Dr Ronnie Alas, MD - Medicare Internal Medicine in Santa Ana, CA

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Dr Ronnie Alas, MD is a medicare enrolled "Internal Medicine" physician in Santa Ana, California. His current practice location is 3501 S Harbor Blvd, Santa Ana, California. You can reach out to his office (for appointments etc.) via phone at (714) 929-2300.

Dr Ronnie Alas is licensed to practice in California (license number A132456) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1306267026.

Contact Information

Dr Ronnie Alas, MD
3501 S Harbor Blvd,
Santa Ana, CA 92704-6919
(714) 929-2300
Not Available

Map and Direction




Physician's Profile

Full NameDr Ronnie Alas
GenderMale
SpecialityInternal Medicine
Location3501 S Harbor Blvd, Santa Ana, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1306267026
  • Provider Enumeration Date: 12/23/2013
  • Last Update Date: 12/02/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5597067421
  • Enrollment ID: I20160108000564

Medical Identifiers

Medical identifiers for Dr Ronnie Alas such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1306267026NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A132456 (California)Primary

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 Ronnie Alas allows following entities to bill medicare on his behalf.
Entity NameBeaver Medical Group P C
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1649503319
PECOS PAC ID: 0547164295
Enrollment ID: O20031124000449
Entity NameHealthcare Partners Affiliates Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659312593
PECOS PAC ID: 7315842002
Enrollment ID: O20031204001258
Entity NameSaddleback Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1386605822
PECOS PAC ID: 5092606905
Enrollment ID: O20040322000770
Entity NamePinnacle Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376876912
PECOS PAC ID: 4880667609
Enrollment ID: O20040818001020
Entity NameCenters For Family Medicine Gp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1467598243
PECOS PAC ID: 9931143799
Enrollment ID: O20050614000191

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 Ronnie Alas 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 Ronnie Alas, MD
Po Box 35380,
Las Vegas, NV 89133-5380

Ph: (702) 579-3203		Dr Ronnie Alas, MD
3501 S Harbor Blvd,
Santa Ana, CA 92704-6919

Ph: (714) 929-2300

Reviews and Comments


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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.