Dr. Jennifer Elaine Williamson, MD
- Medicare services, 2024
- 1,613
- Medicare patients, 2024
- 558
- Part D claims, 2024
- 9,817
- MIPS score, 2024
- 94
- Hospital affiliations
- 4
- Practice address
- 640 Flormann St, Rapid City, SD 57701
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Monument Health Rapid City Hospital - Weight Management - HOPD
Acute Care Hospital outpatient department · Rapid City, South Dakota
Find Dr. Williamson's professional email, personal email and mobile number
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Dr. Jennifer Elaine Williamson is an internist in Rapid City, South Dakota
Dr. Williamson practices at Monument Health Rapid City Hospital - Weight Management - HOPD in Rapid City, South Dakota.
Dr. Williamson's NPI, 1427305721, was assigned on August 7, 2012. Dr. Williamson holds South Dakota license 9507.
- NPI
- 1427305721NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9931413390
- NPI enumeration date
- August 7, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 46
- Medical school graduation
- 2006
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jennifer Elaine Williamson practices at Monument Health Rapid City Hospital - Weight Management - HOPD in Rapid City, South Dakota
Dr. Williamson's primary practice is Monument Health Rapid City Hospital - Weight Management - HOPD, at 640 Flormann St, Rapid City, SD 57701.
- Monument Health Rapid City Hospital - Weight Management - HOPD640 Flormann St, Rapid City, SD 57701
Source: Dmand AI Affiliation Data
Dr. Jennifer Elaine Williamson is affiliated with 11 sites of care and 1 medical group
Dr. Williamson's primary practice is Monument Health Rapid City Hospital - Weight Management - HOPD in Rapid City, South Dakota. Dr. Williamson is also affiliated with Monument Health Rapid City Hospital. The medical group on file is Monument Health Rapid City Hospital. Dmand AI also links Dr. Williamson to 3 more hospitals, 3 home health agencies, 1 community health center, 1 group practice or clinic and 1 skilled nursing facility, each named with a free account. Dr. Williamson's employer is on file too: a hospital.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Jennifer Elaine Williamson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williamson practices, 11 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Monument Health Rapid City Hospital - Weight Management - HOPD | Available with a free account |
| +10 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jennifer Elaine Williamson is one of 267 internists in South Dakota
Internal medicine is Dr. Williamson's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Williamson is licensed in South Dakota.
Specialties and state licenses
- Internal medicine, South DakotaPrimary
Internists near Dr. Williamson
Counts of internists 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. Jennifer Elaine Williamson billed Medicare for 1,613 services in 2024
CMS data shows 1,613 Medicare services from Dr. Williamson across 10 procedure codes in 2024, for 558 Medicare patients. Medicare paid $117,249 for them. Every service was in an office.
Dr. Williamson's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,1632024: 1,1953%
- Other services
- 2023: 4082024: 4182%
Dr. Williamson compared with the South Dakota median for internists, 2024
- Dr. Williamson
- South Dakota median
- Medicare services
- 1,613vs 5423.0 times
- Medicare patients
- 558vs 2362.4 times
- Part D claims
- 9,078vs 12473.2 times
Medians across 262 internists in South Dakota with Dmand AI profiles that report each measure.
Dr. Williamson's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williamson and other internists in South Dakota.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jennifer Elaine Williamson treated 558 Medicare patients in 2024, average age 74
CMS counts 558 Medicare patients who saw Dr. Williamson in 2024. The largest group is 65 to 74, with 297 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 6% are also on Medicaid. Their average risk score is 1.14, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Williamson's median patient age at 74, with 70% women.
Dr. Williamson's Medicare patients by age, 2024
Dr. Williamson's Medicare patients by sex, 2024
- Women38669%
- Men17231%
Chronic conditions among Dr. Williamson's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Osteoporosis32%
- Diabetes30%
- Chronic kidney disease26%
- Ischemic heart disease26%
- Mood disorders25%
Share of Medicare patients with each condition. A patient can have several.
Dr. Williamson's 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
- Women70%
- Men30%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jennifer Elaine Williamson wrote 9,817 Medicare Part D claims in 2024
In 2024, Dr. Williamson wrote 9,817 Medicare Part D claims for 668 patients. 87% of them were for generic drugs. CMS names the drug for 9,078 of them, across 130 drugs with 11 or more claims each, at $625,488 in total drug cost. In 2023, CMS named 9,220 claims across 132 drugs.
Dr. Williamson's Part D claims by kind of drug, 2024
- Generic8,567 claims87%
- Brand-name1,174 claims12%
- Other76 claims1%
Dr. Williamson's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Williamson's Part D claims, 2024
- Opioids0%47 of 9,817 claims
- Antibiotics2%165 of 9,817 claims
- Antipsychotics, patients 65 and over1%56 of 9,817 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 9,2202024: 9,0782%
Drugs named by CMS: 130 in 2024, 132 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Jennifer Elaine Williamson scored 94 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Williamson for performance year 2024, reported through an alternative payment model (APM). Dr. Williamson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Williamson's MIPS scores, performance year 2024
- 94of 100Final score
- 80.4of 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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Dr. Jennifer Elaine Williamson received $133 in industry payments in 2020
CMS Open Payments shows 1 general payment to Dr. Williamson from 1 drug or device company in 2020. Food and beverage make up the largest share, 100% of the total. C. R. Bard, Inc. & Subsidiaries paid the most, $133.
Companies that paid Dr. Williamson the most, 2020 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Jennifer Elaine Williamson'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 Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (CMS) (opens in a new tab)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 Dr. Jennifer Elaine Williamson
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. Jennifer Elaine Williamson's NPI number?
Dr. Jennifer Elaine Williamson's NPI number is 1427305721. It was assigned on August 7, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Jennifer Elaine Williamson?
Dr. Jennifer Elaine Williamson is an internist in Rapid City, South Dakota. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Jennifer Elaine Williamson practice?
Dr. Williamson practices at 640 Flormann St, Rapid City, SD 57701. Dr. Williamson's primary practice is Monument Health Rapid City Hospital - Weight Management - HOPD in Rapid City, South Dakota. Dmand AI also links Dr. Williamson to 3 hospitals, 3 home health agencies, 1 community health center, 1 group practice or clinic and 1 skilled nursing facility.
What is Dr. Jennifer Elaine Williamson's medical license number?
Dr. Williamson holds South Dakota license 9507.
Which hospitals is Dr. Jennifer Elaine Williamson affiliated with?
Dr. Williamson is affiliated with Monument Health Rapid City Hospital. Dmand AI links Dr. Williamson to 3 more hospitals.
What medical group is Dr. Jennifer Elaine Williamson part of?
Dr. Williamson is linked to Monument Health Rapid City Hospital.
Does Dr. Jennifer Elaine Williamson accept Medicare?
Yes. CMS data shows Dr. Williamson billed Medicare for 1,613 services in 2024, and Dr. Williamson accepts Medicare assignment.
What is Dr. Jennifer Elaine Williamson's MIPS score?
Dr. Williamson's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Jennifer Elaine Williamson see?
CMS counts 558 Medicare patients who saw Dr. Williamson in 2024, with an average age of 74.
What services does Dr. Jennifer Elaine Williamson bill to Medicare?
In 2024, Dr. Williamson's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and medicare service (G0439).
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What drugs does Dr. Jennifer Elaine Williamson prescribe most?
In 2024 Medicare Part D data, Dr. Williamson's most prescribed drugs by claims were Levothyroxine Sodium, Losartan Potassium and Atorvastatin Calcium.
Has Dr. Jennifer Elaine Williamson received payments from drug or device companies?
CMS Open Payments shows $133 in general payments to Dr. Williamson from 1 company from 2020 to 2020. The largest total came from C. R. Bard, Inc. & Subsidiaries.
How long has Dr. Jennifer Elaine Williamson been practicing?
Dr. Williamson graduated from medical school in 2006, 20 years ago.
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