Dr. Gregory W. Walker, DO

Dr. Walker practices at Promedica Physicians Pediatric Endocrinology, a Department of Promedica Toledo Hospital - HOPD in Toledo, Ohio.

Dr. Walker's NPI, 1134307978, was assigned on February 4, 2008. Dr. Walker holds Ohio license 34.008756.

Dr. Walker's primary practice is Promedica Physicians Pediatric Endocrinology, a Department of Promedica Toledo Hospital - HOPD, at 2100 W Central Ave, Toledo, OH 43606.

Dr. Walker's primary practice is Promedica Physicians Pediatric Endocrinology, a Department of Promedica Toledo Hospital - HOPD in Toledo, Ohio. Dr. Walker is also affiliated with ProMedica Toledo Hospital. The medical group on file is ProMedica Physicians. Dmand AI also links Dr. Walker to 4 more hospitals and 1 group practice or clinic, each named with a free account. Dr. Walker's employer is on file too: a hospital.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 7 sites in all. Vendor and product names are available with a free account.

Vascular surgery is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 2086S0129X. Dr. Walker is licensed in Ohio.

CMS data shows 1,435 Medicare services from Dr. Walker across 20 procedure codes in 2024, for 1,162 Medicare patients. Medicare paid $71,627 for them.

CMS counts 1,162 Medicare patients who saw Dr. Walker in 2024. The largest group is 65 to 74, with 476 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 2.03, 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. Walker's median patient age at 73, with 46% women.

In 2024, Dr. Walker wrote 415 Medicare Part D claims for 103 patients. 83% of them were for generic drugs. CMS names the drug for 377 of them, across 6 drugs with 11 or more claims each, at $54,577 in total drug cost. In 2023, CMS named 373 claims across 7 drugs.

Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 16 procedures of spinal fusion by Dr. Walker, more than 33% of the clinicians it reports for that procedure.

Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 130 general payments to Dr. Walker from 26 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 61% of the total. Medtronic, Inc. paid the most, $4,968.