Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Tameem Alhayya, MD

Individual provider Internal Medicine Physician · NPI 1649283557

Dr. Tameem Alhayya, MD practises Internal Medicine in Corona, California. Qualified in 2002, 24 years ago. Practices with Hospitalist Group of Montebello Inc, a 56-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
24
Licensed in
CA
In the registry since
2006
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

250 E Rincon St Ste 106
Corona, CA 92879-1363
Phone: (951) 339-8459
Fax: (951) 339-8461
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Nephrology Physician (primary) Taxonomy 207RN0300X · Licence A125541 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A125541 (CA)
Hospitalist Physician Taxonomy 208M00000X · Licence A125541 (CA)

Record details

NPI number1649283557
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 14, 2006
Last updated in NPPESMarch 28, 2025
Certification dateMarch 28, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Hospitalist Group Of Montebello Inc — 56 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients672
Services billed 5,040 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Also affiliated with 2 long-term care hospitals, which CMS identifies by certification number only.

Colleagues at Hospitalist Group of Montebello Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 56 clinicians in the practice; 12 are shown here.

Other providers in Corona