Dr. Jack V. Greiner, DO

Dr. Greiner practices at Jack V Greiner DBA Charles River Eye Associates in Boston, Massachusetts.

Dr. Greiner's NPI, 1588601280, was assigned on June 1, 2006. Dr. Greiner graduated from Midwestern University, Chicago College of Osteopathic Med in 1982. Dr. Greiner holds Massachusetts license 56366.

Dr. Greiner's primary practice is Jack V Greiner DBA Charles River Eye Associates, at 5 Whittier Pl, Boston, MA 02114 in Suffolk County. The practice phone is (617) 248-3875.

Dr. Greiner's primary practice is Jack V Greiner DBA Charles River Eye Associates in Boston, Massachusetts. Dmand AI also links Dr. Greiner to 1 physician office, 1 group practice or clinic and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greiner practices, 2 sites in all. Vendor and product names are available with a free account.

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

CMS data shows 2,402 Medicare services from Dr. Greiner across 15 procedure codes in 2024, for 567 Medicare patients. Medicare paid $151,347 for them. Every service was in an office.

CMS counts 567 Medicare patients who saw Dr. Greiner in 2024. The largest group is 75 to 84, with 242 patients. 75% of them have high cholesterol, and 69% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Greiner's median patient age at 71, with 58% women.

In 2024, Dr. Greiner wrote 969 Medicare Part D claims for 253 patients. 67% of them were for generic drugs. CMS names the drug for 872 of them, across 13 drugs with 11 or more claims each, at $106,179 in total drug cost. In 2023, CMS named 926 claims across 15 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 74 out of 100 for Dr. Greiner for performance year 2024, reported as part of a group. Dr. Greiner accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)

Dmand AI links Dr. Greiner to 1 clinical trial. Conditions studied include Glaucoma and Ocular Hypertension. Open Payments lists research payments to Dr. Greiner that name 1 trial.

CMS Open Payments shows 131 general payments to Dr. Greiner from 19 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 39% of the total. Shire North American Group Inc paid the most, $6,047. It also lists 13 research payments totaling $61,443 from 2018 to 2019, naming 1 clinical trial.

Dr. Greiner graduated from Midwestern University, Chicago College of Osteopathic Med in 1982.