Dr. Mathew Lonberg, MD

Dr. Lonberg practices at Montefiore Nyack Hospital in Nyack, New York, part of Montefiore Einstein.

Dr. Lonberg's NPI, 1235186065, was assigned on May 27, 2006. Dr. Lonberg graduated from UVA School of Medicine in 1981. Dr. Lonberg's New York license number on file is 155671.

Dr. Lonberg's primary practice is Montefiore Nyack Hospital, at 160 North Midland Avenue, Nyack, NY 10960 in Rockland County. The practice phone is (845) 348-2000.

Dr. Lonberg's primary practice is Montefiore Nyack Hospital in Nyack, New York, part of Montefiore Einstein. Dr. Lonberg is also affiliated with Good Samaritan Hospital. The medical group on file is Highland Medical Group. Dmand AI also links Dr. Lonberg to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lonberg practices, 5 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Lonberg's primary specialty in the NPI Registry, under taxonomy code 207RH0000X. The record also lists hematology. Dr. Lonberg is board certified in hematology by the American Board of Internal Medicine. Dr. Lonberg has a license on file in New York.

Dmand AI lists arterial blot clot /embolism, breast cancer, chronic anemia, chronic embolism thrombosis, chronic leukemia, colorectal cancer, deep vein thrombosis (DVT) and fluid and electrolyte imbalances among the conditions Dr. Lonberg treats.

CMS data shows 3,298 Medicare services from Dr. Lonberg across 7 procedure codes in 2024, for 827 Medicare patients. Medicare paid $199,790 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 827 Medicare patients who saw Dr. Lonberg in 2024. The largest group is 75 to 84, with 349 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 2.24, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Lonberg's median patient age at 77, with 56% women.

In 2024, Dr. Lonberg wrote 978 Medicare Part D claims for 205 patients. 47% of them were for generic drugs. CMS names the drug for 762 of them, across 27 drugs with 11 or more claims each, at $3,583,092 in total drug cost. In 2023, CMS named 867 claims across 25 drugs.

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

Dmand AI links 3 papers to Dr. Lonberg in 2011. Dr. Lonberg's most frequent co-authors are John C. Araujo, MD, PhD, Andrew John Armstrong, MD and Edward L. Braud, MD.

CMS Open Payments shows 1,054 general payments to Dr. Lonberg from 72 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 87% of the total. Novartis Pharmaceuticals Corporation paid the most, $1,776.

Dmand AI lists 2 awards for Dr. Lonberg, most recently Top Doctors: New York Metro Area in 2014.

Dr. Lonberg graduated from UVA School of Medicine in 1981. Dr. Lonberg is a member of ACP.

Dr. Lonberg is in network with 16 carriers, including Aetna, MVP Health Care and United Healthcare. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.