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Edit this profileAt a glance
- 320 Lennon Ln, Walnut Creek, CA 94598
About Dr. Merrigan
Based in Walnut Creek, CA, Timmothy O. Merrigan, M.D. is listed in the NPI registry under family medicine. Timmothy graduated from Medical College of Wisconsin in 1995. NPI 1063442945 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (924) 906-2326
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
320 LENNON LN
Walnut Creek, CA 94598
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other family doctors at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 24 related providers in 3 groups
Other family doctors in Walnut Creek 8
Same specialty, same city.
Trained at Medical College of Wisconsin 8
Other providers in the same specialty who trained at the same institution.
Class of 1995 at Medical College of Wisconsin 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Timmothy O. Merrigan?
Timmothy O. Merrigan is a family doctor in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Family Medicine”.
NPI registry
What is Timmothy O. Merrigan's address?
Timmothy O. Merrigan is listed at 320 Lennon Ln, Walnut Creek, CA 94598. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Timmothy O. Merrigan?
The number on file is (924) 906-2326. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Timmothy O. Merrigan?
Timmothy O. Merrigan's National Provider Identifier is 1063442945. 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 Timmothy O. Merrigan train?
Timmothy O. Merrigan attended Medical College of Wisconsin, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Timmothy O. Merrigan have?
Timmothy O. Merrigan has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
Is Timmothy O. Merrigan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Timmothy O. Merrigan. If this is you, claiming it is free.
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