Individual provider · Type 1 NPI
William J. Riesen, MD
Internal Medicine Physician · Mason City, IA
Practice location
1010 4th St SW Ste 305
Mason City, IA 50401-2801
Fax (641) 428-2515
Mailing address
621 S Illinois Ave, Suite 103
Mason City, IA 50401-5489
Specialties and licenses
| Taxonomy | Code | License |
|---|---|---|
| Internal Medicine Physician Primary | 207R00000X | 31260 (IA) |
Internal Medicine Physician: A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medi…
15 other providers at this address
- Brian Yarahmadi, MDStudent in an Organized Health Care Education/Training Program Mason City, IA NPI 1801732763
- Celine Durgin, MDStudent in an Organized Health Care Education/Training Program Mason City, IA NPI 1396488953
- Gabriel Unkrich, DOStudent in an Organized Health Care Education/Training Program Mason City, IA NPI 1033055983
- Gaurav Karn, MDStudent in an Organized Health Care Education/Training Program Mason City, IA NPI 1154267086
- Grace Mutinda, MDStudent in an Organized Health Care Education/Training Program Mason City, IA NPI 1346044088
- Gregory M. Sibenaller, DOStudent in an Organized Health Care Education/Training Program Mason City, IA NPI 1184367724
- Kieran Allowitz, DOStudent in an Organized Health Care Education/Training Program Mason City, IA NPI 1871438879
- Lasya Pesaru, MDStudent in an Organized Health Care Education/Training Program Mason City, IA NPI 1376347013
- Linda G. Floden, MDFamily Medicine Physician Mason City, IA NPI 1467563452
- Luke John Carlson, MDInternal Medicine Physician Mason City, IA NPI 1457092165
- Manasa Durga Vazrala, MDStudent in an Organized Health Care Education/Training Program Mason City, IA NPI 1497691356
- Matthew Robert Hardee, DOInternal Medicine Physician Mason City, IA NPI 1548408867
Other internal medicine physician providers in Mason City
- Burt Humburg, MDInternal Medicine Physician Mason City, IA NPI 1013134469
- Mark C. Johnson, MDInternal Medicine Physician Mason City, IA NPI 1013923127
- Fnu Dayawa Da Agoons, MDInternal Medicine Physician Mason City, IA NPI 1083174429
- Adam Hoffmann, DOInternal Medicine Physician Mason City, IA NPI 1093339871
- Evelyn Enit IngaInternal Medicine Physician Mason City, IA NPI 1114509098
- Hersi Cabdi MoallinInternal Medicine Physician Mason City, IA NPI 1154818953
- Yuvaraj Thangaraj, MDInternal Medicine Physician Mason City, IA NPI 1215943063
- Muhammad Talha Tahir, MDInternal Medicine Physician Mason City, IA NPI 1316512197
About NPI 1548377997
William J. Riesen, MD's National Provider Identifier is 1548377997, issued on Aug 23, 2006. The primary taxonomy on file is Internal Medicine Physician (207R00000X), and the practice location is in Mason City, IA. The record was last updated on Jul 14, 2025.