAN AVE STE 203Orange, CA 92869-3204
Mailing Address2501 E Chapman AveOrange, CA 92869-3204 · (714) 628-3230
Phone(714) 628-3230
Sole ProprietorNo
Medical School CMSOtherGraduated 2016
Enumeration DateApril 8, 2016
Last NPPES UpdateDecember 3, 20254 updates tracked since enumeration
NPPES CertifiedDecember 3, 2025
✔ NPI 1699139287 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · A153987
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
2501 E CHAPMAN AVE STE 203, Orange, CA 92869
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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

Joseph Sherman Hsiao 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 ID648607689
PECOS Enrollment IDI20210816001981
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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
136 services81 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
47 services47 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
27 services20 patients
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report 95251
This procedure involves placing a small sensor under your skin to continuously monitor your blood sugar levels in tissue fluid. The data is interpreted and a report is generated to help manage your diabetes more effectively.
24 services11 patients
Hemoglobin a1c level 83036
Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.
21 services17 patients
Telephone medical discussion with physician, 5-10 minutes 99441
A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.
11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92869 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 2

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
8 suppliers15 claims52 services$6.53 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
3 suppliers35 claims35 services$181.02 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

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

LAWRENCE CARRILLO
Registered Nurse
2501 E CHAPMAN AVE STE 203
ORANGE, CA 92869
Orange County (714) 628-3230

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 Joseph Hsiao's NPI number?

The NPI number for Joseph Hsiao is 1699139287. It was assigned to this individual provider in the NPPES registry on April 8, 2016.

Where is Joseph Hsiao located?

Joseph Hsiao practices at 2501 E Chapman Ave Ste 203, Orange, CA 92869. The listed phone number is (714) 628-3230.

What is Joseph Hsiao's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Joseph Hsiao enrolled in Medicare?

Yes. Joseph Hsiao 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 Joseph Hsiao was last updated on December 3, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.