{"nrhp_refnum":"85001784","name":"Krotoszyner, Dr. Martin M., Medical Offices and House","other_names":[],"category":"building","location":{"address":"995--999 Sutter St.","address_restricted":false,"city":"San Francisco","county":"San Francisco","state":"CA","lat":37.78811490100003,"lon":-122.41642656199997,"geom_source":"nps_gis"},"listed_date":"1985-08-15","is_nhl":false,"nhl_designated_date":null,"areas_of_significance":["Health/Medicine","Architecture","Social History"],"significance_levels":["local"],"summary":{"what_it_is":"A three-story reinforced concrete building with attic and basement at 995-999 Sutter Street, at Sutter and Hyde Streets in San Francisco's Tenderloin district. It was built in 1911-12 as a combined doctor's office and residence, designed by Herman Barth.","why_significant":"The building is an excellent example of City Beautiful/Beaux Arts Classicism from the rebuilding after the 1906 earthquake and fire, with exceptional mottled brick and terra cotta detailing. It housed Dr. Martin Krotoszyner, a pioneering urologist who brought the cystoscope to San Francisco and trained many of the city's urologists. It is also a rare surviving example of a combined doctor's office and residence type in the Tenderloin.","narrative":"Built in 1911-12 at the corner of Sutter and Hyde Streets in San Francisco, this three-story building combined a physician's office with his family home. Architect Herman Barth designed it with a reinforced concrete structure, street facades of mottled gold-to-rust tapestry brick, and ornamental terra cotta balconies, door trim and curved pediments. Inside, the ground-floor offices keep wood-grain painted woodwork, tiled fireplaces and stained glass, and the stairwell windows show Prairie School influence. The building was home to Dr. Martin Krotoszyner, a urologist credited with bringing the cystoscope to San Francisco in 1894, who led urology departments at several hospitals and the San Francisco Polyclinic and trained many of the city's urologists. His family lived here until 1937-38, and later doctors used the building for medical practice. It was listed as an exceptional example of post-1906 Beaux Arts design and as a rare surviving office-residence building type.","period_of_significance":"1911-1912","architect_builder":"Herman Barth, AIA","architectural_style":"City Beautiful/Beaux Arts Classicism","criteria":["B","C"],"status_note":"Described as in excellent physical condition apart from deterioration and spalling of the exterior balcony balustrades; the exterior is unaltered except for a removed garage and wing wall, and upper floors were later converted to office use.","vacant_flag":null,"machine_generated":true,"model":"claude-sonnet-5-5","prompt_version":"v1.0-2026-10-29","generated_at":"2026-10-29 02:54:27.798651-05","source_pdf":"https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/rg-079/NPS_CA/85001784.pdf"},"photo":{"url_800":"https://nationalhistoricalregister.com/media/85001784/08c44aeb65-800.webp","url_1600":"https://nationalhistoricalregister.com/media/85001784/08c44aeb65-1600.webp","licence":"CC BY-SA 4.0","author":"Sanfranman59","credit_html":"<a href=\"https://commons.wikimedia.org/wiki/File:Krotoszyner_Medical_Office_%26_House_(San_Francisco).JPG\" rel=\"noopener\">Sanfranman59</a>, <a href=\"https://creativecommons.org/licenses/by-sa/4.0\" rel=\"license noopener\">CC BY-SA 4.0</a>, via Wikimedia Commons","source_page":"https://commons.wikimedia.org/wiki/File:Krotoszyner_Medical_Office_%26_House_(San_Francisco).JPG"},"district":{"nrhp_refnum":"91000957","name":"Lower Nob Hill Apartment Hotel District","url":"https://nationalhistoricalregister.com/districts/california/lower-nob-hill-apartment-hotel-district-91000957/"},"sources":{"nps_snapshot_date":"2026-05-22","nara_catalog":"https://catalog.archives.gov/id/123861188","wikipedia":null,"wikidata":"https://www.wikidata.org/wiki/Q133504594"},"indexable":true,"url":"https://nationalhistoricalregister.com/california/san-francisco/krotoszyner-dr-martin-m-medical-offices-and-house-85001784/"}