Physician Profile
Seija Maniskas, MD, MS
Unclaimed ProfileAbout Dr. Maniskas
Based in Upland, CA, Seija Maniskas, MD, MS is listed in the NPI registry under colorectal surgery (proctology). Seija is also listed as specializing in colon & rectal surgery. NPI 1861015729 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
- (909) 949-2242
- Email not available
Practice Locations
1100 SAN BERNARDINO RD STE 1100
Upland, CA 91786
320 W 6th St
Corona, CA 92882
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 colorectal surgery specialists at this location 1
Same specialty, same street address — most likely the same department or group.
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.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 2020 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Maniskas specialize in?
Dr. Maniskas is a colorectal surgery (proctology) in Upland, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Dr. Maniskas located?
Dr. Maniskas is listed at 1100 San Bernardino Rd Ste 1100, Upland, CA 91786. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Maniskas's phone number?
The number on file is (909) 949-2242. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Maniskas?
Dr. Maniskas's National Provider Identifier is 1861015729. 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. Maniskas go to medical school?
Dr. Maniskas attended Other, graduating in 2020. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Maniskas have?
Dr. Maniskas has 6 years experience. Calculated from a graduation year of 2020, reported in the CMS National Downloadable File.
CMS public data
Is Dr. Maniskas's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Maniskas. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.