Dr Maria Sandra Alzona Umali, MD - Medicare Gastroenterology in Newhall, CA

Dr Maria Sandra Alzona Umali, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Newhall, California. She graduated from medical school in 1974 and has 50 years of diverse experience with area of expertise as Gastroenterology. Her current practice location is 22621 Lyons Ave, Newhall, California. You can reach out to her office (for appointments etc.) via phone at (661) 964-0597.

Dr Maria Sandra Alzona Umali is licensed to practice in California (license number A34940) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1790817328.

Contact Information

Dr Maria Sandra Alzona Umali, MD
22621 Lyons Ave,
Newhall, CA 91321-1702
(661) 964-0597
(661) 964-0598

Map and Direction




Physician's Profile

Full NameDr Maria Sandra Alzona Umali
GenderFemale
SpecialityGastroenterology
Experience50 Years
Location22621 Lyons Ave, Newhall, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Maria Sandra Alzona Umali graduated from medical school in 1974
  NPI Data:
  • NPI Number: 1790817328
  • Provider Enumeration Date: 03/09/2007
  • Last Update Date: 03/07/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8426079559
  • Enrollment ID: I20051215000892

Medical Identifiers

Medical identifiers for Dr Maria Sandra Alzona Umali such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1790817328NPI-NPPES
05D1000027OtherCACLIA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology A34940 (California)Primary
207RC0000XInternal Medicine - Cardiovascular Disease A34940 (California)Secondary
207R00000XInternal Medicine A34940 (California)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Assisted Home CareNorthridge, CAHome health agency
Henry Mayo Newhall HospitalValencia, CAHospital

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Maria Sandra Alzona Umali allows following entities to bill medicare on her behalf.
Entity NameMaria Sandra A Umali Md Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437494432
PECOS PAC ID: 1456503028
Enrollment ID: O20121205000134

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Maria Sandra Alzona Umali is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Maria Sandra Alzona Umali, MD
Po Box 221360,
Newhall, CA 91322-1360

Ph: (661) 964-0597
Dr Maria Sandra Alzona Umali, MD
22621 Lyons Ave,
Newhall, CA 91321-1702

Ph: (661) 964-0597

Reviews and Comments


Internal Medicine Doctors in Newhall, CA

Mr. Michael C Jean, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 23928 Lyons Ave, Suite 206, Newhall, CA 91321
Phone: 661-799-0615    Fax: 661-254-3185
Harold E Quan,
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 23928 Lyons Ave, Suite 101, Newhall, CA 91321
Phone: 661-255-8321    Fax: 661-255-0338
Dr. Adel K El-bialy, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 23928 Lyons Ave Ste 201, Newhall, CA 91321
Phone: 661-254-6600    Fax: 661-254-6603
Steven Harvey Baron, MD PHD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 23928 Lyons Ave, #107, Newhall, CA 91321
Phone: 661-254-2220    Fax: 661-254-3792
Dr. Raymond J Dorio, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 24237 Main St, Newhall, CA 91321
Phone: 661-259-6302    
Wendy Glasgow Clough, M.D.
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 23928 Lyons Ave, 208, Newhall, CA 91321
Phone: 661-255-8544    
Dr. Rajinder Kaushal, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 23928 Lyons Ave, Suite 206, Newhall, CA 91321
Phone: 661-799-0615    Fax: 661-254-3185

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.