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Physician Profile

Marissa M. Wen, MD

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Where to find Marissa M. Wen, MD

About Dr. Wen

Marissa M. Wen, MD practices internal medicine in Lathrop, CA. The provider's National Provider Identifier (NPI) is 1467999169.

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

Education & Training

Medical School Other Graduated: 2003

Specialty

Internal Medicine (Primary)

Credentials & Licensing

CA · Physician and Surgeon AMedical Board of California
No. 161459CurrentExpires Mar 2027Since 2019
NPINational Provider Identifier
1467999169Issued 2017

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. Wen specialize in?

Dr. Wen is an internist in Lathrop, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.

NPI registry

Where is Dr. Wen located?

Dr. Wen is listed at 1507 Garden Farms Ave, Lathrop, CA 95330. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

What is Dr. Wen's phone number?

The number on file is (209) 479-8000. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Dr. Wen?

Dr. Wen's National Provider Identifier is 1467999169. 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. Wen go to medical school?

Dr. Wen attended Other, graduating in 2003. This comes from the CMS National Downloadable File.

CMS public data

How much experience does Dr. Wen have?

Dr. Wen has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.

CMS public data

Is Dr. Wen's profile verified?

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

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