2026 NPPES data Radiation Oncology Physician NPI 1073838322 M.D.
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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.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
870
Medicare Part D claims · 227 beneficiaries · Radiation Oncology Physician avg: 186
Generic prescribing
90%
generic claims · 10% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
75/100
CMS neutral threshold · no category scores published
Industry payments
$179.75
8 payments · CMS Open Payments (Sunshine Act)

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

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). This entry sits in this band. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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

Board certification likely (heuristic, not verified)

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 measured

NPI registry status

Active

Issued 03/30/2010

NPI 1073838322

Primary specialty

Radiation Oncology Physician

Mid-sized

6,029 US NPIs in this specialty

Medicare Part D claims

870 368% vs specialty avg

2023 prescription claims

Specialty avg: 186

MIPS final score

75/100

CMS neutral score, not measured

No category scores published; CMS assigned the performance threshold

Specialty distribution in Missouri

How Radiation Oncology Physician compares to other specialties among Missouri providers

Missouri providers
Pharmacist4.8%Professional Counselor4.8%Speech-Language Pathologist4.5%Clinical Social Worker4.5%Family Nurse Practitioner4.3%Physical Therapist4%Radiation Oncology Physician0.1%
Largest specialties in Missouri (% of in-state providers)

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

10010 KENNERLY ROAD
St Louis, MO 63128

Provider Details

NPI 1073838322
Specialty Radiation Oncology Physician
Credentials M.D.
Gender Female
NPI Issued 03/30/2010

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

75
Final Score
CMS neutral threshold · not measured

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.

West County Radiological Group Inc
Saint Louis, MO

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

Jenny Shaffer, M.D. - brand share 10.0%
Radiation Oncology Physician average

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.

870
Total Claims
$35K
Total Drug Cost
227
Medicare Beneficiaries

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

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
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.

6,029
Radiation Oncology Physician Providers in US
53
States with Radiation Oncology Physician
186
Avg Claims per Provider

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.

Frequently Asked Questions

What is Jenny Shaffer, M.D.'s specialty?
Jenny Shaffer, M.D. specializes in Radiation Oncology Physician and practices in St Louis, Missouri. Credentials: M.D..
How much does Jenny Shaffer, M.D. prescribe under Medicare Part D?
In 2023, Jenny Shaffer, M.D. wrote 870 Medicare Part D claims totaling $35K in drug costs for 227 beneficiaries.
What is Jenny Shaffer, M.D.'s Medicare quality score?
Jenny Shaffer, M.D. has a CMS MIPS Final Score of 75/100. CMS published no Quality, Promoting Interoperability, Improvement Activity or Cost score for this clinician, so the final score is the neutral performance threshold CMS assigns rather than a measured result. The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Jenny Shaffer, M.D. located?
Jenny Shaffer, M.D. is located at 10010 KENNERLY ROAD, St Louis, MO, 63128. Phone: (314) 525-1688.
What is Jenny Shaffer, M.D.'s NPI number?
Jenny Shaffer, M.D.'s National Provider Identifier (NPI) is 1073838322, issued on 03/30/2010.
Does Jenny Shaffer, M.D. prescribe more brand-name or generic drugs?
Jenny Shaffer, M.D.'s prescribing is 10% brand-name and 90% generic drugs by claim count, with $16K in brand drug costs.
Does Jenny Shaffer, M.D. prescribe opioids?
Yes, Jenny Shaffer, M.D. had 138 opioid claims in 2023 with an opioid prescribing rate of 15.9%.
How many Radiation Oncology Physician providers are there in the US?
There are 6,029 Radiation Oncology Physician providers across 53 states in the US. The average Radiation Oncology Physician provider writes 186 Medicare Part D claims per year.
What drugs does Jenny Shaffer, M.D. prescribe most often?
Based on 2023 Medicare Part D data, Jenny Shaffer, M.D.'s most frequently prescribed drugs include Dexamethasone, Hydrocodone-Acetaminophen, Levetiracetam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Jenny Shaffer, M.D. accept Medicare?
Jenny Shaffer, M.D. appears in CMS Medicare data with 870 Part D claims and 227 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Jenny Shaffer, M.D.'s credentials?
Jenny Shaffer, M.D.'s NPI is 1073838322 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

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.