Dr. Jenny Lynne Shaffer, MD
- Medicare services, 2024
- 2,261
- Medicare patients, 2024
- 253
- Part D claims, 2024
- 1,055
- Publications
- 10
- MIPS score, 2024
- 85
- Practice address
- 10010 Kennerly Road, Saint Louis, MO 63128
- Practice phone
- Call (314) 525-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Shaffer's professional email, personal email and mobile number
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Dr. Jenny Lynne Shaffer is a radiation oncologist in Saint Louis, Missouri
Dr. Shaffer practices at Mercy Hospital South in Saint Louis, Missouri, part of Mercy.
Dr. Shaffer's NPI, 1073838322, was assigned on March 30, 2010. Dr. Shaffer graduated from University of Missouri, Columbia School of Medicine in 2008. Dr. Shaffer holds Missouri license 2017014159.
- NPI
- 1073838322NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8325318454
- NPI enumeration date
- March 30, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (314) 525-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Jenny Lynne Shaffer practices at Mercy Hospital South in Saint Louis, Missouri
Dr. Shaffer's primary practice is Mercy Hospital South, at 10010 Kennerly Road, Saint Louis, MO 63128 in St. Louis County. The practice phone is (314) 525-1000.
- Mercy Hospital South10010 Kennerly Road, Saint Louis, MO 63128 · St. Louis CountyPhone(314) 525-1000
Source: Dmand AI Affiliation Data
Dr. Jenny Lynne Shaffer is affiliated with 3 sites of care and 1 medical group
Dr. Shaffer's primary practice is Mercy Hospital South in Saint Louis, Missouri, part of Mercy. Dr. Shaffer is also affiliated with Mercy Hospital St. Louis. The medical group on file is West County Radiological Group. Dmand AI also links Dr. Shaffer to 1 more hospital, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Jenny Lynne Shaffer's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shaffer practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mercy Hospital South | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Jenny Lynne Shaffer is one of 117 radiation oncologists in Missouri
Radiation oncology is Dr. Shaffer's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Shaffer is licensed in Missouri.
Specialties and state licenses
- Radiation oncology, MissouriPrimary
Radiation oncologists near Dr. Shaffer
Counts of radiation oncologists 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. Jenny Lynne Shaffer billed Medicare for 2,261 services in 2024
CMS data shows 2,261 Medicare services from Dr. Shaffer across 16 procedure codes in 2024, for 253 Medicare patients. Medicare paid $150,818 for them.
Dr. Shaffer's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,9122024: 2,0467%
- Office and hospital visits
- 2023: 2242024: 2154%
Where Dr. Shaffer's Medicare services took place, 2024
- In an office1,92885%
- In a facility33315%
Dr. Shaffer compared with the Missouri median for radiation oncologists, 2024
- Dr. Shaffer
- Missouri median
- Medicare services
- 2,261vs 1,21087% above
- Medicare patients
- 253vs 18140% above
- Part D claims
- 837vs 6013.9 times
Medians across 117 radiation oncologists in Missouri with Dmand AI profiles that report each measure.
Dr. Shaffer'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. Shaffer and other radiation oncologists in Missouri.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Jenny Lynne Shaffer treated 253 Medicare patients in 2024, average age 75
CMS counts 253 Medicare patients who saw Dr. Shaffer in 2024. The largest group is 65 to 74, with 115 patients. 75% of them have cancer, and 75% have high blood pressure. 11% are also on Medicaid. Their average risk score is 2.11, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Shaffer's median patient age at 74, with 54% women.
Dr. Shaffer's Medicare patients by age, 2024
Dr. Shaffer's Medicare patients by sex, 2024
- Women13353%
- Men12047%
Chronic conditions among Dr. Shaffer's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Arthritis53%
- Ischemic heart disease38%
- COPD36%
- Mood disorders36%
- Anxiety35%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shaffer'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
- Women54%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Jenny Lynne Shaffer wrote 1,055 Medicare Part D claims in 2024
In 2024, Dr. Shaffer wrote 1,055 Medicare Part D claims for 286 patients. 84% of them were for generic drugs. CMS names the drug for 837 of them, across 29 drugs with 11 or more claims each, at $246,362 in total drug cost. In 2023, CMS named 700 claims across 26 drugs.
Dr. Shaffer's Part D claims by kind of drug, 2024
- Generic883 claims84%
- Brand-name and other172 claims16%
Dr. Shaffer'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. Shaffer's Part D claims, 2024
- Opioids11%113 of 1,055 claims
- Antibiotics6%65 of 1,055 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: 7002024: 83720%
Drugs named by CMS: 29 in 2024, 26 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. Jenny Lynne Shaffer scored 85 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 85 out of 100 for Dr. Shaffer for performance year 2024, reported as part of a group. Dr. Shaffer accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Shaffer as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Shaffer's MIPS scores, performance year 2024
- 85of 100Final score
- 86.9of 100Quality
- 40of 100Improvement Activities
- 73of 100Cost
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. Jenny Lynne Shaffer has 10 publications on record
Dmand AI links 10 papers to Dr. Shaffer, published from 2013 to 2018. 2016 was the busiest year, with 3. Dr. Shaffer's most frequent co-authors are Daniel Tandel Chang, MD, Albert C. Koong, MD, PhD and Evan Charles Osmundson, MD, PhD.
Dr. Shaffer's papers by year, 2013 to 2018
Dr. Shaffer's most frequent co-authors
- Daniel Tandel Chang, MD7 shared papers
- Albert C. Koong, MD, PhD5 shared papers
- Evan Charles Osmundson, MD, PhD3 shared papers
Recent publications by Dr. Shaffer
See who Dr. Shaffer researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Shaffer works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Jenny Lynne Shaffer received $662 in industry payments from 2017 to 2025
CMS Open Payments shows 25 general payments to Dr. Shaffer from 11 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Myriad Genetic Laboratories, Inc. paid the most, $239.
General payments to Dr. Shaffer by program year, 2017 to 2025
Companies that paid Dr. Shaffer the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Jenny Lynne Shaffer graduated from University of Missouri, Columbia School of Medicine
Dr. Shaffer graduated from University of Missouri, Columbia School of Medicine in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Jenny Lynne Shaffer'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 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Dr. Jenny Lynne Shaffer
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. Jenny Lynne Shaffer's NPI number?
Dr. Jenny Lynne Shaffer's NPI number is 1073838322. It was assigned on March 30, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Jenny Lynne Shaffer?
Dr. Jenny Lynne Shaffer is a radiation oncologist in Saint Louis, Missouri. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Jenny Lynne Shaffer practice?
Dr. Shaffer practices at 10010 Kennerly Road, Saint Louis, MO 63128. Dr. Shaffer's primary practice is Mercy Hospital South in Saint Louis, Missouri, part of Mercy. Dmand AI also links Dr. Shaffer to 1 hospital.
What is Dr. Jenny Lynne Shaffer's office phone number?
The practice phone on file for Dr. Shaffer is (314) 525-1000.
What is Dr. Jenny Lynne Shaffer's medical license number?
Dr. Shaffer holds Missouri license 2017014159.
Which hospitals is Dr. Jenny Lynne Shaffer affiliated with?
Dr. Shaffer practices at Mercy Hospital South in Saint Louis, Missouri. Dr. Shaffer is also affiliated with Mercy Hospital St. Louis. Dmand AI links Dr. Shaffer to 1 more hospital.
What medical group is Dr. Jenny Lynne Shaffer part of?
Dr. Shaffer is linked to West County Radiological Group.
Does Dr. Jenny Lynne Shaffer accept Medicare?
Yes. CMS data shows Dr. Shaffer billed Medicare for 2,261 services in 2024, and Dr. Shaffer accepts Medicare assignment.
Does Dr. Jenny Lynne Shaffer offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Shaffer as offering telehealth services.
What is Dr. Jenny Lynne Shaffer's MIPS score?
Dr. Shaffer's MIPS final score for performance year 2024 is 85 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Jenny Lynne Shaffer see?
CMS counts 253 Medicare patients who saw Dr. Shaffer in 2024, with an average age of 75.
What services does Dr. Jenny Lynne Shaffer bill to Medicare?
In 2024, Dr. Shaffer's most billed Medicare services were radiation oncology (77014), radiation oncology (77334) and radiation oncology (77300).
Where did Dr. Jenny Lynne Shaffer go to medical school?
Dr. Shaffer graduated from University of Missouri, Columbia School of Medicine in 2008.
What drugs does Dr. Jenny Lynne Shaffer prescribe most?
In 2024 Medicare Part D data, Dr. Shaffer's most prescribed drugs by claims were Orgovyx, Tamsulosin HCl and Dexamethasone.
Has Dr. Jenny Lynne Shaffer received payments from drug or device companies?
CMS Open Payments shows $662 in general payments to Dr. Shaffer from 11 companies from 2017 to 2025. The largest total came from Myriad Genetic Laboratories, Inc.
How long has Dr. Jenny Lynne Shaffer been practicing?
Dr. Shaffer graduated from medical school in 2008, 18 years ago.
Does Dr. Jenny Lynne Shaffer do research?
Dmand AI links 10 publications to Dr. Shaffer, published from 2013 to 2018.
Who does Dr. Jenny Lynne Shaffer publish with?
Dr. Shaffer's most frequent co-authors are Daniel Tandel Chang, MD (7 shared papers), Albert C. Koong, MD, PhD (5 shared papers) and Evan Charles Osmundson, MD, PhD (3 shared papers).
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