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DR. CALVIN MINH DUONG M.D.
NPI 1184646119
Internal Medicine in Colton, CA

Active since July 25, 2006PECOS EnrolledAccepts Medicare Assignment
1300 E COOLEY DR, COLTON, CA 92324(909) 370-4100(909) 370-1549 Get Directions Write a Review

NPPES record last updated: December 2, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Calvin Minh Duong M.d. NPPES

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

DR. CALVIN MINH DUONG M.D. (NPI 1184646119) is an individual internal medicine provider in Colton, California, licensed in California (A91752) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1184646119
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. CALVIN MINH DUONGCredential: M.D.
Location Address1300 E COOLEY DRColton, CA 92324-3905
Mailing AddressPo Box 10069San Bernardino, CA 92423-0069 · (909) 335-4188 · Fax (909) 793-2916
Phone(909) 370-4100
Fax(909) 370-1549
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateJuly 25, 2006
Last NPPES UpdateDecember 2, 2021
✔ NPI 1184646119 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 · A91752
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.
1300 E COOLEY DR, Colton, CA 92324
Open in Google Maps ↗

Other Identifiers 2

OtherA91752CA · Medical License
Medicaid1184646119CA

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. Calvin Minh Duong 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 ID4082704200
PECOS Enrollment IDI20100831000802
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 Calvin Duong reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Beaver Medical Group P C
6.8 mi
Family Medicine
2 WEST FERN AVENUE
Redlands, CA 92373
  • Reassigned Medicare billing, California enrollment
  • 635 clinicians in this Medicare group
NPI 1649503319 (909) 793-3311
Southern California Permanente Medical Group
7.3 mi
Health Maintenance Organization
9961 SIERRA AVE
Fontana, CA 92335
  • Reassigned Medicare billing, California enrollment
  • 5,228 clinicians in this Medicare group
NPI 1689606196 (909) 427-3910
Children's Hospital Los Angeles Medical Group, Inc.
57 mi
Multi-Specialty
4650 SUNSET BLVD
Los Angeles, CA 90027
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: Childrens Hospital Los Angeles Medical Group Inc
  • 1,281 clinicians in this Medicare group
NPI 1265530653 (323) 361-2337

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92324 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.

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.

GLEN R. GAERTE O.D.
Optometrist
1300 E COOLEY DR
COLTON, CA 92324
San Bernardino County (909) 370-4100
BEAVER MEDICAL GROUP, LP
Optometrist
1300 E COOLEY DR
COLTON, CA 92324
San Bernardino County (909) 370-4100
ARTURO SANTIAGO VAZQUEZ M.D.
Internal Medicine
1300 E COOLEY DR
COLTON, CA 92324
San Bernardino County (909) 370-4100
DR. KELVIN MA D.O.
Family Medicine
1300 E COOLEY DR
COLTON, CA 92324
San Bernardino County (909) 970-4100
CHRISTINE J RENTZ P.A.
Physician Assistant
1300 E COOLEY DR
COLTON, CA 92324
San Bernardino County (909) 370-4100
MRS. FRANCESCA AMANDA HARPER
Marriage & Family Therapist
1300 E COOLEY DR
COLTON, CA 92324
San Bernardino County (909) 580-3714
DR. DOUGLAS J. HAY MD
Internal Medicine
1300 E COOLEY DR
COLTON, CA 92324
San Bernardino County (909) 370-4100
USMAN SIDDIQUI
Family Medicine
1300 E COOLEY DR
COLTON, CA 92324
San Bernardino County (909) 370-4100

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 Calvin Duong's NPI number?

The NPI number for Calvin Duong is 1184646119. It was assigned to this individual provider in the NPPES registry on July 25, 2006.

Where is Calvin Duong located?

Calvin Duong practices at 1300 E Cooley Dr, Colton, CA 92324. The listed phone number is (909) 370-4100.

What is Calvin Duong's specialty?

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

Is Calvin Duong enrolled in Medicare?

Yes. Calvin Duong 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 Calvin Duong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Calvin Duong reassigns Medicare benefits to 3 organizations: Beaver Medical Group P C (Redlands, CA), Southern California Permanente Medical Group (Fontana, CA) and Children's Hospital Los Angeles Medical Group, Inc. (Los Angeles, 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 Calvin Duong'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 Calvin Duong was last updated on December 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.