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Physician Profile

Jay P. Klarnet, MD

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Where to find Jay P. Klarnet, MD

About Dr. Klarnet

Jay P. Klarnet, MD practices medical oncology in Oxnard, CA. Jay is a 1980 graduate of State University of New York at Buffalo School of Medicine. Jay is also listed as specializing in hematology & oncology. According to Medicare claims data, Jay cared for 752 Medicare patients across 1,148 services. The services billed most often include established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1538258314.

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

Specialty

Medical Oncology (Primary)

Credentials & Licensing

WA · Physician and Surgeon GMedical Board of California
No. 88453CurrentExpires Oct 2027Since 2025
AZ licenceAs reported to the NPI registry
No. Z185726As reported
WA licenceAs reported to the NPI registry
No. MD00021124As reported
NPINational Provider Identifier
1538258314Issued 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 does Dr. Klarnet specialize in?

Dr. Klarnet is an oncologist in Oxnard, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Medical Oncology”.

NPI registry

Where is Dr. Klarnet located?

Dr. Klarnet is listed at 1700 N Rose Ave Ste 470, Oxnard, CA 93030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Klarnet's phone number?

The number on file is (805) 988-7080. Contact the office directly to confirm availability and scheduling.

NPI registry

What is Dr. Klarnet's NPI number?

Dr. Klarnet's National Provider Identifier is 1538258314. 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

Where did Dr. Klarnet go to medical school?

Dr. Klarnet attended State University of New York at Buffalo School of Medicine, graduating in 1980. This comes from the CMS National Downloadable File.

CMS public data

How long has Dr. Klarnet been practicing?

Dr. Klarnet has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.

CMS public data

What does Dr. Klarnet do most often?

According to Medicare billing data, Dr. Klarnet 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. Klarnet confirmed this information?

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

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