Physician Profile
Marianna L. Oppenheimer, MD, MSC
Unclaimed ProfileWhere to find Marianna L. Oppenheimer, MD, MSC
- Walnut Creek location main office
1425 S Main St, Walnut Creek, CA 94596 - Columbus location
395 W 12th Ave Rm 662, Columbus, OH 43210 - Springfield location
759 Chestnut St, Springfield, MA 01199
About Dr. Oppenheimer
Marianna L. Oppenheimer, MD, MSC practices emergency medicine in Walnut Creek, CA. Marianna is a 2018 graduate of University of Puerto Rico School of Medicine. Marianna is also listed as specializing in student in an organized health care education program. The provider's National Provider Identifier (NPI) is 1538657762.
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
- (925) 295-4000
- Email not available
Practice Locations
1425 S MAIN ST
Walnut Creek, CA 94596
395 W 12th Ave Rm 662
Columbus, OH 43210
759 Chestnut St
Springfield, MA 01199
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 emergency physicians at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 3
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 — 22 related providers in 3 groups
Other emergency physicians in Walnut Creek 6
Same specialty, same city.
Trained at University of Puerto Rico School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2018 at University of Puerto Rico School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Oppenheimer?
Dr. Oppenheimer is an emergency physician in Walnut Creek, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Emergency Medicine”.
NPI registry
What is Dr. Oppenheimer's address?
Dr. Oppenheimer is listed at 1425 S Main St, Walnut Creek, CA 94596. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Oppenheimer?
The number on file is (925) 295-4000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Oppenheimer's NPI number?
Dr. Oppenheimer's National Provider Identifier is 1538657762. 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. Oppenheimer train?
Dr. Oppenheimer attended University of Puerto Rico School of Medicine, graduating in 2018. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Oppenheimer been practicing?
Dr. Oppenheimer has 8 years experience. Calculated from a graduation year of 2018, reported in the CMS National Downloadable File.
CMS public data
Has Dr. Oppenheimer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Oppenheimer. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.