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MONTES MEDICAL GROUP INC
NPI 1437487956
Family Medicine in Los Angeles, CA

Active since November 20, 2009CLIA 05D2003051 · Waiver
4545 E 3RD ST, #102, LOS ANGELES, CA 90022(323) 266-7888(323) 266-7997 Get Directions Write a Review

NPPES record last updated: May 21, 2015. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Montes Medical Group Inc NPPES

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

MONTES MEDICAL GROUP INC (NPI 1437487956) is a healthcare organization registered as a family medicine in Los Angeles, California and active in the NPI registry since November 2009. The organization holds a CLIA Waiver certificate valid through January 31, 2028 and lists Juan Zepeda Montes, President, as its authorized official.

NPPES Registry Identity

NPI1437487956
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameMONTES MEDICAL GROUP INC
Location Address4545 E 3RD ST, #102Los Angeles, CA 90022-1656
Mailing Address4545 E 3rd St, #102Los Angeles, CA 90022-1656 · (323) 266-7888 · Fax (323) 266-7997
Phone(323) 266-7888
Fax(323) 266-7997
Organization SubpartNo
Authorized OfficialJuan Zepeda MontesPresident · (562) 205-3404
Enumeration DateNovember 20, 2009
Last NPPES UpdateMay 21, 2015
✔ NPI 1437487956 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ 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.
Also ListedInternal MedicineTaxonomy 207R00000X
Also ListedPediatricsTaxonomy 208000000X
4545 E 3RD ST, Los Angeles, CA 90022
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-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)

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

Clinicians Billing Medicare Through This Organization

11

Medicare enrollment records show 11 clinicians reassign Medicare billing to Montes Medical Group Inc, which bills Medicare for the services they deliver. Of these, 6 practice within 10 miles. They are listed nearest first.

Clinicians by Medicare Specialty 4

Nurse Practitioner7
Family Practice2
Internal Medicine1
Pediatric Medicine1

Clinicians, nearest first (11)

Elisha Charest, NP
Nurse Practitioner
NPI 1487477162
11822 FLORAL DR
Whittier, CA 90601
(562) 908-4355
✔ PECOS7.4 mi
Laura Tellinghuisen
Nurse Practitioner
NPI 1730682188
11822 FLORAL DR
Whittier, CA 90601
(562) 908-4355
✔ PECOS7.4 mi
Alejandro Montes, M.D.
Pediatric Medicine
NPI 1265525786
11822 FLORAL DR
Whittier, CA 90601
(562) 908-4355
✔ PECOS7.4 mi
Juan Montes, M.D.
Internal Medicine
NPI 1548353055
11822 FLORAL DR
Whittier, CA 90601
(562) 908-4355
✔ PECOS✔ Accepts Medicare7.4 mi
Alex Tran, M.D.
Family Practice
NPI 1437259348
11822 FLORAL DR
Whittier, CA 90601
(562) 908-4355
✔ PECOS✔ Accepts Medicare7.4 mi
Celina Kotanjian, NP-C
Nurse Practitioner
NPI 1417582313
11822 FLORAL DR
Whittier, CA 90601
(562) 908-4355
✔ PECOS7.4 mi
Melanie Vargas, NP
Nurse Practitioner
NPI 1265255954
289 W HUNTINGTON DR STE 207
Arcadia, CA 91007
(626) 461-7076
✔ PECOS10 mi
Ana Bejinez-Eastman, M.D.
Family Practice
NPI 1952359671
13820 SAN ANTONIO DR
Norwalk, CA 90650
(562) 944-2181
✔ PECOS10 mi
Margaret Corona, FNP-C
Nurse Practitioner
NPI 1427738236
13820 SAN ANTONIO DR
Norwalk, CA 90650
(562) 944-2181
✔ PECOS10 mi
Lucy Serrano, FNP-C
Nurse Practitioner
NPI 1750057204
13820 SAN ANTONIO DR
Norwalk, CA 90650
(562) 317-1532
✔ PECOS10 mi
Shirley Romero, FNP
Nurse Practitioner
NPI 1518504299
731 S HIGHLAND AVE
Fullerton, CA 92832
(714) 446-5100
✔ PECOS18 mi

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

CLIA Laboratory Certificates CMS CLIA

Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.

Certificate of Waiver 05D2003051

Montes Medical Group Inc · Los Angeles, CA
Active · expires Jan 31, 2028
CLIA Number05D2003051
Laboratory TypePhysician Office
Certificate Effective DateFebruary 1, 2026
Certificate Expiration DateJanuary 31, 2028
Laboratory DirectorJuan Montes
Laboratory Phone(323) 266-7888
Laboratory LocationMontes Medical Group Inc4545 E 3rd St Ste 102, Los Angeles, CA 90022
CLIA data matches this NPI record on: Address Name Phone
This certificate is issued to a laboratory to perform only waived tests.

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 Montes Medical Group Inc's NPI number?

The NPI number for Montes Medical Group Inc is 1437487956. It was assigned to this organization in the NPPES registry on November 20, 2009.

Where is Montes Medical Group Inc located?

Montes Medical Group Inc is located at 4545 E 3rd St #102, Los Angeles, CA 90022. The listed phone number is (323) 266-7888.

What is Montes Medical Group Inc's specialty?

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

Is Montes Medical Group Inc enrolled in Medicare?

Yes. Montes Medical Group Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Montes Medical Group Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 11 clinicians in 4 Medicare specialties reassign their Medicare billing to Montes Medical Group Inc. 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. The largest specialties are Nurse Practitioner (7), Family Practice (2) and Internal Medicine (1). Of these, 6 practice within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does Montes Medical Group Inc hold a CLIA laboratory certificate?

Yes. A Certificate of Waiver (number 05D2003051) is associated with this NPI, valid through January 31, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for Montes Medical Group Inc was last updated on May 21, 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.