Are you Dr. Obrien? This profile is yours to edit: update your address, phone, photo and services.
Edit this profileAt a glance
- 521 Parnassus Ave, Box 0125, San Francisco, CA 94143
About Dr. Obrien
Isabel S. Obrien, MD, MPH is a healthcare provider in San Francisco, CA specializing in emergency medicine. Isabel trained at Tufts University School of Medicine, graduating in 2022. Isabel is also listed as specializing in student in an organized health care education program. This provider record is associated with NPI 1386387488.
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
- (415) 476-4838
- Email not available
Practice Locations
521 PARNASSUS AVE, BOX 0125
San Francisco, CA 94143
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 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 — 24 related providers in 3 groups
Other emergency physicians in San Francisco 8
Same specialty, same city.
Trained at Tufts University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2022 at Tufts University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. Obrien?
Dr. Obrien is an emergency physician in San Francisco, 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. Obrien's address?
Dr. Obrien is listed at 521 Parnassus Ave, Box 0125, San Francisco, CA 94143. 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. Obrien?
The number on file is (415) 476-4838. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Obrien's NPI number?
Dr. Obrien's National Provider Identifier is 1386387488. 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. Obrien train?
Dr. Obrien attended Tufts University School of Medicine, graduating in 2022. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Obrien been practicing?
Dr. Obrien has 4 years experience. Calculated from a graduation year of 2022, reported in the CMS National Downloadable File.
CMS public data
Has Dr. Obrien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Obrien. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.