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MOHAMED NASSAR M.D.
NPI 1992342539
Internal Medicine in Redlands, CA

Active since December 03, 2019
255 TERRACINA BLVD STE 105, REDLANDS, CA 92373(909) 793-6526 Get Directions Write a Review

NPPES record last updated: March 13, 2020. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 13, 2020, Feb 12, 2020, Dec 3, 2019 (3 updates tracked since 2019).

About Mohamed Nassar M.d. NPPES

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

MOHAMED NASSAR M.D. (NPI 1992342539) is a healthcare organization registered as an internal medicine in Redlands, California and active in the NPI registry since December 2019. The organization lists Mohamed Nassar, Director, as its authorized official.

NPPES Registry Identity

NPI1992342539
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameHSI SERVICES INC
Location Address255 TERRACINA BLVD STE 105Redlands, CA 92373-4870
Mailing Address255 Terracina Blvd Ste 105Redlands, CA 92373-4870 · (909) 793-0323
Phone(909) 793-6526
Organization SubpartNo
Authorized OfficialMohamed NassarDirector · (909) 793-0323
Enumeration DateDecember 3, 2019
Last NPPES UpdateMarch 13, 20203 updates tracked since enumeration
NPPES CertifiedMarch 13, 2020
✔ NPI 1992342539 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.
255 TERRACINA BLVD STE 105, Redlands, CA 92373
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Other Names 1

Other NameMohamed Nassar M.d.

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)

Mohamed Nassar M.d. 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 Mohamed Nassar M.D., which bills Medicare for the services they deliver. Of these, 2 practice within 10 miles. They are listed nearest first.

Clinicians, nearest first (2)

Mohamed Nassar
Internal Medicine
NPI 1346545043
255 TERRACINA BLVD STE 105
Redlands, CA 92373
(909) 793-0323
✔ PECOS✔ Accepts Medicare0.1 mi
Annette Minicucci, NP
Nurse Practitioner
NPI 1710374178
1600 E CITRUS AVE
Redlands, CA 92374
(909) 794-3628
✔ PECOS✔ Accepts Medicare1.2 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 Hsi Services Inc's NPI number?

The NPI number for Hsi Services Inc is 1992342539. It was assigned to this organization in the NPPES registry on December 3, 2019. The provider is also known as Mohamed Nassar M.D..

Where is Hsi Services Inc located?

Hsi Services Inc is located at 255 Terracina Blvd Ste 105, Redlands, CA 92373. The listed phone number is (909) 793-6526.

What is Hsi Services Inc's specialty?

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

Is Hsi Services Inc enrolled in Medicare?

Yes. Hsi Services Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Hsi Services Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Hsi Services Inc, in Internal Medicine and Nurse Practitioner. 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, 2 practice 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 Hsi Services Inc was last updated on March 13, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.