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HAN KYO K CHANG M.D
NPI 1235127150
Internal Medicine in Walnut Creek, CA

Active since October 13, 2005PECOS Enrolled
1434 STANLEY DOLLAR DR, UNIT 3B, WALNUT CREEK, CA 94595(716) 418-4665(925) 954-8696 Get Directions Write a Review

NPPES record last updated: November 30, 2022. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Han Kyo K Chang M.d NPPES

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

HAN KYO K CHANG M.D (NPI 1235127150) is an individual internal medicine provider in Walnut Creek, California, licensed in California (C138034) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1235127150
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameHAN KYO K CHANGCredential: M.D
Location Address1434 STANLEY DOLLAR DR, UNIT 3BWalnut Creek, CA 94595
Mailing Address1434 Stanley Dollar Dr, Unit 3bWalnut Creek, CA 94595 · (716) 418-4665 · Fax (925) 954-8696
Phone(716) 418-4665
Fax(925) 954-8696
Sole ProprietorYes
Enumeration DateOctober 13, 2005
Last NPPES UpdateNovember 30, 2022
NPPES CertifiedNovember 30, 2022
✔ NPI 1235127150 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · C138034
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 ListedSpecialistTaxonomy 174400000X · License 125005 (NY)
1434 STANLEY DOLLAR DR, Walnut Creek, CA 94595
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Other Identifiers 4

Other5071127NY · Comm Blue/bc
Other00010028501NY · Univera
Other0400458NY · Iha
Medicaid00602837NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Han Kyo K Chang 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 94595 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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 8

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
11 suppliers41 claims89 services$4.08 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
8 suppliers15 claims18 services$0.75 avg. paid by Medicare
Parenteral nutrition solution, not otherwise specified, 10 grams lipids B4185
Other-Enteral and Parenteral · category OB005N
1 supplier17 claims302 services$11.19 avg. paid by Medicare
Parenteral nutrition solution; compounded amino acid and carbohydrates with electrolytes, trace elements and vitamins, including preparation, any strength, 74 to 100 grams of protein - premix B4197
Other-Enteral and Parenteral · category OB005N
1 supplier17 claims105 services$278.52 avg. paid by Medicare
Parenteral nutrition supply kit; premix, per day B4220
Other-Enteral and Parenteral · category OB005N
1 supplier17 claims105 services$7.97 avg. paid by Medicare
Parenteral nutrition administration kit, per day B4224
Other-Enteral and Parenteral · category OB005N
1 supplier17 claims105 services$24.90 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Han Kyo Chang's NPI number?

The NPI number for Han Kyo Chang is 1235127150. It was assigned to this individual provider in the NPPES registry on October 13, 2005.

Where is Han Kyo Chang located?

Han Kyo Chang practices at 1434 Stanley Dollar Dr Unit 3B, Walnut Creek, CA 94595. The listed phone number is (716) 418-4665.

What is Han Kyo Chang's specialty?

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

Is Han Kyo Chang enrolled in Medicare?

Yes. Han Kyo Chang is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Han Kyo Chang was last updated on November 30, 2022. NPI Profile syncs with the weekly NPPES data releases published by CMS.