Mamie Choy Williams, ARNP
- Medicare patients, 2024
- 470
- Part D claims, 2024
- 137
- Hospital affiliations
- 3
- Industry payments
- $231
- Medical group
- 1
- Practice address
- 2825 Capitol Avenue, Sacramento, CA 95816
- Practice phone
- Call (916) 454-2222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Mamie 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.
Mamie Choy Williams is a nurse practitioner in Sacramento, California
Mamie Williams practices at Sutter Medical Center, Sacramento in Sacramento, California, part of Sutter Health.
Mamie Williams' NPI, 1386071264, was assigned on October 9, 2013. Mamie Williams holds California license 95024184.
- NPI
- 1386071264NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4688992472
- NPI enumeration date
- October 9, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (916) 454-2222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 37
- Medical school graduation
- 2015
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Mamie Choy Williams practices at Sutter Medical Center, Sacramento in Sacramento, California
Mamie Williams' primary practice is Sutter Medical Center, Sacramento, at 2825 Capitol Avenue, Sacramento, CA 95816 in Sacramento County. The practice phone is (916) 454-2222.
- Sutter Medical Center, Sacramento2825 Capitol Avenue, Sacramento, CA 95816 · Sacramento CountyPhone(916) 454-2222
Source: Dmand AI Affiliation Data
Mamie Choy Williams is affiliated with 4 sites of care and 1 medical group
Mamie Williams' primary practice is Sutter Medical Center, Sacramento in Sacramento, California, part of Sutter Health. Mamie Williams is also affiliated with Sutter Roseville Medical Center. The medical group on file is SGMF Radiology. Dmand AI also links Mamie Williams to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Mamie Choy Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mamie Williams practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Medical Center, Sacramento | Available with a free account |
| +3 more affiliated sites | 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 Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Mamie Choy Williams is one of 5,983 nurse practitioners in California
Nurse practitioner is Mamie Williams' primary specialty in the NPI Registry, under taxonomy code 363L00000X. Dmand AI has Mamie Williams' licenses on file in 3 states: California, New York and Washington.
Specialties and state licenses
- Nurse practitioner, CaliforniaPrimary
- Registered nurse, New York
- Washington license
Nurse practitioners near Mamie Williams
Counts of 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
Mamie Choy Williams treated 470 Medicare patients in 2024, average age 77
CMS counts 470 Medicare patients who saw Mamie Williams in 2024. The largest group is 75 to 84, with 202 patients. 74% of them have high cholesterol, and 72% have high blood pressure. 8% are also on Medicaid. Their average risk score is 1.64, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Mamie Williams' median patient age at 74, with 80% women.
Mamie Williams' Medicare patients by age, 2024
Mamie Williams' Medicare patients by sex, 2024
- Women35175%
- Men11925%
Chronic conditions among Mamie Williams' Medicare patients, 2024
- High cholesterol74%
- High blood pressure72%
- Cancer65%
- Arthritis53%
- Chronic kidney disease30%
- Osteoporosis27%
- Diabetes25%
- Anxiety24%
Share of Medicare patients with each condition. A patient can have several.
Mamie Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women80%
- Men19%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Mamie Choy Williams wrote 137 Medicare Part D claims in 2024
In 2024, Mamie Williams wrote 137 Medicare Part D claims for 64 patients. 89% of them were for generic drugs.
Mamie Williams' Part D claims by kind of drug, 2024
- Generic122 claims89%
- Brand-name15 claims11%
Drug classes CMS tracks in Mamie Williams' Part D claims, 2024
- Opioids16%22 of 137 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
Mamie Choy Williams offers telehealth to Medicare patients
Mamie Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Mamie Williams as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Mamie Choy Williams received $231 in industry payments in 2025
CMS Open Payments shows 4 general payments to Mamie Williams from 3 drug and device companies in 2025. Food and beverage make up the largest share, 57% of the total. Gilead Sciences, Inc. paid the most, $165.
General payments to Mamie Williams by kind, 2025 to 2025
- Food and beverage$13257%
- Education$9943%
Companies that paid Mamie 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 Mamie Choy 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 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) |
| 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 Mamie Choy 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 Mamie Choy Williams' NPI number?
Mamie Choy Williams' NPI number is 1386071264. It was assigned on October 9, 2013, and it is active in the NPI Registry.
What does Mamie Choy Williams specialize in?
Mamie Choy Williams is a nurse practitioner in Sacramento, California. The primary specialty in the NPI Registry is Nurse Practitioner (taxonomy code 363L00000X).
Where does Mamie Choy Williams practice?
Mamie Williams practices at 2825 Capitol Avenue, Sacramento, CA 95816. Mamie Williams' primary practice is Sutter Medical Center, Sacramento in Sacramento, California, part of Sutter Health. Dmand AI also links Mamie Williams to 1 hospital and 1 group practice or clinic.
What is Mamie Choy Williams' office phone number?
The practice phone on file for Mamie Williams is (916) 454-2222.
What is Mamie Choy Williams' medical license number?
Mamie Williams holds California license 95024184, one of the licenses on file in 3 states.
Which states has Mamie Choy Williams been licensed in?
Dmand AI has state licenses on file for Mamie Williams in California, New York and Washington.
Which hospitals is Mamie Choy Williams affiliated with?
Mamie Williams practices at Sutter Medical Center, Sacramento in Sacramento, California. Mamie Williams is also affiliated with Sutter Roseville Medical Center. Dmand AI links Mamie Williams to 1 more hospital.
What medical group is Mamie Choy Williams part of?
Mamie Williams is linked to SGMF Radiology.
Does Mamie Choy Williams accept Medicare?
Yes. CMS lists Mamie Williams as accepting Medicare assignment.
Does Mamie Choy Williams offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Mamie Williams as offering telehealth services.
Show 3 more questionsShow fewer questions
How many Medicare patients does Mamie Choy Williams see?
CMS counts 470 Medicare patients who saw Mamie Williams in 2024, with an average age of 77.
Has Mamie Choy Williams received payments from drug or device companies?
CMS Open Payments shows $231 in general payments to Mamie Williams from 3 companies from 2025 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Mamie Choy Williams been practicing?
Mamie Williams graduated from medical school in 2015, 11 years ago.
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