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ANDREW C CHANG M.D.
NPI 1396702874
Internal Medicine - Gastroenterology in Loma Linda, CA

Active since April 27, 2006PECOS EnrolledAccepts Medicare Assignment
85.18/100
CMS Quality Rating
11370 ANDERSON ST # 3625, LOMA LINDA, CA 92354(909) 558-2850(909) 558-2424 Get Directions Write a Review

NPPES record last updated: June 23, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Andrew C Chang M.d. NPPES

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

ANDREW C CHANG M.D. (NPI 1396702874) is an individual gastroenterology provider in Loma Linda, California, licensed in California (G72746) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Grass Valley, and is a graduate of Loma Linda University School Of Medicine (1990).

NPPES Registry Identity

NPI1396702874
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameANDREW C CHANGCredential: M.D.
Location Address11370 ANDERSON ST # 3625Loma Linda, CA 92354-3450
Mailing Address11234 Anderson St # 1516Loma Linda, CA 92350-1716 · (909) 558-4905
Phone(909) 558-2850
Fax(909) 558-2424
Sole ProprietorNo
Medical School CMSLoma Linda University School Of MedicineGraduated 1990
Enumeration DateApril 27, 2006
Last NPPES UpdateJune 23, 2025
NPPES CertifiedJune 23, 2025
✔ NPI 1396702874 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 · G72746
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.
11370 ANDERSON ST # 3625, Loma Linda, CA 92354
Open in Google Maps ↗

Secondary Practice Location 1

Location 1300 Sierra College Dr, Ste.105Grass Valley, CA 95945-5082 · Phone (530) 273-3377

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

Andrew C Chang 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 ID5193893675
PECOS Enrollment IDI20081010000645
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 Reassignments

3

Medicare enrollment records show Andrew Chang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Faculty Physicians And Surgeons Of Llusm
Same address
Obstetrics & Gynecology
11370 ANDERSON STREET, SUITE 3900
Loma Linda, CA 92354
  • Reassigned Medicare billing, California enrollment
  • 2,584 clinicians in this Medicare group
NPI 1235189275 (909) 558-2806
Sac Health System
3.9 mi
Federally Qualified Health Center (FQHC)
1454 E 2ND ST
San Bernardino, CA 92408
  • Reassigned Medicare billing, California enrollment
  • 455 clinicians in this Medicare group
NPI 1013935915 (909) 382-7100
Sierra Nevada Gastroenterology Medical Associates, Inc.
415 mi
Specialist
300 SIERRA COLLEGE DR, STE.105
Grass Valley, CA 95945
  • Reassigned Medicare billing, California enrollment
  • 7 clinicians in this Medicare group
NPI 1407928641 (530) 273-3377

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 10

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.

Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
66 services66 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.
53 services53 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.
36 services26 patients
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223
Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.
35 services34 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
31 services31 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.
26 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92354 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
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.18/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.81
Promoting Interoperability82
Improvement Activities40
Cost64.54

Other Providers at the Same Location NPPES

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

DR. ARTIN GALOOSIAN M.D., M.A.
Internal Medicine (Gastroenterology)
11370 ANDERSON ST # 3625
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2850

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 Andrew Chang's NPI number?

The NPI number for Andrew Chang is 1396702874. It was assigned to this individual provider in the NPPES registry on April 27, 2006.

Where is Andrew Chang located?

Andrew Chang practices at 11370 Anderson St # 3625, Loma Linda, CA 92354. The listed phone number is (909) 558-2850.

What is Andrew Chang's specialty?

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

Is Andrew Chang enrolled in Medicare?

Yes. Andrew Chang 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 organizations bill Medicare for Andrew Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Chang reassigns Medicare benefits to 3 organizations: Faculty Physicians And Surgeons Of Llusm (Loma Linda, CA), Sac Health System (San Bernardino, CA) and Sierra Nevada Gastroenterology Medical Associates, Inc. (Grass Valley, CA). Each 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 Andrew Chang'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 Andrew Chang was last updated on June 23, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 months 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.