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Physician Profile

Jonathan I. Diamant, MD

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At a glance

About Dr. Diamant

Based in Vacaville, CA, Jonathan I. Diamant, MD is listed in the NPI registry under ophthalmology. Jonathan graduated from Columbia University College of Physicians and Surgeons in 1993. According to Medicare claims data, the services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. NPI 1649358474 identifies this record in the national registry.

Factual summary compiled by Guide.md from public records; not written by this provider.

Specialty

Ophthalmology (Primary)

Credentials & Licensing

CA · Physician and Surgeon GMedical Board of California
No. 83886CurrentExpires Apr 2027Since 1997
NPINational Provider Identifier
1649358474Issued 2006

Snapshot · verify with the board ↗

Medicare information

Accepts Medicare assignmentYes
Medicare opt-outNo
Can order and refer in MedicareYes

Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.

Common questions

What is Dr. Diamant's specialty?

Dr. Diamant is an eye doctor in Vacaville, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Ophthalmology”.

NPI registry

Where can I find Dr. Diamant?

Dr. Diamant is listed at 1 Quality Dr, Vacaville, CA 95688. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Dr. Diamant?

The number on file is (707) 453-5000. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Diamant's NPI number?

Dr. Diamant's National Provider Identifier is 1649358474. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

What is Dr. Diamant's medical education?

Dr. Diamant attended Columbia University College of Physicians and Surgeons, graduating in 1993. This comes from the CMS National Downloadable File.

CMS public data

How long has Dr. Diamant been practicing?

Dr. Diamant has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.

CMS public data

What is Dr. Diamant known for?

According to Medicare billing data, Dr. Diamant the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.

Medicare claims

Has Dr. Diamant confirmed this information?

Not yet. This profile is built from public federal data and has not been confirmed by Dr. Diamant. If this is you, claiming it is free.

Guide.md

Guide.md listings do not constitute medical advice or an endorsement.