Doctor profile · Federal record
Dr. Connor O'Brien, M.D.
Critical Care Medicine (Internal Medicine) Physician (CMS: Cardiovascular Disease (Cardiology)) · Internal Medicine Physician · Cardiovascular Disease Physician · San Francisco, CA
- NPI 1063788727
- Accepts Medicare
- 14 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
535 Mission Bay Blvd S
San Francisco, CA 941432156
(415) 353-2873
fax (415) 353-2528
Credentials & registration
- NPI registered
- March 2012 — 14 yrs on file
- Profile last updated
- September 16, 2021
- Year of graduation
- 2012 — 14 yrs since
- Specialty taxonomy
- 207RC0200X — NUCC code
- State license (1)
- California #A126717
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1063788727. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
706
Distinct HCPCS
6
Medicare allowed
$143,673
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99291 |
Critical care, first 30-74 minutes | 531 | 146 | $233 | |
99292 |
Critical care, each additional 30 minutes | 70 | 42 | $118 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 45 | 33 | $134 | |
36620 |
Insertion of artery tube for blood sampling or infusion through skin | 25 | 23 | $48 | |
36556 |
Insertion of non-tunneled central venous tube for infusion (5 years or older) | 24 | 22 | $91 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 | $196 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 85. This provider delivers 8.3× the peer median.Open Payments
Industry payments received
All-time total
$336
Transactions
5
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ABIOMED | 2 | $184.19 | |
| Abbott Laboratories | 1 | $108.59 | |
| Getinge USA Sales, LLC | 1 | $28.09 | |
| Medtronic, Inc. | 1 | $15.48 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. Connor O'Brien's medical specialty?
Dr. Connor O'Brien practices Critical Care Medicine (Internal Medicine) Physician in San Francisco, CA.
Where does Dr. Connor O'Brien practice?
Dr. Connor O'Brien practices at 535 Mission Bay Blvd S, San Francisco, CA 941432156. Office phone: 4153532873.
What is Dr. Connor O'Brien's NPI?
Dr. Connor O'Brien's National Provider Identifier (NPI) is 1063788727, issued by NPPES.
Does Dr. Connor O'Brien accept Medicare assignment?
Yes. Dr. Connor O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Connor O'Brien commonly perform?
Top Medicare-reported procedures in 2023: Critical care (HCPCS 99291); Critical care (HCPCS 99292); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.