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DR. DENNIS Y. CHAN M. D.
NPI 1053343434
Internal Medicine - Gastroenterology in Monterey Park, CA

Active since July 07, 2006PECOS EnrolledAccepts Medicare Assignment
500 N GARFIELD AVE, SUITE 107, MONTEREY PARK, CA 91754(626) 280-3225(626) 280-4222 Get Directions Write a Review

NPPES record last updated: March 3, 2015. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Dennis Y. Chan M. D. NPPES

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

DR. DENNIS Y. CHAN M. D. (NPI 1053343434) is an individual gastroenterology provider in Monterey Park, California, licensed in California (A43296) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1980).

NPPES Registry Identity

NPI1053343434
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDR. DENNIS Y. CHANCredential: M. D.
Location Address500 N GARFIELD AVE, SUITE 107Monterey Park, CA 91754-1242
Mailing AddressPo Box 6427Alhambra, CA 91802-6427 · (626) 280-3225 · Fax (626) 280-4222
Phone(626) 280-3225
Fax(626) 280-4222
Sole ProprietorYes
Medical School CMSOtherGraduated 1980
Enumeration DateJuly 7, 2006
Last NPPES UpdateMarch 3, 2015
✔ NPI 1053343434 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in CA · A43296
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
500 N GARFIELD AVE, Monterey Park, CA 91754
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Other Identifiers 4

Medicaid00A432961CA
Medicare PINA43296CA
Other00A432960Blue Shield
Medicare UPINE89842CA

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

Dr. Dennis Y. Chan M. D. 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 ID4183611635
PECOS Enrollment IDI20101022000014
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 7

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 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.
415 services294 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
228 services228 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
90 services90 patients
Diagnostic exam of large bowel using a flexible endoscope 45378
This procedure, known as a colonoscopy, involves using a flexible tube with a light and camera to examine the large intestine. It helps detect any abnormalities such as polyps or inflammation. It's a standard procedure to ensure gut health.
68 services68 patients
Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
44 services44 patients
Telephone medical discussion with physician, 11-20 minutes 99442
This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.
28 services28 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91754 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.

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.

ABC MEDICAL CLINIC, INC.
Dermatology
500 N GARFIELD AVE, SUITE 110A
MONTEREY PARK, CA 91754
Los Angeles County (626) 282-4840
C. GEORGE LAI, M.D., INC.
Internal Medicine (Gastroenterology)
500 N GARFIELD AVE, #100
MONTEREY PARK, CA 91754
Los Angeles County (626) 280-5009
FLEMING F CHEN MD INC
Obstetrics & Gynecology (Obstetrics)
500 N GARFIELD AVE, 305
MONTEREY PARK, CA 91754
Los Angeles County (626) 288-3600
CHIA CHI GEORGE LAI M.D.
Internal Medicine (Gastroenterology)
500 N GARFIELD AVE, 100
MONTEREY PARK, CA 91754
Los Angeles County (626) 280-5009
JIN Q YANG MD INC.
Clinic/Center (Primary Care)
500 N GARFIELD AVE, 110
MONTEREY PARK, CA 91754
Los Angeles County (626) 288-0091
DR. WENDY H WU D.P.M.
Podiatrist (Foot & Ankle Surgery)
500 N GARFIELD AVE, SUITE 210
MONTEREY PARK, CA 91754
Los Angeles County (626) 312-2000
JACK MORGAN, DPM, INC A PROFESSIONAL CORPORATION
Podiatrist (Foot & Ankle Surgery)
500 N GARFIELD AVE, 108
MONTEREY PARK, CA 91754
Los Angeles County (626) 288-2760
EDWARD J CHEN M.D.
Obstetrics & Gynecology
500 N GARFIELD AVE, 206
MONTEREY PARK, CA 91754
Los Angeles County (626) 288-4218

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 Dennis Chan's NPI number?

The NPI number for Dennis Chan is 1053343434. It was assigned to this individual provider in the NPPES registry on July 7, 2006.

Where is Dennis Chan located?

Dennis Chan practices at 500 N Garfield Ave Suite 107, Monterey Park, CA 91754. The listed phone number is (626) 280-3225.

What is Dennis Chan's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Dennis Chan enrolled in Medicare?

Yes. Dennis 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.

When was this NPI record last updated?

The NPPES record for Dennis Chan was last updated on March 3, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.