Jonathan I Diamant, MD - Medicare Ophthalmology in Vacaville, CA

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Jonathan I Diamant, MD is a medicare enrolled "Ophthalmology" physician in Vacaville, California. He went to Columbia University College Of Physicians And Surgeons and graduated in 1993 and has 32 years of diverse experience with area of expertise as Ophthalmology. He is a member of the group practice Permanente Medical Group Inc and his current practice location is 1 Quality Dr, Vacaville, California. You can reach out to his office (for appointments etc.) via phone at (707) 453-5000.

Jonathan I Diamant is licensed to practice in California (license number G83886) 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 1649358474.

Contact Information

Jonathan I Diamant, MD
1 Quality Dr,
Vacaville, CA 95688-9494
(707) 453-5000
Not Available

Map and Direction




Physician's Profile

Full NameJonathan I Diamant
GenderMale
SpecialityOphthalmology
Experience32 Years
Location1 Quality Dr, Vacaville, 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:
  • Jonathan I Diamant attended and graduated from Columbia University College Of Physicians And Surgeons in 1993
  NPI Data:
  • NPI Number: 1649358474
  • Provider Enumeration Date: 11/01/2006
  • Last Update Date: 12/13/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 1658566096
  • Enrollment ID: I20101111000786

Medical Identifiers

Medical identifiers for Jonathan I Diamant such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1649358474NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology G83886 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Permanente Medical Group Inc89219102258376

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. Jonathan I Diamant allows following entities to bill medicare on his behalf.
Entity NamePermanente Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073606299
PECOS PAC ID: 8921910225
Enrollment ID: O20031104000710

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. Jonathan I Diamant 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
Jonathan I Diamant, MD
1800 Harrison St Fl 7,
Oakland, CA 94612-3466

Ph: (510) 625-6262		Jonathan I Diamant, MD
1 Quality Dr,
Vacaville, CA 95688-9494

Ph: (707) 453-5000

Reviews and Comments


Ophthalmology Doctors in Vacaville, CA

Dr. Charles Qing Huang, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3700 Vaca Valley Pkwy, Kaiser Permanente Ophthalmology Department, Vacaville, CA 95688
Phone: 707-453-5600    
John K. Doyle, MD
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 1 Quality Dr, Vacaville, CA 95688
Phone: 707-453-5000    
Ellen R. Kolarik, MD
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 1 Quality Dr, Vacaville, CA 95688
Phone: 707-453-5000    

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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