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MODERN CONCEPTS MEDICAL GROUP
NPI 1194930420
Family Medicine in Pasadena, CA

Active since May 11, 2007
50 BELLEFONTAINE ST, 404, PASADENA, CA 91105(323) 728-6070(323) 728-2912 Get Directions Write a Review

NPPES record last updated: July 21, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Modern Concepts Medical Group NPPES

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

MODERN CONCEPTS MEDICAL GROUP (NPI 1194930420) is a healthcare organization registered as a family medicine in Pasadena, California and active in the NPI registry since May 2007. The organization lists Margaret Herrera, President, as its authorized official.

NPPES Registry Identity

NPI1194930420
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameMODERN CONCEPTS MEDICAL GROUP
Location Address50 BELLEFONTAINE ST, 404Pasadena, CA 91105-3132
Mailing AddressPo Box 640Montebello, CA 90640-0640 · (323) 728-6070 · Fax (323) 728-2912
Phone(323) 728-6070
Fax(323) 728-2912
Organization SubpartNo
Authorized OfficialMargaret HerreraPresident · (323) 728-6070
Enumeration DateMay 11, 2007
Last NPPES UpdateJuly 21, 2022
✔ NPI 1194930420 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
50 BELLEFONTAINE ST, Pasadena, CA 91105
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Other Identifiers 4

Other1346358827CA · Md
Medicaid6495234CA
MedicaidGR0084064CA
Other05D0936983CA · Clia Waiver

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Modern Concepts Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

2

Medicare enrollment records show 2 clinicians reassign Medicare billing to Modern Concepts Medical Group, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Gustavo Calleros, MD
Family Practice
NPI 1346358827
50 BELLEFONTAINE ST SUITE 401
Pasadena, CA 91105
(626) 793-1931
✔ PECOS✔ Accepts MedicareSame address
Rodolfo Arevalo, M.D.
Family Practice
NPI 1487692372
1217 W WHITTIER BLVD
Montebello, CA 90640
(323) 728-6070
✔ PECOS✔ Accepts Medicare8.6 mi

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

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 Modern Concepts Medical Group's NPI number?

The NPI number for Modern Concepts Medical Group is 1194930420. It was assigned to this organization in the NPPES registry on May 11, 2007.

Where is Modern Concepts Medical Group located?

Modern Concepts Medical Group is located at 50 Bellefontaine St 404, Pasadena, CA 91105. The listed phone number is (323) 728-6070.

What is Modern Concepts Medical Group's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Modern Concepts Medical Group enrolled in Medicare?

Yes. Modern Concepts Medical Group is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Modern Concepts Medical Group?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians, all in Family Practice, reassign their Medicare billing to Modern Concepts Medical Group. A 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 the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Modern Concepts Medical Group was last updated on July 21, 2022. 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.