Question 1

What is Mark Callahan, MD's email address?

Accepted Answer

Mark Callahan, MD's email address is available to verified Dmand AI users. Their primary practice is located at in New York, New York. Sign up for a free trial to reveal their direct contact information.

Question 2

What is Mark Callahan, MD's phone number?

Accepted Answer

Mark Callahan, MD's direct phone number is available to Dmand AI subscribers. To access their direct number, start a free trial.

Question 3

Where does Mark Callahan, MD practice?

Accepted Answer

Mark Callahan, MD is a Internal Medicine Physician physician currently practicing at in New York, New York. They hold admitting privileges at 0 hospital(s), including . To see all the affiliations of Mark Callahan, MD, start a free trial.

Question 4

What is Mark Callahan, MD's specialty?

Accepted Answer

Mark Callahan, MD is a board-certified Internal Medicine Physician physician. They practice at in New York, New York.

Question 5

What procedures does Mark Callahan, MD perform?

Accepted Answer

Mark Callahan, MD performs procedures across 0 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 Mark Callahan, MD's NPI number?

Accepted Answer

Mark Callahan, MD's National Provider Identifier (NPI) is 1194803890. 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 Mark Callahan, MD use?

Accepted Answer

The EHR and practice technology used by Mark Callahan, 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 Mark Callahan, MD accept?

Accepted Answer

Mark Callahan, MD accepts 0 insurance plans. A full list of accepted payers is available in the profile above.

Question 9

What hospital is Mark Callahan, MD affiliated with?

Accepted Answer

Mark Callahan, MD holds hospital privileges at 0 institution(s). Their primary affiliation is in , .

Question 10

What are Mark Callahan, MD's board certifications?

Accepted Answer

Mark Callahan, MD's board certification details are available to Dmand AI subscribers.

Question 11

Where did Mark Callahan, MD go to medical school?

Accepted Answer

Mark Callahan, MD's education history is available to Dmand AI subscribers.

Question 12

How many patients does Mark Callahan, MD see per year?

Accepted Answer

Based on CMS Medicare Part B claims data, Mark Callahan, MD served approximately 0 Medicare beneficiaries in 2023. Total patient volume including non-Medicare patients is available to Dmand AI subscribers.

Question 13

What group practice does Mark Callahan, MD belong to?

Accepted Answer

Mark Callahan, MD's group practice affiliation details are available to Dmand AI subscribers.

Question 14

Does Mark Callahan, MD conduct clinical research or trials?

Accepted Answer

Mark Callahan, MD has 2 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.

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Mark Callahan, MD

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