Physician Profile
Marianne Ryan, MD
Unclaimed ProfileAbout Dr. Ryan
Marianne Ryan, MD is a healthcare provider in Harbor City, CA specializing in surgery. Marianne trained at University of Washington School of Medicine, graduating in 1989.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (310) 325-5111
- Email not available
Practice Locations
25825 VERMONT AVE
Harbor City, CA 90710
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 general surgeons at this location 1
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 — 21 related providers in 3 groups
Other general surgeons in Harbor City 6
Same specialty, same city.
Trained at University of Washington School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1989 at University of Washington School of Medicine 7
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Ryan specialize in?
Dr. Ryan is a general surgeon in Harbor City, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Surgery”.
NPI registry
Where is Dr. Ryan located?
Dr. Ryan is listed at 25825 Vermont Ave, Harbor City, CA 90710. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Ryan's phone number?
The number on file is (310) 325-5111. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Ryan?
Dr. Ryan's National Provider Identifier is 1336216183. 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. Ryan go to medical school?
Dr. Ryan attended University of Washington School of Medicine, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Ryan have?
Dr. Ryan has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
Is Dr. Ryan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ryan. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.