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Hayam Hussein

Physician β€’ Fullerton, CA

Active NPI 1285590554 Individual Practitioner Female Practitioner
Practice location in NPPES

618 S Gilbert St
Fullerton, CA 928333614

Call 7148634548 Location details and other listings
Medical Disclaimer

This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.

Practice Location & Contact Primary Location

Practice Address

618 S Gilbert St

Fullerton, CA 928333614

Telephone 7148634548
Organization at the Same NPPES Address or Phone
Dr Rita Kar Inc Facility NPI 1003136177

Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.

Other Listings in Public Data

NPPES lists 1 additional practice-address record in San Dimas, CA. See the list

Source: CMS NPPES NPI Registry, practice location records; release date unavailable.

Listings do not confirm current availability, employment or a shared ownership network.

NPI first issued

2025

The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.

What this does not show: NPI first issued

NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.

Source: CMS NPPES NPI Registry.

Medicare assignment not listed

CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.

Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.

Source: CMS Doctors and Clinicians; Medicare.gov, β€œDoes your provider accept Medicare as full payment?”

Guide: What Medicare assignment means

No telehealth indicator

CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.

Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.

Guide: How Medicare covers telehealth

Sources: CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.

Text: T-MedInfo Β· Report an error.

Specialties & License Numbers Reported to NPPES

Self-certified to NPPES: 2025-12-30
Clinical Medical Laboratory Primary Specialty

NUCC Taxonomy Code: 291U00000X

License # reported to NPPES CA MTA-02244510

(1) A clinical laboratory is a facility for the biological, microbiological, serological, chemical, immunohematological, hematological, biophysical, cytological, pathological, or other examination of materials derived from the human body for the purpose of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, human beings. These examinations also include procedures to determine, measure, or otherwise describe the presence or absence of various substances or organisms in the body. Facilities only collecting or preparing specimens (or both) or only serving as a mailing service and not performing testing are not considered clinical laboratories. (2) Any facility that examines materials from the human body for purposes of providing information for the diagnosis, prevention, or treatment of any disease or impairment of, or the assessment of, the health of human beings. Typical divisions of a clinical laboratory include hematology, cytology, bacteriology, histology, biochemistry, medical toxicology, and serology.

Check License Status with the State Board License numbers are self-reported to NPPES; T-MedInfo does not confirm them against state records. Current status: Medical Board of California.
Look Up on State Board Site

Secondary Practice Locations

430 S Cataract Ave

San Dimas, CA 917732902

Phone: 8887029042

Career & Practice History Timeline

Changes recorded in monthly NPPES data files: addresses, names, credentials, specialties and NPI status

7 Historical Events
βœ…
NPI Profile Active December 31, 2025

NPI status registered as active in NPPES database

πŸ“
Practice Location (Initial Record) December 31, 2025

Registered at 618 S GILBERT ST, FULLERTON, CA 928333614 (Tel: 7148634548)

πŸ“
Business Mailing Address (Initial Record) December 31, 2025

Registered at 12401 WASHINGTON BLVD, WHITTIER, CA 906021006 (Tel: 5626980811)

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Secondary Practice Location Registered December 31, 2025

Additional practice office at 430 S Cataract Ave, San Dimas, CA 917732902

πŸ‘€
Provider Name / Credentials (Initial Record) December 31, 2025

Recorded as HAYAM HUSSEIN

πŸŽ“
Medical Taxonomy / Specialty Registered (Primary Specialty) December 31, 2025

Clinical Medical Laboratory (license number reported to NPPES: CA MTA-02244510)

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Initial NPI Registration & Enumeration December 31, 2025

First registered as active Individual Practitioner in NPPES Database.

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NPI Administrative Meta

NPI Number: 1285590554
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: December 31, 2025
Last Update: December 31, 2025
Sole Proprietor: No

Mailing Address

12401 Washington Blvd

Whittier, CA 906021006

Phone: 5626980811

About This Data NPPES fields (address, phone, specialty, license) are self-reported and may be outdated; Medicare fields follow the CMS dataset named in each section. Correct directly at NPPES.