ADAM I. CHEN MD
NPI 1821160300
Internal Medicine - Gastroenterology in Riverside, CA

Q: What is Adam Chen's NPI number?

The NPI number for Adam Chen is 1821160300. It was assigned to this individual provider in the NPPES registry on November 14, 2006.

Q: What is Adam Chen's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Adam Chen was last updated on November 22, 2021. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since November 14, 2006PECOS EnrolledAccepts Medicare Assignment

10800 MAGNOLIA AVE, RIVERSIDE, CA 92505(909) 353-2000 Get Directions Write a Review

NPPES record last updated: November 22, 2021. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Adam I. Chen Md NPPES

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

ADAM I. CHEN MD (NPI 1821160300) is an individual gastroenterology provider in Riverside, California, licensed in California (G61592) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of State University Of New York At Stony Brook, School Of Medicine (1983).

NPPES Registry Identity

NPI1821160300

Entity TypeIndividualMale

Primary Taxonomy207RG0100X

Provider Legal NameADAM I. CHENCredential: MD

Location Address10800 MAGNOLIA AVERiverside, CA 92505-3043

Mailing Address10800 Magnolia AveRiverside, CA 92505-3043 · (909) 353-2000

Phone(909) 353-2000

Sole ProprietorNo

Medical School CMSState University Of New York At Stony Brook, School Of MedicineGraduated 1983

Enumeration DateNovember 14, 2006

Last NPPES UpdateNovember 22, 2021

✔ NPI 1821160300 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 · G61592

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.

10800 MAGNOLIA AVE, Riverside, CA 92505

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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

Adam I. Chen 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 ID5597827907

PECOS Enrollment IDI20081218000673

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 92505 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.

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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.

KAISER PERMANENTE

General Acute Care Hospital