Dr James M Sonner, MD - Medicare Anesthesiology in San Francisco, CA

Dr James M Sonner, MD is a medicare enrolled "Anesthesiology" physician in San Francisco, California. He went to Harvard Medical School and graduated in 1988 and has 36 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Cedars-sinai Medical Care Foundation and his current practice location is 505 Parnassus Ave, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 476-2131.

Dr James M Sonner is licensed to practice in California (license number G67923) 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 1508819400.

Contact Information

Dr James M Sonner, MD
505 Parnassus Ave,
San Francisco, CA 94143-2204
(415) 476-2131
(415) 476-9516

Map and Direction




Physician's Profile

Full NameDr James M Sonner
GenderMale
SpecialityAnesthesiology
Experience36 Years
Location505 Parnassus Ave, San Francisco, 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 James M Sonner attended and graduated from Harvard Medical School in 1988
  NPI Data:
  • NPI Number: 1508819400
  • Provider Enumeration Date: 05/19/2006
  • Last Update Date: 05/18/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 7911080312
  • Enrollment ID: I20080207000689

Medical Identifiers

Medical identifiers for Dr James M Sonner such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1508819400NPI-NPPES
00G679230MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207L00000XAnesthesiology G67923 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Cedar-sinai Marina Del Rey HospitalMarina del rey, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Cedars-sinai Medical Care Foundation09411066451116

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 James M Sonner allows following entities to bill medicare on his behalf.
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NamePacific Valley Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851312862
PECOS PAC ID: 3577465368
Enrollment ID: O20040122000762
Entity NameCedars-sinai Medical Care Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316984388
PECOS PAC ID: 0941106645
Enrollment ID: O20040202000464
Entity NameUniversity Anesthesia Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1528137296
PECOS PAC ID: 2769370535
Enrollment ID: O20040304001219
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513

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 James M Sonner 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 James M Sonner, MD
1635 Divisadero Street, Suite 625, Box 1821,
San Francisco, CA 94143-0001

Ph: (415) 476-4029
Dr James M Sonner, MD
505 Parnassus Ave,
San Francisco, CA 94143-2204

Ph: (415) 476-2131

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).

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