Mary Lynn Williams, NPC
- Medicare patients, 2024
- 75
- Part D claims, 2024
- 1,301
- Hospital affiliations
- 2
- Industry payments
- $101
- Medical groups
- 4
- Practice address
- 100 Cheyenne Ave, Lame Deer, MT 59043
- Practice phone
- Call (406) 477-4400
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Lame Deer Health Center
Lame Deer, Montana
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 Lynn Williams is a family nurse practitioner in Lame Deer, Montana
Mary Williams practices at Lame Deer Health Center in Lame Deer, Montana.
Mary Williams' NPI, 1174846216, was assigned on March 3, 2010. Mary Williams graduated from Vanderbilt University School of Medicine in 2009. Mary Williams holds Georgia license RN102733.
- NPI
- 1174846216NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214163567
- NPI enumeration date
- March 3, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (406) 477-4400
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Mary Lynn Williams practices at Lame Deer Health Center in Lame Deer, Montana
Mary Williams' primary practice is Lame Deer Health Center, at 100 Cheyenne Ave, Lame Deer, MT 59043 in Rosebud County. The practice phone is (406) 477-4400.
- Lame Deer Health Center100 Cheyenne Ave, Lame Deer, MT 59043 · Rosebud CountyPhone(406) 477-4400
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Mary Lynn Williams is affiliated with 4 sites of care and 4 medical groups
Mary Williams' primary practice is Lame Deer Health Center in Lame Deer, Montana. Mary Williams is also affiliated with Billings Clinic Hospital. The medical group on file is Verne E. Gibbs Health Center. Dmand AI also links Mary Williams to 1 more hospital, 3 medical groups and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mary Lynn Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mary Williams practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Lame Deer Health Center | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Mary Lynn Williams is one of 680 family nurse practitioners in Montana
Family is Mary Williams' primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Mary Williams is licensed in Georgia.
Specialties and state licenses
- Family nurse practitioner, GeorgiaPrimary
Family nurse practitioners near Mary Williams
Counts of family nurse practitioners 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 Lynn Williams treated 75 Medicare patients in 2024, average age 70
CMS counts 75 Medicare patients who saw Mary Williams in 2024. The largest group is 65 to 74, with 39 patients. 75% of them have high blood pressure, and 57% have diabetes. 27% are also on Medicaid. Their average risk score is 1.19, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Mary Williams' median patient age at 66, with 51% women.
Mary Williams' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Mary Williams' Medicare patients by sex, 2024
- Women4560%
- Men3040%
Chronic conditions among Mary Williams' Medicare patients, 2024
- High blood pressure75%
- Diabetes57%
- High cholesterol40%
- Arthritis37%
- Tobacco use28%
- Chronic kidney disease25%
- Ischemic heart disease20%
- Cancer17%
Share of Medicare patients with each condition. A patient can have several.
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 66
Patient panel by sex, all payers
- Women51%
- Men49%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mary Lynn Williams wrote 1,301 Medicare Part D claims in 2024
In 2024, Mary Williams wrote 1,301 Medicare Part D claims for 305 patients. 81% of them were for generic drugs.
Mary Williams' Part D claims by kind of drug, 2024
- Generic1,050 claims81%
- Brand-name237 claims18%
- Other14 claims1%
Drug classes CMS tracks in Mary Williams' Part D claims, 2024
- Opioids2%25 of 1,301 claims
- Antibiotics3%44 of 1,301 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Mary Lynn Williams takes part in Medicare
Mary Williams 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)
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Mary Lynn Williams received $101 in industry payments in 2025
CMS Open Payments shows 1 general payment to Mary Williams from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $101.
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
Mary Lynn Williams graduated from Vanderbilt University School of Medicine
Mary Williams graduated from Vanderbilt University School of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Mary Lynn 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| 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 Mary Lynn 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 Lynn Williams' NPI number?
Mary Lynn Williams' NPI number is 1174846216. It was assigned on March 3, 2010, and it is active in the NPI Registry.
What does Mary Lynn Williams specialize in?
Mary Lynn Williams is a family nurse practitioner in Lame Deer, Montana. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Mary Lynn Williams practice?
Mary Williams practices at 100 Cheyenne Ave, Lame Deer, MT 59043. Mary Williams' primary practice is Lame Deer Health Center in Lame Deer, Montana. Dmand AI also links Mary Williams to 1 hospital, 3 medical groups and 1 group practice or clinic.
What is Mary Lynn Williams' office phone number?
The practice phone on file for Mary Williams is (406) 477-4400.
What is Mary Lynn Williams' medical license number?
Mary Williams holds Georgia license RN102733.
Which hospitals is Mary Lynn Williams affiliated with?
Mary Williams is affiliated with Billings Clinic Hospital. Dmand AI links Mary Williams to 1 more hospital.
What medical group is Mary Lynn Williams part of?
Mary Williams is linked to Verne E. Gibbs Health Center. Dmand AI links Mary Williams to 3 more medical groups.
Does Mary Lynn Williams accept Medicare?
Yes. CMS lists Mary Williams as accepting Medicare assignment.
How many Medicare patients does Mary Lynn Williams see?
CMS counts 75 Medicare patients who saw Mary Williams in 2024, with an average age of 70.
Where did Mary Lynn Williams go to medical school?
Mary Williams graduated from Vanderbilt University School of Medicine in 2009.
Has Mary Lynn Williams received payments from drug or device companies?
CMS Open Payments shows $101 in general payments to Mary Williams from 1 company from 2025 to 2025. The largest total came from Abbott Laboratories.
How long has Mary Lynn Williams been practicing?
Mary Williams graduated from medical school in 2009, 17 years ago.
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