Physician Profile
Unclaimed ProfileAbout OBRIEN
Based in San Diego, CA, Edward Orestes Obrien, MD is listed in the NPI registry under anesthesiology. Edward graduated from Harvard Medical School in 1997. Edward is also listed as specializing in anesthesiology — critical care. According to Medicare claims data, Edward cared for 207 Medicare patients across 290 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (800) 926-8273
- Email not available
Practice Locations
200 W ARBOR DR
San Diego, CA 92103
Procedures Most Often Billed to Medicare
290 services · 207 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of artery tube for blood sampling or infusion through skin | Procedure | 36620 |
27 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
160 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
27 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
26 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
20 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
15 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
15 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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 anesthesiology 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 anesthesiology specialists in San Diego 6
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Harvard Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1997 at Harvard Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of artery tube for blood sampling or infusion through skin 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Obrien?
Dr. Obrien is an anesthesiology in San Diego, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ANESTHESIOLOGY”.
NPI registry
What is Dr. Obrien's address?
Dr. Obrien is listed at 200 W ARBOR DR, San Diego, CA 92103. 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 (800) 926-8273. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Obrien's NPI number?
Dr. Obrien's National Provider Identifier is 1891716254. 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 Harvard Medical School, graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Obrien been practicing?
Dr. Obrien has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Obrien perform?
According to Medicare billing data, Dr. Obrien performs procedures including insertion of artery tube for blood sampling or infusion through skin, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
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.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.