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DR. STEVE LI CHAN MD
NPI 1790750743
Internal Medicine in Diamond Bar, CA

Active since February 22, 2006PECOS EnrolledAccepts Medicare Assignment
660 N. DIAMOND BAR BLVD #118, DIAMOND BAR, CA 91765(909) 612-5835(909) 612-5836 Get Directions Write a Review

NPPES record last updated: August 2, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 2, 2018, Dec 10, 2015, Nov 13, 2015 (3 updates tracked since 2015).

About Dr. Steve Li Chan Md NPPES

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

DR. STEVE LI CHAN MD (NPI 1790750743) is an individual internal medicine provider in Diamond Bar, California, licensed in California (A63015) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (1995).

NPPES Registry Identity

NPI1790750743
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. STEVE LI CHANCredential: MD
Location Address660 N. DIAMOND BAR BLVD #118Diamond Bar, CA 91765
Mailing Address660 N. Diamond Bar Blvd #118Diamond Bar, CA 91765-1034 · (909) 612-5835 · Fax (909) 612-5836
Phone(909) 612-5835
Fax(909) 612-5836
Sole ProprietorNo
Medical School CMSAlbert Einstein College Of Medicine Of Yeshiva UniversityGraduated 1995
Enumeration DateFebruary 22, 2006
Last NPPES UpdateAugust 2, 20183 updates tracked since enumeration
✔ NPI 1790750743 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A63015
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.
660 N. DIAMOND BAR BLVD #118, Diamond Bar, CA 91765
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Other Identifiers 1

Medicaid00A630150CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Steve Li Chan 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 ID8921291410
PECOS Enrollment IDI20101015000976
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.

Medicare Billing Reassignment

Medicare enrollment records show Steve Chan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Steve Li Chan MD Inc
0.4 mi
Internal Medicine
1106 S DIAMOND BAR BLVD
Diamond Bar, CA 91765
  • Reassigned Medicare billing, California enrollment
NPI 1154624153 (909) 612-5835

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

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.
224 services109 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.
102 services74 patients
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439
An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.
80 services80 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
60 services52 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
54 services54 patients
Annual alcohol misuse screening, 5 to 15 minutes G0442
An annual alcohol misuse screening is a 15-minute check-up to assess your drinking habits. It helps identify if you're consuming alcohol in a way that could harm your health. This is not a judgment, but a tool to promote your wellbeing.
52 services52 patients

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
$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 3

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
10 suppliers29 claims56 services$4.60 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
10 suppliers22 claims28 services$0.85 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier11 claims11 services$67.52 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 Steve Chan's NPI number?

The NPI number for Steve Chan is 1790750743. It was assigned to this individual provider in the NPPES registry on February 22, 2006.

Where is Steve Chan located?

Steve Chan practices at 660 N. Diamond Bar Blvd #118, Diamond Bar, CA 91765. The listed phone number is (909) 612-5835.

What is Steve Chan's specialty?

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

Is Steve Chan enrolled in Medicare?

Yes. Steve Chan 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.

Which organization bills Medicare for Steve Chan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Steve Chan reassigns Medicare benefits to Steve Li Chan MD Inc (Diamond Bar, CA). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Steve Chan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Steve Chan was last updated on August 2, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.