William Howard Holmes
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2025
- Practice address
- 1216 Second Street Southwest, Rochester, MN 55902
- Practice phone
- Call (507) 255-5123
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find William Holmes' 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.
William Howard Holmes is a social worker in Rochester, Minnesota
William Holmes practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic.
William Holmes' NPI, 1952190225, was assigned on May 3, 2025. William Holmes holds Minnesota license 31077.
- NPI
- 1952190225NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3476047895
- NPI enumeration date
- May 3, 2025
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (507) 255-5123
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 30
- Medical school graduation
- 2022
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
William Howard Holmes practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota
William Holmes' primary practice is Mayo Clinic Hospital, Saint Marys Campus, at 1216 Second Street Southwest, Rochester, MN 55902 in Olmsted County. The practice phone is (507) 255-5123.
- Mayo Clinic Hospital, Saint Marys Campus1216 Second Street Southwest, Rochester, MN 55902 · Olmsted CountyPhone(507) 255-5123
Source: Dmand AI Affiliation Data
William Howard Holmes is affiliated with 2 sites of care and 1 medical group
William Holmes' primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. The medical group on file is Mayo Clinic. Dmand AI also links William Holmes to 1 more hospice, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at William Howard Holmes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Holmes practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mayo Clinic Hospital, Saint Marys Campus | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Mayo Clinic and 6.2K+ hospitals, with verified contacts in the same login.
William Howard Holmes is one of 246 social workers in Minnesota
Social worker is William Holmes' primary specialty in the NPI Registry, under taxonomy code 104100000X. William Holmes is licensed in Minnesota.
Specialties and state licenses
- Social worker, MinnesotaPrimary
Social workers near William Holmes
Counts of social workers 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
William Howard Holmes' patients have a median age of 52
Across all payers, Dmand AI patient panel data puts William Holmes' median patient age at 52, with 100% women.
William Holmes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
How William Howard Holmes takes part in Medicare
William Holmes accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for William Howard Holmes'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 William Howard Holmes
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is William Howard Holmes' NPI number?
William Howard Holmes' NPI number is 1952190225. It was assigned on May 3, 2025, and it is active in the NPI Registry.
What does William Howard Holmes specialize in?
William Howard Holmes is a social worker in Rochester, Minnesota. The primary specialty in the NPI Registry is Social Worker (taxonomy code 104100000X).
Where does William Howard Holmes practice?
William Holmes practices at 1216 Second Street Southwest, Rochester, MN 55902. William Holmes' primary practice is Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota, part of Mayo Clinic. Dmand AI also links William Holmes to 1 hospice.
What is William Howard Holmes' office phone number?
The practice phone on file for William Holmes is (507) 255-5123.
What is William Howard Holmes' medical license number?
William Holmes holds Minnesota license 31077.
Which hospitals is William Howard Holmes affiliated with?
William Holmes practices at Mayo Clinic Hospital, Saint Marys Campus in Rochester, Minnesota.
What medical group is William Howard Holmes part of?
William Holmes is linked to Mayo Clinic.
Does William Howard Holmes accept Medicare?
Yes. CMS lists William Holmes as accepting Medicare assignment.
How long has William Howard Holmes been practicing?
William Holmes graduated from medical school in 2022, 4 years ago.
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