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Dr. Gregory William Hosier, MD, MSc
NPI1902570716
- Publications
- 2
- Industry payments
- $1,464
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 400 Parnassus Ave, San Francisco, CA 94143-2202
- Practice phone
- Call (415) 353-2200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Hosier's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Gregory William Hosier is a urologist in San Francisco, California
Dr. Hosier practices in San Francisco, California.
Dr. Hosier's NPI, 1902570716, was assigned on August 4, 2021. Dr. Hosier graduated from Dalhousie University Faculty of Medicine in 2016. Dr. Hosier's California license number on file is A174287.
NPI and contact details
- NPI
- 1902570716NPI Registry (opens in a new tab)
- NPI enumeration date
- August 4, 2021
- NPI status
- Active
- Practice phone
- (415) 353-2200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); and Dmand AI Professional Profile Data
Dr. Gregory William Hosier's practice address is in San Francisco, California
Dr. Hosier's practice address in the NPI Registry is 400 Parnassus Ave, San Francisco, CA 94143-2202. The practice phone is (415) 353-2200.
- NPI Registry address400 Parnassus Ave, San Francisco, CA 94143-2202Phone(415) 353-2200
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. Gregory William Hosier's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Hosier practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Dr. Hosier's practice | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Gregory William Hosier is one of 1,395 urologists in California
Urology is Dr. Hosier's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Hosier has a license on file in California.
Specialties and state licenses
- Urology, CaliforniaPrimary
Urologists near Dr. Hosier
Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Gregory William Hosier has 2 publications on record
Dmand AI links 2 papers to Dr. Hosier in 2022. Dr. Hosier's most frequent co-authors are David Bijan Bayne, MD, David B. Bayne, MD and Fadl Hamouche, MD.
Papers2
Dr. Hosier's most frequent co-authors
Recent publications by Dr. Hosier
See who Dr. Hosier researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Hosier works with, so you can find a warm path to the right urologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Gregory William Hosier received $1,464 in industry payments from 2021 to 2025
CMS Open Payments shows 7 general payments to Dr. Hosier from 4 drug and device companies from 2021 to 2025. Travel and lodging make up the largest share, 71% of the total. Intuitive Surgical, Inc. paid the most, $1,037.
General payments to Dr. Hosier by program year, 2021 to 2025
General payments to Dr. Hosier by kind, 2021 to 2025
$1.5Kin total
- Travel and lodging$1,03771%
- Food and beverage$42729%
Companies that paid Dr. Hosier the most, 2021 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Gregory William Hosier graduated from Dalhousie University Faculty of Medicine
Dr. Hosier graduated from Dalhousie University Faculty of Medicine in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Gregory William Hosier's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Gregory William Hosier
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Gregory William Hosier's NPI number?
Dr. Gregory William Hosier's NPI number is 1902570716. It was assigned on August 4, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Gregory William Hosier?
Dr. Gregory William Hosier is a urologist in San Francisco, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Gregory William Hosier practice?
Dr. Hosier practices at 400 Parnassus Ave, San Francisco, CA 94143-2202.
What is Dr. Gregory William Hosier's office phone number?
The practice phone on file for Dr. Hosier is (415) 353-2200.
What is Dr. Gregory William Hosier's medical license number?
Dr. Hosier's California license number on file is A174287.
Where did Dr. Gregory William Hosier go to medical school?
Dr. Hosier graduated from Dalhousie University Faculty of Medicine in 2016.
Has Dr. Gregory William Hosier received payments from drug or device companies?
CMS Open Payments shows $1,464 in general payments to Dr. Hosier from 4 companies from 2021 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Gregory William Hosier been practicing?
Dr. Hosier graduated from medical school in 2016, 10 years ago.
Does Dr. Gregory William Hosier do research?
Dmand AI links 2 publications to Dr. Hosier.
Who does Dr. Gregory William Hosier publish with?
Dr. Hosier's most frequent co-authors are David Bijan Bayne, MD (1 shared paper), David B. Bayne, MD (1 shared paper) and Fadl Hamouche, MD (1 shared paper).
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