Johnson O Adeyanju, MD - Medicare Internal Medicine in Concord, CA

Johnson O Adeyanju, MD is a medicare enrolled "Internal Medicine" physician in Concord, California. He went to Louisiana State University School Of Medicine In New Orleans and graduated in 1989 and has 35 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice John Muir Physician Network and his current practice location is 2700 Grant St, Suite 200, Concord, California. You can reach out to his office (for appointments etc.) via phone at (925) 677-0500.

Johnson O Adeyanju is licensed to practice in California (license number A49920) 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 1467403147.

Contact Information

Johnson O Adeyanju, MD
2700 Grant St, Suite 200,
Concord, CA 94520-2266
(925) 677-0500
(925) 677-0519

Map and Direction




Physician's Profile

Full NameJohnson O Adeyanju
GenderMale
SpecialityInternal Medicine
Experience35 Years
Location2700 Grant St, Concord, 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:
  • Johnson O Adeyanju attended and graduated from Louisiana State University School Of Medicine In New Orleans in 1989
  NPI Data:
  • NPI Number: 1467403147
  • Provider Enumeration Date: 05/15/2006
  • Last Update Date: 06/17/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 9234292939
  • Enrollment ID: I20090107000028

Medical Identifiers

Medical identifiers for Johnson O Adeyanju such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1467403147NPI-NPPES
00A499200MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A49920 (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 Physician Network6608789813442

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. Johnson O Adeyanju allows following entities to bill medicare on his behalf.
Entity NameJohn Muir Physician Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841407665
PECOS PAC ID: 6608789813
Enrollment ID: O20031226000143
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

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. Johnson O Adeyanju 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
Johnson O Adeyanju, MD
Dept 34929, P.o. Box 39000,
San Francisco, CA 94139-0001

Ph: (925) 952-2828
Johnson O Adeyanju, MD
2700 Grant St, Suite 200,
Concord, CA 94520-2266

Ph: (925) 677-0500

Reviews and Comments


Internal Medicine Doctors in Concord, CA

Lori Kay Danze, M.D.
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Phone: 925-677-0500    Fax: 925-677-0519
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Dr. Smitha Reddy Anam, M.D
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Dr. Abraham K Chung, M.D.
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Phone: 925-674-2609    Fax: 925-674-2211
Hari Krishan Samplay, M.D.
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Practice Location: 2182 East St, Concord, CA 94520
Phone: 925-597-0202    

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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