Ammar Charestan, MD - Medicare Family Practice in San Diego, CA

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Ammar Charestan, MD is a medicare enrolled "Family Medicine" physician in San Diego, California. He graduated from medical school in 2010 and has 16 years of diverse experience with area of expertise as Family Practice. He is a member of the group practice Faculty Physicians And Surgeons Of Llusm, East County Urgent Care Industrial And Medical Clinic Inc and his current practice location is 300 Fir St Fl 1, San Diego, California. You can reach out to his office (for appointments etc.) via phone at (619) 446-1575.

Ammar Charestan is licensed to practice in California (license number A166970) 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 1295181543.

Contact Information

Ammar Charestan, MD
300 Fir St Fl 1,
San Diego, CA 92101-2393
(619) 446-1575
Not Available

Map and Direction




Physician's Profile

Full NameAmmar Charestan
GenderMale
SpecialityFamily Practice
Experience16 Years
Location300 Fir St Fl 1, San Diego, 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:
  • Ammar Charestan graduated from medical school in 2010
  NPI Data:
  • NPI Number: 1295181543
  • Provider Enumeration Date: 05/05/2016
  • Last Update Date: 08/13/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 3779874110
  • Enrollment ID: I20201229002769

Medical Identifiers

Medical identifiers for Ammar Charestan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295181543NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 4301500313 (Michigan)Secondary
207Q00000XFamily Medicine A166970 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Faculty Physicians And Surgeons Of Llusm11532278141153
East County Urgent Care Industrial And Medical Clinic Inc52949273567

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. Ammar Charestan allows following entities to bill medicare on his behalf.
Entity NameSouthern California Permanente Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1770515280
PECOS PAC ID: 6002729175
Enrollment ID: O20031110000678
Entity NameSharp Rees-stealy Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285616177
PECOS PAC ID: 8628972759
Enrollment ID: O20031120000996
Entity NameFaculty Physicians And Surgeons Of Llusm
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1205009917
PECOS PAC ID: 1153227814
Enrollment ID: O20031211000981
Entity NameSan Diego American Indian Health Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003902917
PECOS PAC ID: 9830096411
Enrollment ID: O20031212000923
Entity NameEast County Urgent Care Industrial & Medical Clinic Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417988668
PECOS PAC ID: 5294927356
Enrollment ID: O20101007000431
Entity NameFocus On Health Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497450530
PECOS PAC ID: 0648624254
Enrollment ID: O20231002001127

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. Ammar Charestan 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
Ammar Charestan, MD
1320 Lorna Ave,
El Cajon, CA 92020-7570

Ph: (310) 910-2169		Ammar Charestan, MD
300 Fir St Fl 1,
San Diego, CA 92101-2393

Ph: (619) 446-1575

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.