Question 1

What is Dr. John M. O'Brien, MD's email address?

Accepted Answer

Dr. John M. O'Brien, MD's email address is available to verified Dmand AI users. Their primary practice is located at in Chicago, Illinois. Sign up for a free trial to reveal their direct contact information.

Question 2

What is Dr. John M. O'Brien, MD's phone number?

Accepted Answer

Dr. John M. O'Brien, MD's direct phone number is available to Dmand AI subscribers. To access their direct number, start a free trial.

Question 3

Where does Dr. John M. O'Brien, MD practice?

Accepted Answer

Dr. John M. O'Brien, MD is a Internal Medicine Physician physician currently practicing at in Chicago, Illinois. They hold admitting privileges at 0 hospital(s), including . To see all the affiliations of Dr. John M. O'Brien, MD, start a free trial.

Question 4

What is Dr. John M. O'Brien, MD's specialty?

Accepted Answer

Dr. John M. O'Brien, MD is a board-certified Internal Medicine Physician physician. They practice at in Chicago, Illinois.

Question 5

What procedures does Dr. John M. O'Brien, MD perform?

Accepted Answer

Dr. John M. O'Brien, MD performs procedures across 96 clinical categories. Their most commonly billed procedures based on Medicare claims data include , , and . Full procedure and CPT code data is available to Dmand AI subscribers, start a free trial.

Question 6

What is Dr. John M. O'Brien, MD's NPI number?

Accepted Answer

Dr. John M. O'Brien, MD's National Provider Identifier (NPI) is 1376572891. This is a public identifier issued by CMS and can be verified at the NPPES NPI Registry. Their primary taxonomy code is 207R00000X, corresponding to Internal Medicine Physician.

Question 7

What EHR does Dr. John M. O'Brien, MD use?

Accepted Answer

The EHR and practice technology used by Dr. John M. O'Brien, MD at is available to Dmand AI subscribers. Sign up for a free trial to unlock the full technology stack.

Question 8

What insurance does Dr. John M. O'Brien, MD accept?

Accepted Answer

Dr. John M. O'Brien, MD accepts 0 insurance plans. A full list of accepted payers is available in the profile above.

Question 9

What hospital is Dr. John M. O'Brien, MD affiliated with?

Accepted Answer

Dr. John M. O'Brien, MD holds hospital privileges at 0 institution(s). Their primary affiliation is in , .

Question 10

What are Dr. John M. O'Brien, MD's board certifications?

Accepted Answer

Dr. John M. O'Brien, MD's board certification details are available to Dmand AI subscribers.

Question 11

Where did Dr. John M. O'Brien, MD go to medical school?

Accepted Answer

Dr. John M. O'Brien, MD's education history is available to Dmand AI subscribers.

Question 12

How many patients does Dr. John M. O'Brien, MD see per year?

Accepted Answer

Based on CMS Medicare Part B claims data, Dr. John M. O'Brien, MD served approximately 54 Medicare beneficiaries in 2023. Total patient volume including non-Medicare patients is available to Dmand AI subscribers.

Question 13

What group practice does Dr. John M. O'Brien, MD belong to?

Accepted Answer

Dr. John M. O'Brien, MD's group practice affiliation details are available to Dmand AI subscribers.

Question 14

Does Dr. John M. O'Brien, MD conduct clinical research or trials?

Accepted Answer

Dr. John M. O'Brien, MD has 0 indexed publications on record and no active clinical trial listings were found at time of last verification. Their research activity is available to Dmand AI subscribers. Sign up for a free trial to unlock their full research activity.

#	Procedure Code (CPT®/HCPCS II)	Procedure Patients	Procedure Volume
1	99214Established patient office or other outpatient visit, 30-39 minutes	39	80
2	99213Established patient office or other outpatient visit, typically 15 minutes	15	16

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