Question 1

What is Dr. John B Marshall, MD's email address?

Accepted Answer

Dr. John B Marshall, MD's email address is available to verified Dmand AI users. Their primary practice is located at Baptist Medical Center Jacksonville in Jacksonville, Florida. Sign up for a free trial to reveal their direct contact information.

Question 2

What is Dr. John B Marshall, MD's phone number?

Accepted Answer

Dr. John B Marshall, 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 B Marshall, MD practice?

Accepted Answer

Dr. John B Marshall, MD is a Emergency Medicine Physician physician currently practicing at Baptist Medical Center Jacksonville in Jacksonville, Florida. They hold admitting privileges at 2 hospital(s), including BAPTIST HEALTH MEDICAL CENTER - JACKSONVILLE. To see all the affiliations of Dr. John B Marshall, MD, start a free trial.

Question 4

What is Dr. John B Marshall, MD's specialty?

Accepted Answer

Dr. John B Marshall, MD is a board-certified Emergency Medicine Physician physician. They practice at Baptist Medical Center Jacksonville in Jacksonville, Florida.

Question 5

What procedures does Dr. John B Marshall, MD perform?

Accepted Answer

Dr. John B Marshall, MD performs procedures across 238 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 B Marshall, MD's NPI number?

Accepted Answer

Dr. John B Marshall, MD's National Provider Identifier (NPI) is 1437135563. This is a public identifier issued by CMS and can be verified at the NPPES NPI Registry. Their primary taxonomy code is 207P00000X, corresponding to Emergency Medicine Physician.

Question 7

What EHR does Dr. John B Marshall, MD use?

Accepted Answer

The EHR and practice technology used by Dr. John B Marshall, MD at Baptist Medical Center Jacksonville 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 B Marshall, MD accept?

Accepted Answer

Dr. John B Marshall, MD accepts 20 insurance plans. A full list of accepted payers is available in the profile above.

Question 9

What hospital is Dr. John B Marshall, MD affiliated with?

Accepted Answer

Dr. John B Marshall, MD holds hospital privileges at 2 institution(s). Their primary affiliation is BAPTIST HEALTH MEDICAL CENTER - JACKSONVILLE in Jacksonville, Florida.

Question 10

What are Dr. John B Marshall, MD's board certifications?

Accepted Answer

Dr. John B Marshall, MD is board certified by American Board of Emergency Medicine in Emergency Medicine. They have maintained this certification since .

Question 11

Where did Dr. John B Marshall, MD go to medical school?

Accepted Answer

Dr. John B Marshall, MD received their medical degree from Texas Tech University Health Sciences Center School of Medicine in 2002. They completed their Emergency Medicine residency at Johns Hopkins University.

Question 12

How many patients does Dr. John B Marshall, MD see per year?

Accepted Answer

Based on CMS Medicare Part B claims data, Dr. John B Marshall, MD served approximately 233 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 B Marshall, MD belong to?

Accepted Answer

Dr. John B Marshall, MD is affiliated with EMERGENCY PHYSICIANS INC, a large (20+ physician) practice with 64 physicians based in Jacksonville, Florida. The practice is independently owned.

Question 14

Does Dr. John B Marshall, MD conduct clinical research or trials?

Accepted Answer

Dr. John B Marshall, 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	99285Emergency department visit, problem with significant threat to life or function	73	73
2	99213Established patient office or other outpatient visit, typically 15 minutes	48	52
3	99214Established patient office or other outpatient visit, 30-39 minutes	37	37
4	99203New patient outpatient visit, total time 30-44 minutes	18	18
5	99284Emergency department visit with moderate level of medical decision making	16	16

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Dr. John B Marshall, MD

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