Mary Katherine Williams, CNM
- Part D claims, 2024
- 54
- MIPS score, 2024
- 95
- Hospital affiliations
- 1
- Industry payments
- $191
- Medical groups
- 3
- Practice address
- 525 Airport Rd, Oneida, WI 54155
- Practice phone
- Call (920) 869-2711
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Oneida Comprehensive Health (Airport Rd)
Tribal Health Clinic · Oneida, Wisconsin
Find Mary Williams' 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.
Mary Katherine Williams is an advanced practice midwife in Oneida, Wisconsin
Mary Williams practices at Oneida Comprehensive Health (Airport Rd) in Oneida, Wisconsin.
Mary Williams' NPI, 1578807673, was assigned on November 15, 2012. Mary Williams holds Wisconsin license 148871-32.
- NPI
- 1578807673NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5294989422
- NPI enumeration date
- November 15, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (920) 869-2711
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Katherine Williams practices at Oneida Comprehensive Health (Airport Rd) in Oneida, Wisconsin
Mary Williams' primary practice is Oneida Comprehensive Health (Airport Rd), at 525 Airport Rd, Oneida, WI 54155. The practice phone is (920) 869-2711.
- Oneida Comprehensive Health (Airport Rd)525 Airport Rd, Oneida, WI 54155Phone(920) 869-2711
Source: Dmand AI Affiliation Data
Mary Katherine Williams is affiliated with 5 sites of care and 3 medical groups
Mary Williams' primary practice is Oneida Comprehensive Health (Airport Rd) in Oneida, Wisconsin. Mary Williams is also affiliated with HSHS St. Vincent Hospital. The medical group on file is Oneida Community Health Center. Dmand AI also links Mary Williams to 3 more group practices and clinics and 2 medical groups, each named with a free account. Mary Williams' employer is on file too: a government & correctional health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mary Katherine Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Williams practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Oneida Comprehensive Health (Airport Rd) | Available with a free account |
| +4 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary Katherine Williams is one of 188 advanced practice midwifes in Wisconsin
Advanced practice midwife is Mary Williams' primary specialty in the NPI Registry, under taxonomy code 367A00000X. Mary Williams is licensed in Wisconsin.
Specialties and state licenses
- Advanced practice midwife, WisconsinPrimary
Advanced practice midwifes near Mary Williams
Counts of advanced practice midwifes 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
Mary Katherine Williams' patients have a median age of 32
Across all payers, Dmand AI patient panel data puts Mary Williams' median patient age at 32, with 99% women.
Mary Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 32
Patient panel by sex, all payers
- Women99%
- Men1%
Source: Dmand AI Patient Panel Data
Mary Katherine Williams wrote 54 Medicare Part D claims in 2024
In 2024, Mary Williams wrote 54 Medicare Part D claims for 23 patients. 94% of them were for generic drugs.
Mary Williams' Part D claims by kind of drug, 2024
- Generic51 claims94%
- Brand-name and other3 claims6%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
Mary Katherine Williams scored 95 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Mary Williams for performance year 2024, reported through an alternative payment model (APM). Mary Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Mary Williams' MIPS scores, performance year 2024
- 95of 100Final score
- 86of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Mary Katherine Williams received $191 in industry payments in 2025
CMS Open Payments shows 2 general payments to Mary Williams from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. Hologic Inc paid the most, $141.
Companies that paid Mary Williams the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Mary Katherine Williams'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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (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 Mary Katherine Williams
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mary Katherine Williams' NPI number?
Mary Katherine Williams' NPI number is 1578807673. It was assigned on November 15, 2012, and it is active in the NPI Registry.
What does Mary Katherine Williams specialize in?
Mary Katherine Williams is an advanced practice midwife in Oneida, Wisconsin. The primary specialty in the NPI Registry is Advanced Practice Midwife (taxonomy code 367A00000X).
Where does Mary Katherine Williams practice?
Mary Williams practices at 525 Airport Rd, Oneida, WI 54155. Mary Williams' primary practice is Oneida Comprehensive Health (Airport Rd) in Oneida, Wisconsin. Dmand AI also links Mary Williams to 3 group practices and clinics and 2 medical groups.
What is Mary Katherine Williams' office phone number?
The practice phone on file for Mary Williams is (920) 869-2711.
What is Mary Katherine Williams' medical license number?
Mary Williams holds Wisconsin license 148871-32.
Which hospitals is Mary Katherine Williams affiliated with?
Mary Williams is affiliated with HSHS St. Vincent Hospital.
What medical group is Mary Katherine Williams part of?
Mary Williams is linked to Oneida Community Health Center. Dmand AI links Mary Williams to 2 more medical groups.
Does Mary Katherine Williams accept Medicare?
Yes. CMS lists Mary Williams as accepting Medicare assignment.
What is Mary Katherine Williams' MIPS score?
Mary Williams' MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).
Has Mary Katherine Williams received payments from drug or device companies?
CMS Open Payments shows $191 in general payments to Mary Williams from 2 companies from 2025 to 2025. The largest total came from Hologic Inc.
How long has Mary Katherine Williams been practicing?
Mary Williams graduated from medical school in 2012, 14 years ago.
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