Provider Profile
Mary P. O'Day
Unclaimed ProfileAbout Mary O'day
Mary P. O'Day practices maternal & fetal medicine in Duluth, MN. Mary is a 1990 graduate of University of Miami, Lm Miller School of Medicine.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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
- (218) 786-3800
- Email not available
Practice Locations
400 E 3RD ST
Duluth, MN 55805
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
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 — 16 related providers in 2 groups
Trained at University of Miami, Lm Miller School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at University of Miami, Lm Miller School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Mary P. O'Day specialize in?
Mary P. O'Day is a maternal & fetal medicine in Duluth, MN. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Mary P. O'Day located?
Mary P. O'Day is listed at 400 E 3Rd St, Duluth, MN 55805. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mary P. O'Day's phone number?
The number on file is (218) 786-3800. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Mary P. O'Day's NPI number?
Mary P. O'Day's National Provider Identifier is 1528174984. 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 Mary P. O'Day train?
Mary P. O'Day attended University of Miami, Lm Miller School of Medicine, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has Mary P. O'Day been practicing?
Mary P. O'Day has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
Has Mary P. O'Day confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mary P. O'Day. 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.