Jenny Shaffer, M.D.
Radiation Oncology Physician in St Louis, Missouri.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 6,029 in Radiation Oncology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Source: CMS Medicare Part D Prescriber Public Use File, 2023
What the federal data shows
Jenny Shaffer, M.D. carries the neutral CMS MIPS final score of 75/100, assigned where no category was scored - and filed 870 Medicare Part D claims in 2023.
- 75/100
- CMS neutral score · not measured
- 870
- Part D claims, 2023
- 90%
- generic prescribing
- Likely
- board-certified (heuristic)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
Jenny Shaffer, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
870 ≥ 73rd percentile 73% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
Jenny Shaffer, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Jenny Shaffer, M.D.?
CMS neutral score, not measuredPrimary specialty
Medicare Part D claims
MIPS final score
Specialty distribution in Missouri
How Radiation Oncology Physician compares to other specialties among Missouri providers
Radiation Oncology Physician ranks #91 among Missouri's specialties (0.1% of in-state providers)
Each bar is a specialty's share of the Missouri provider total, by primary NUCC taxonomy. The highlighted bar is Radiation Oncology Physician; the long tail of smaller specialties is omitted for legibility.
MIPS score not measured
CMS assigned a neutral 75/100 threshold
CMS did not publish any Quality, Cost, Promoting Interoperability, or Improvement Activities category score for this clinician. This administrative threshold is not comparable with the national average of clinicians whose MIPS score was measured.
How MIPS and board certification work
The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.
Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).
Jenny Shaffer, M.D. appears in the CMS NPPES registry as a Radiation Oncology Physician provider holding M.D. credentials at 10010 KENNERLY ROAD, St Louis, MO, 63128, with a listed phone of (314) 525-1688. NPI 1073838322 was issued on 03/30/2010.
Medicare Part D records for calendar year 2023 show 870 prescription claims written by this provider, covering 227 Medicare beneficiaries and totaling roughly $35K in drug spend, split 10% brand-name and 90% generic by claim count, with an opioid prescribing rate of 15.9%. On the CMS Merit-based Incentive Payment System, this provider carries a Final Score of 75/100 for the 2023 performance year, but CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score: this is the neutral performance threshold CMS assigns where nothing was scored, so it is not comparable with clinicians whose score was measured.
Radiation Oncology Physician is a mid-sized specialty nationwide, with 6,029 enrolled providers across 53 states and an average of 186 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline.
Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist, always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.
Practice Address
Provider Details
| NPI | 1073838322 |
|---|---|
| Specialty | Radiation Oncology Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 03/30/2010 |
Verify this provider's license
PlainDoctor pulls this profile from the CMS NPPES public registry. Confirm Jenny Shaffer, M.D.'s current license status, disciplinary history, and board certifications with the Missouri Board of Registration for the Healing Arts in Missouri before relying on this page for a clinical or care decision.
How we sourced this profile
Profile fields combine the CMS NPPES monthly snapshot (provider directory, taxonomy, and address) with calendar-year 2023 Medicare Part D and MIPS public-use files when records are present. NPI 1073838322 is the unique 10-digit identifier CMS uses to link Shaffer across every Medicare, Medicaid, and HIPAA-covered transaction. Read full methodology →
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
Reporting: Individual
Hospital and facility affiliations
Facilities where Jenny Shaffer, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" - a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.
Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Jenny Shaffer, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$180
Largest payer
Novartis Pharmaceuticals Corporation
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Typical
10% brand-name claims vs 90% generic, on 870 2023 Medicare Part D claims.
The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
Prescribing Breakdown
- 30-Day Fills
- 1,109
- Total Day Supply
- 24,629
- Brand vs Generic
- 10% brand / 90% generic
- Brand Drug Cost
- $16K
- Generic Drug Cost
- $19K
- Opioid Claims
- 138 (15.9% rate)
- Antibiotic Claims
- 58
Patient Demographics
- Average Patient Age
- 73.0 years
- Avg HCC Risk Score
- 2.76
- Gender Split
- 56% female / 44% male
- Age Distribution
- <65: 20, 65-74: 119, 75-84: 73, 85+: 15
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Jenny Shaffer, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Dexamethasone
Dexamethasone
72 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
53 claims
- Levetiracetam
Levetiracetam
48 claims
- Tamsulosin Hcl
Tamsulosin Hcl
45 claims
- Prednisone
Prednisone
35 claims
- Lidocaine Hcl Visc…
Lidocaine Hcl Viscous
32 claims
- Triamcinolone Acet…
Triamcinolone Acetonide
32 claims
- Morphine Sulfate Er
Morphine Sulfate Er
29 claims
| Drug | Claims |
|---|---|
| Dexamethasone | 72 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 53 |
| Levetiracetam | 48 |
| Tamsulosin Hcl | 45 |
| Prednisone | 35 |
| Lidocaine Hcl Viscous Lidocaine Hcl | 32 |
| Triamcinolone Acetonide | 32 |
| Morphine Sulfate Er Morphine Sulfate | 29 |
| Pantoprazole Sodium | 29 |
| Sucralfate | 27 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Radiation Oncology Physician Overview
How Jenny Shaffer, M.D. fits within the Radiation Oncology Physician landscape nationally.
Jenny Shaffer, M.D.'s 870 claims are above the specialty average of 186.
Nearby Radiation Oncology Physician Providers in Missouri
Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as Shaffer.
One of 124 Radiation Oncology Physician providers enrolled in Missouri, 5 are shown here.
Compare Radiation Oncology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Missouri medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Radiation Oncology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Frequently Asked Questions
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Data Sources
View source datasets and methodology notes
- Provider Directory
- CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
- Specialty Classification
- NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
- Prescribing Data
- CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- Quality Performance
- CMS Merit-based Incentive Payment System (MIPS) - 2023 performance year.
- Limitations
- Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.
See our complete data methodology for details on how we collect and process government data.
Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).
Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.
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