Dr. Denise Ann-Marie John, MD

Dr. John practices at University Hospital in Ann Arbor, Michigan.

Dr. John's NPI, 1033232319, was assigned on April 9, 2007. Dr. John holds Michigan license 4301089592.

Dr. John's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.

Dr. John's primary practice is University Hospital in Ann Arbor, Michigan. Dr. John is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dmand AI also links Dr. John to 1 more group practice or clinic, named with a free account. Dr. John's employer is on file too: a school & student health.

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

Ophthalmology is Dr. John's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. John is licensed in Michigan.

CMS data shows 744 Medicare services from Dr. John across 8 procedure codes in 2024, for 215 Medicare patients. Medicare paid $25,097 for them. Every service was in an office.

CMS counts 215 Medicare patients who saw Dr. John in 2024. The largest group is 75 to 84, with 87 patients. 70% of them have high blood pressure, and 68% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. John's median patient age at 72, with 54% women.

In 2024, Dr. John wrote 898 Medicare Part D claims for 249 patients. 76% of them were for generic drugs. CMS names the drug for 837 of them, across 16 drugs with 11 or more claims each, at $77,104 in total drug cost. In 2023, CMS named 768 claims across 14 drugs.

Dr. John accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of cataract surgery by Dr. John, more than 40% of the clinicians it reports for that procedure.

Dmand AI links 13 papers to Dr. John, published from 2022 to 2025. 2023 was the busiest year, with 4. The most frequent topics are Glaucoma, Michigan and Telemedicine. Dr. John has published most often in Ophthalmology. Dr. John's most frequent co-authors are Angela Renee Elam, MD, Amanda Kiely Bicket, MD and Leroy Johnson, MD.

CMS Open Payments shows 2 general payments to Dr. John from 2 drug and device companies in 2017. Food and beverage make up the largest share, 57% of the total. Allergan Inc. paid the most, $117.