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DR. DAVID T. HSIEH M.D.
NPI 1891919874
Family Medicine in Diamond Bar, CA

Active since April 12, 2007PECOS Enrolled
1142 S DIAMOND BAR BLVD, STE. 366, DIAMOND BAR, CA 91765(909) 720-8122(909) 612-1034 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. David T. Hsieh M.d. NPPES

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

DR. DAVID T. HSIEH M.D. (NPI 1891919874) is an individual family medicine provider in Diamond Bar, California, licensed in California (A40716) and active in the NPI registry since April 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1891919874
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. DAVID T. HSIEHCredential: M.D.
Location Address1142 S DIAMOND BAR BLVD, STE. 366Diamond Bar, CA 91765-2203
Mailing Address1142 S Diamond Bar Blvd, Ste. 366Diamond Bar, CA 91765-2203
Phone(909) 720-8122
Fax(909) 612-1034
Sole ProprietorYes
Enumeration DateApril 12, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1891919874 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in CA · A40716
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1142 S DIAMOND BAR BLVD, Diamond Bar, CA 91765
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Other Identifiers 1

Medicare UPINA85496CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. David T. Hsieh M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91765 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
$96.36 typical visit price
range $62.96 – $187.60
Typical copayment $24.09 (range $15.74 – $46.90)
Most-billed visit code 99203
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.

Other Providers at the Same Location NPPES 2

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

MS. NAYAN M SHAH MD
Obstetrics & Gynecology
1142 S DIAMOND BAR BLVD, #186
DIAMOND BAR, CA 91765
Los Angeles County (909) 268-3899
PRO-HEALTH PATIENT CARE NETWORK, LLC
Home Health
1142 S DIAMOND BAR BLVD, #796
DIAMOND BAR, CA 91765
Los Angeles County (888) 666-9338

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 David Hsieh's NPI number?

The NPI number for David Hsieh is 1891919874. It was assigned to this individual provider in the NPPES registry on April 12, 2007.

Where is David Hsieh located?

David Hsieh practices at 1142 S Diamond Bar Blvd Ste. 366, Diamond Bar, CA 91765. The listed phone number is (909) 720-8122.

What is David Hsieh's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is David Hsieh enrolled in Medicare?

Yes. David Hsieh is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for David Hsieh was last updated on July 8, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.