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HASSAN CHAHINE MD INC
NPI 1245851815
Internal Medicine in Laguna Hills, CA

Active since May 05, 2020
23141 VERDUGO DR STE 201, LAGUNA HILLS, CA 92653(949) 215-5055(949) 326-5099 Get Directions Write a Review

NPPES record last updated: April 7, 2021. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 7, 2021, May 5, 2020 (2 updates tracked since 2020).

About Hassan Chahine Md Inc NPPES

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

HASSAN CHAHINE MD INC (NPI 1245851815) is a healthcare organization registered as an internal medicine in Laguna Hills, California and active in the NPI registry since May 2020. The organization lists Hassan Chahine, Owner, as its authorized official.

NPPES Registry Identity

NPI1245851815
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameHASSAN CHAHINE MD INC
Location Address23141 VERDUGO DR STE 201Laguna Hills, CA 92653-1341
Mailing Address23141 Verdugo Dr Ste 201Laguna Hills, CA 92653-1341 · (949) 215-5055 · Fax (949) 326-5099
Phone(949) 215-5055
Fax(949) 326-5099
Organization SubpartNo
Authorized OfficialHassan ChahineOwner · (949) 215-5055
Enumeration DateMay 5, 2020
Last NPPES UpdateApril 7, 20212 updates tracked since enumeration
NPPES CertifiedApril 7, 2021
✔ NPI 1245851815 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
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.
23141 VERDUGO DR STE 201, Laguna Hills, CA 92653
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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)

Hassan Chahine Md Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

9

Medicare enrollment records show 9 clinicians reassign Medicare billing to Hassan Chahine MD Inc, which bills Medicare for the services they deliver. Of these, 4 practice at this address. They are listed nearest first.

Clinicians, nearest first (9)

Desirae Mutuc, FNP-C
Nurse Practitioner
NPI 1215393384
23141 VERDUGO DR STE 201
Laguna Hills, CA 92653
(949) 215-5055
✔ PECOS✔ Accepts MedicareSame address
Jose Velasquez, MD
Family Practice
NPI 1053897561
23141 VERDUGO DR STE 201
Laguna Hills, CA 92653
(949) 215-5055
✔ PECOS✔ Accepts MedicareSame address
Swapna Phadnis, M.D.
Family Practice
NPI 1235420399
23141 VERDUGO DR STE 201
Laguna Hills, CA 92653
(949) 215-5055
✔ PECOS✔ Accepts MedicareSame address
Hussien Saab, MD
Internal Medicine
NPI 1245752500
23141 VERDUGO DR STE 201
Laguna Hills, CA 92653
(949) 215-5055
✔ PECOS✔ Accepts MedicareSame address
Michelle Lee, NP
Nurse Practitioner
NPI 1205642014
16224 HOLLYHOCK AVE
Chino, CA 91708
(626) 991-3127
✔ PECOS✔ Accepts Medicare23 mi
Andrea Glover, FNP-C
Nurse Practitioner
NPI 1962976019
12196 DUNLAP PL
Chino, CA 91710
(909) 573-5192
✔ PECOS✔ Accepts Medicare28 mi
Hassan Chahine, MD
Internal Medicine
NPI 1518326933
8301 FLORENCE AVE STE 301
Downey, CA 90240
(866) 333-3158
✔ PECOS✔ Accepts Medicare32 mi
Joan Filoteo, NP-C
Nurse Practitioner
NPI 1346010832
3621 MARTIN LUTHER KING JR BLVD STE 6
Lynwood, CA 90262
(310) 638-9977
✔ PECOS✔ Accepts Medicare34 mi
Raed El Hajjaoui, M.D.
Internal Medicine
NPI 1902224462
350 TERRACINA BLVD
Redlands, CA 92373
(909) 206-4495
✔ PECOS✔ Accepts Medicare41 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 Hassan Chahine MD Inc's NPI number?

The NPI number for Hassan Chahine MD Inc is 1245851815. It was assigned to this organization in the NPPES registry on May 5, 2020.

Where is Hassan Chahine MD Inc located?

Hassan Chahine MD Inc is located at 23141 Verdugo Dr Ste 201, Laguna Hills, CA 92653. The listed phone number is (949) 215-5055.

What is Hassan Chahine MD Inc's specialty?

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

Is Hassan Chahine MD Inc enrolled in Medicare?

Yes. Hassan Chahine MD Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Hassan Chahine MD Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 9 clinicians in 3 Medicare specialties reassign their Medicare billing to Hassan Chahine MD 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 (4), Internal Medicine (3) and Family Practice (2). Of these, 4 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Hassan Chahine MD Inc was last updated on April 7, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.