Dr. Gerard E. Mullin, MD

Dr. Mullin practices at Johns Hopkins Surgery Centers - White Marsh in Nottingham, Maryland.

Dr. Mullin's NPI, 1891746996, was assigned on May 13, 2006. Dr. Mullin holds Maryland license D37257.

Dr. Mullin's primary practice is Johns Hopkins Surgery Centers - White Marsh, at 4924 Campbell Blvd Suite 250, Nottingham, MD 21236. The practice phone is (410) 321-1124.

Dr. Mullin's primary practice is Johns Hopkins Surgery Centers - White Marsh in Nottingham, Maryland. Dr. Mullin is also affiliated with The Johns Hopkins Hospital. The medical group on file is Johns Hopkins University. Dmand AI also links Dr. Mullin to 1 more hospital, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mullin practices, 3 sites in all. Vendor and product names are available with a free account.

Gastroenterology is Dr. Mullin's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Mullin is licensed in Maryland.

CMS data shows 405 Medicare services from Dr. Mullin across 12 procedure codes in 2024, for 369 Medicare patients. Medicare paid $53,281 for them.

CMS counts 369 Medicare patients who saw Dr. Mullin in 2024. The largest group is 65 to 74, with 194 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 18% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Mullin's median patient age at 56, with 65% women.

In 2024, Dr. Mullin wrote 278 Medicare Part D claims for 111 patients. 71% of them were for generic drugs. CMS names the drug for 174 of them, across 7 drugs with 11 or more claims each, at $7,207 in total drug cost. In 2023, CMS named 186 claims across 8 drugs.

CMS lists Dr. Mullin as offering telehealth. CMS counts 93 procedures of colonoscopy by Dr. Mullin, more than 78% of the clinicians it reports for that procedure.

Dmand AI links 65 papers to Dr. Mullin, published from 2011 to 2025. 2014 was the busiest year, with 6. The most frequent topics are Dietary Supplements, Obesity and Vitamin D. Dr. Mullin has published most often in Nutr Clin Pract. Dr. Mullin's most frequent co-authors are John O'Brien Clarke, MD, David Richard Kafonek, MD and Samara Rifkin, MD.

CMS Open Payments shows 6 general payments to Dr. Mullin from 5 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Olympus America Inc. paid the most, $126.