David J. Massop, MDMDUnclaimed · claim itOphthalmology — Retina SpecialistDes Moines, IA10 years experienceCalculated from a graduation year of 2016, reported in the CMS National Downloadable File.(515) 241-8595NPI 1003267956View Profile Claim
Samuel S. Tadros, MDMDUnclaimed · claim itOphthalmology — Retina SpecialistIowa City, IA4 years experienceCalculated from a graduation year of 2022, reported in the CMS National Downloadable File.(319) 356-2034NPI 1326786005View Profile Claim
Justin Grassmeyer, MDMDUnclaimed · claim itOphthalmology — Retina SpecialistIowa City, IA5 years experienceCalculated from a graduation year of 2021, reported in the CMS National Downloadable File.(319) 356-3705NPI 1780262675View Profile Claim
Beau J. Fenner, MDMDUnclaimed · claim itOphthalmology — Retina SpecialistIowa City, IA4+ years experienceRegistered with an NPI since 2022. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.(319) 356-3705NPI 1861124943View Profile Claim
Mohammad A. Sabbagh, MDMDUnclaimed · claim itOphthalmology — Retina SpecialistSioux City, IA7 years experienceCalculated from a graduation year of 2019, reported in the CMS National Downloadable File.(712) 226-3937NPI 1386201549View Profile Claim
Sushant Wagley, MDMDUnclaimed · claim itOphthalmology — Retina SpecialistWest Des Moines, IA10 years experienceCalculated from a graduation year of 2016, reported in the CMS National Downloadable File.(515) 222-6400NPI 1225481351View Profile Claim
Riley S. Bylund, MDMDUnclaimed · claim itOphthalmology — Retina SpecialistWest Des Moines, IA7 years experienceCalculated from a graduation year of 2019, reported in the CMS National Downloadable File.(515) 223-8685NPI 1336791045View Profile Claim
James R. Singer, DODOUnclaimed · claim itOphthalmology — Retina SpecialistWest Des Moines, IA16 years experienceCalculated from a graduation year of 2010, reported in the CMS National Downloadable File.(515) 222-6400NPI 1427369107View Profile Claim
Austin L. Strohbehn, MDMDUnclaimed · claim itOphthalmology — Retina SpecialistWest Des Moines, IA12 years experienceCalculated from a graduation year of 2014, reported in the CMS National Downloadable File.(515) 223-8685NPI 1629482468View Profile Claim
Christopher L. Haupert, MDMDUnclaimed · claim itOphthalmology — Retina SpecialistWest Des Moines, IA32 years experienceCalculated from a graduation year of 1994, reported in the CMS National Downloadable File.(515) 222-6400NPI 1780652800View Profile Claim
Cory A. Christensen, DO, MPHDO, MPHUnclaimed · claim itOphthalmology — Retina SpecialistWest Des Moines, IA4 years experienceCalculated from a graduation year of 2022, reported in the CMS National Downloadable File.(515) 223-8685NPI 1952044877View Profile Claim
