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

Dr. Maria Sandra Alzona Umali, MD

Individual provider Gastroenterology Physician · NPI 1790817328

Dr. Maria Sandra Alzona Umali, MD is a Gastroenterology in Newhall, California. Qualified in 1974, 52 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
52
Licensed in
CA
In the registry since
2007
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

22621 Lyons Ave
Newhall, CA 91321-1702
Phone: (661) 964-0597
Fax: (661) 964-0598
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence A34940 (CA)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence A34940 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A34940 (CA)

Record details

NPI number1790817328
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 9, 2007
Last updated in NPPESMarch 7, 2023

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 1974 (52 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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