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Edit this profileAt a glance
- 4647 Zion Ave, San Diego, CA 92120
About Dr. O'brien
Based in San Diego, CA, Christopher M. O'Brien, MD is listed in the NPI registry under infectious disease. Christopher graduated from Clvlnd Clinic Lerner College of Med of Case Wstn RSV University in 1998. NPI 1730250788 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
- (619) 528-5000
- Email not available
Practice Locations
4647 ZION AVE
San Diego, CA 92120
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 infectious disease specialists at this location 2
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.
Other infectious disease specialists in San Diego 6
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is Dr. O'Brien?
Dr. O'Brien is an infectious disease specialist in San Diego, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Infectious Disease”.
NPI registry
What is Dr. O'Brien's address?
Dr. O'Brien is listed at 4647 Zion Ave, San Diego, CA 92120. 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. O'Brien?
The number on file is (619) 528-5000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. O'Brien's NPI number?
Dr. O'Brien's National Provider Identifier is 1730250788. 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. O'Brien train?
Dr. O'Brien attended Clvlnd Clinic Lerner College of Med of Case Wstn RSV University, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. O'Brien been practicing?
Dr. O'Brien has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
Has Dr. O'Brien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. O'Brien. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.