Dr Benjamin Yim, MD - Medicare Neurosurgery in Walnut Creek, CA

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Dr Benjamin Yim, MD is a medicare enrolled "Neurological Surgery" physician in Walnut Creek, California. He went to Albany Medical College Of Union University and graduated in 2014 and has 11 years of diverse experience with area of expertise as Neurosurgery. He is a member of the group practice John Muir Trauma Physicians Billing Service, Bass Medical Group, Benjamin Yim Md Apc and his current practice location is 120 La Casa Via Ste 102, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (925) 867-1900.

Dr Benjamin Yim is licensed to practice in California (license number A143498) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1598176604.

Contact Information

Dr Benjamin Yim, MD
120 La Casa Via Ste 102,
Walnut Creek, CA 94598-3092
(925) 867-1900
Not Available

Map and Direction




Physician's Profile

Full NameDr Benjamin Yim
GenderMale
SpecialityNeurosurgery
Experience11 Years
Location120 La Casa Via Ste 102, Walnut Creek, California
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Benjamin Yim attended and graduated from Albany Medical College Of Union University in 2014
  NPI Data:
  • NPI Number: 1598176604
  • Provider Enumeration Date: 05/12/2014
  • Last Update Date: 05/01/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 8426388232
  • Enrollment ID: I20210622003108

Medical Identifiers

Medical identifiers for Dr Benjamin Yim such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598176604NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207T00000XNeurological Surgery A143498 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
John Muir Medical Center - Walnut Creek CampusWalnut creek, CAHospital
John Muir Medical Center - Concord CampusConcord, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
John Muir Trauma Physicians Billing Service347654251581
Bass Medical Group9032111281279
Benjamin Yim Md Apc95376983372

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 Benjamin Yim allows following entities to bill medicare on his behalf.
Entity NameStanford Health Care
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1437292927
PECOS PAC ID: 6709797491
Enrollment ID: O20031124000348
Entity NameJohn Muir Trauma Physicians Billing Service
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093864837
PECOS PAC ID: 3476542515
Enrollment ID: O20050420001452
Entity NameLpch Medical Group Div Of Lucile
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417907940
PECOS PAC ID: 0840298543
Enrollment ID: O20061113000232
Entity NameBass Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174253405
PECOS PAC ID: 9032111281
Enrollment ID: O20070201000181
Entity NameMaxwell B Merkow Md A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1598290769
PECOS PAC ID: 8325317282
Enrollment ID: O20170707002927
Entity NameBenjamin Yim Md Apc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1922818111
PECOS PAC ID: 9537698337
Enrollment ID: O20250123001854

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 Benjamin Yim 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 Benjamin Yim, MD
130 La Casa Via Ste 210,
Walnut Creek, CA 94598-3035

Ph: (925) 309-5155		Dr Benjamin Yim, MD
120 La Casa Via Ste 102,
Walnut Creek, CA 94598-3092

Ph: (925) 867-1900

Reviews and Comments


Neurological Surgery Doctors in Walnut Creek, CA

Dr. Brandon Allan Mccutcheon, MD
Neurological Surgery
Medicare: May Accept Medicare Assignments
Practice Location: 2637 Shadelands Dr, Walnut Creek, CA 94598
Phone: 925-430-5335    Fax: 925-430-5446
Maxwell B Merkow, MD
Neurological Surgery
Medicare: May Accept Medicare Assignments
Practice Location: 130 La Casa Via # 2-210, Walnut Creek, CA 94598
Phone: 925-309-5155    Fax: 925-623-5156
George James Counelis, MD
Neurological Surgery
Medicare: May Accept Medicare Assignments
Practice Location: 100 N. Wiget Lane, Suite 160, Walnut Creek, CA 94598
Phone: 925-280-8200    Fax: 925-280-8201
Geoffrey Robert Adey, MD
Neurological Surgery
Medicare: Medicare Enrolled
Practice Location: 1455 Montego Street, Suite 200, Walnut Creek, CA 94598
Phone: 925-937-0404    Fax: 925-937-1340
Terence Ling Chen, MD
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 122 La Casa Via Ste 222, Walnut Creek, CA 94598
Phone: 925-937-0404    Fax: 925-937-1340
Dr. Jason S Cheng, MD
Neurological Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 110 La Casa Via, Suite 205, Walnut Creek, CA 94598
Phone: 925-464-3916    Fax: 925-954-7575

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.