Dr Sergio Guillermo Casillas Berumen, MD - Medicare General Surgery in Chula Vista, CA

Dr Sergio Guillermo Casillas Berumen, MD is a medicare enrolled "Surgery - Vascular Surgery" physician in Chula Vista, California. He graduated from medical school in 2008 and has 16 years of diverse experience with area of expertise as General Surgery. He is a member of the group practice Sasha Salloum Md Inc A Professional Medical Corporation and his current practice location is 1111 Broadway Ste 305, Chula Vista, California. You can reach out to his office (for appointments etc.) via phone at (619) 567-7007.

Dr Sergio Guillermo Casillas Berumen is licensed to practice in California (license number C185956) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1437470762.

Contact Information

Dr Sergio Guillermo Casillas Berumen, MD
1111 Broadway Ste 305,
Chula Vista, CA 91911-2700
(619) 567-7007
(619) 567-7775

Map and Direction




Physician's Profile

Full NameDr Sergio Guillermo Casillas Berumen
GenderMale
SpecialityGeneral Surgery
Experience16 Years
Location1111 Broadway Ste 305, Chula Vista, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Sergio Guillermo Casillas Berumen graduated from medical school in 2008
  NPI Data:
  • NPI Number: 1437470762
  • Provider Enumeration Date: 06/22/2010
  • Last Update Date: 03/26/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 9234389115
  • Enrollment ID: I20230725001980

Medical Identifiers

Medical identifiers for Dr Sergio Guillermo Casillas Berumen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1437470762NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2086S0129XSurgery - Vascular Surgery C185956 (California)Primary
208600000XSurgery MT196707 (Pennsylvania)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Scripps Mercy HospitalSan diego, CAHospital
Paradise Valley HospitalNational city, CAHospital
Palomar Health Downtown CampusEscondido, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Sasha Salloum Md Inc A Professional Medical Corporation59910121308

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 Sergio Guillermo Casillas Berumen allows following entities to bill medicare on his behalf.
Entity NameSasha Salloum Md Inc A Professional Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1578949889
PECOS PAC ID: 5991012130
Enrollment ID: O20151007001277

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 Sergio Guillermo Casillas Berumen 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 Sergio Guillermo Casillas Berumen, MD
1045 E Pennsylvania Ave,
Escondido, CA 92025-4616

Ph: (760) 884-4500
Dr Sergio Guillermo Casillas Berumen, MD
1111 Broadway Ste 305,
Chula Vista, CA 91911-2700

Ph: (619) 567-7007

Reviews and Comments


Surgery Doctors in Chula Vista, CA

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Dr. Stephen Thomas Summers, M.D.
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Phone: 619-425-0797    

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.