Dr Jonathan Posin, MD - Medicare Diagnostic Radiology in Walnut Creek, CA

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Dr Jonathan Posin, MD is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Walnut Creek, California. He went to Boston University School Of Medicine and graduated in 1979 and has 45 years of diverse experience with area of expertise as Diagnostic Radiology. He is a member of the group practice John Muir Trauma Physicians Billing Service, University Of California Sfgh Medical Group, Bay Imaging Consultants Medical Group Inc and his current practice location is 2125 Oak Grove Rd, #200, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (925) 296-7150.

Dr Jonathan Posin is licensed to practice in California (license number G47350) 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 1396780425.

Contact Information

Dr Jonathan Posin, MD
2125 Oak Grove Rd, #200,
Walnut Creek, CA 94598-2536
(925) 296-7150
(925) 296-7171

Map and Direction




Physician's Profile

Full NameDr Jonathan Posin
GenderMale
SpecialityDiagnostic Radiology
Experience45 Years
Location2125 Oak Grove Rd, 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 Jonathan Posin attended and graduated from Boston University School Of Medicine in 1979
  NPI Data:
  • NPI Number: 1396780425
  • Provider Enumeration Date: 06/20/2006
  • Last Update Date: 04/02/2015
  Medicare PECOS Information:
  • PECOS PAC ID: 8224018049
  • Enrollment ID: I20040921000747

Medical Identifiers

Medical identifiers for Dr Jonathan Posin such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396780425NPI-NPPES
300035112OtherCARAILROAD MEDICARE
300096984OtherCARAILROAD MEDICARE
P00421388OtherCARAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology G47350 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
John Muir Medical Center - Walnut Creek CampusWalnut creek, CAHospital
John Muir Medical Center - Concord CampusConcord, CAHospital
Zuckerberg San Francisco General Hosp & Trauma CtrSan francisco, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
John Muir Trauma Physicians Billing Service3476542515127
University Of California Sfgh Medical Group5496668410488
Bay Imaging Consultants Medical Group Inc9537069125132

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 Jonathan Posin allows following entities to bill medicare on his behalf.
Entity NameUniversity Of California Sfgh Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1063487122
PECOS PAC ID: 5496668410
Enrollment ID: O20031106000503
Entity NameBay Imaging Consultants Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356597637
PECOS PAC ID: 9537069125
Enrollment ID: O20040110000189
Entity NameJohn Muir Magnetic Imaging Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235184110
PECOS PAC ID: 9032019625
Enrollment ID: O20040110000222
Entity NameMichael P Sherman Md Phd A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831201912
PECOS PAC ID: 9537113212
Enrollment ID: O20050304000741
Entity NameCity & County Of San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982737524
PECOS PAC ID: 1658280748
Enrollment ID: O20050309000770
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 NameMagnetic Imaging Affiliates Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487040770
PECOS PAC ID: 5496066961
Enrollment ID: O20150624002629

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 Jonathan Posin 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 Jonathan Posin, MD
2125 Oak Grove Rd, #200,
Walnut Creek, CA 94598-2536

Ph: (925) 296-7150		Dr Jonathan Posin, MD
2125 Oak Grove Rd, #200,
Walnut Creek, CA 94598-2536

Ph: (925) 296-7150

Reviews and Comments


Radiology Doctors in Walnut Creek, CA

Dr. Philip J. Rich, MD
Radiology
Medicare: Medicare Enrolled
Practice Location: 2125 Oak Grove Rd, #200, Walnut Creek, CA 94598
Phone: 925-296-7150    Fax: 925-296-7171
Dr. Harish Anandha Narayanan, M.D.
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-4000    
Dr. Jonathan Fish, M.D.
Radiology
Medicare: Medicare Enrolled
Practice Location: 2125 Oak Grove Rd, Suite 200, Walnut Creek, CA 94598
Phone: 925-296-7150    Fax: 925-296-7171
Dr. Joseph Chan, M.D.
Radiology
Medicare: Not Enrolled in Medicare
Practice Location: 2125 Oak Grove Rd, Suite 200, Walnut Creek, CA 94598
Phone: 925-296-7150    Fax: 925-296-7171
Dr. Aseem Om Rawal, M.D.
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 2125 Oak Grove Rd, Suite 200, Walnut Creek, CA 94598
Phone: 925-296-7150    Fax: 925-296-7171
Dr. Kuang-hwa Kenneth Chao, M.D.
Radiology
Medicare: Accepting Medicare Assignments
Practice Location: 575 Lennon Ln, Walnut Creek, CA 94598
Phone: 925-954-6710    Fax: 925-954-6711
Barbara M. Preston, MD
Radiology
Medicare: Not Enrolled in Medicare
Practice Location: 1425 S Main St, Walnut Creek, CA 94596
Phone: 925-295-4000    

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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