NPI registry status
Active
2026 NPPES data Colon & Rectal Surgery Physician NPI 1396921813 M.D.
Verify on CMS → Virginia Shaffer, M.D.
Colon & Rectal Surgery Physician in Chicago, Illinois.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 1,608 in Colon & Rectal Surgery 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
186
Medicare Part D claims · 69 beneficiaries · Colon & Rectal Surgery Physician avg: 196
Generic prescribing
80%
generic claims · 20% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
92.3/100
▲ 9 pts above national avg 83.1 · Exceptional
Industry payments
$706.43
5 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Virginia Shaffer, M.D. reported a CMS MIPS final score of 92.3/100 - above the 83.1 national average - and filed 186 Medicare Part D claims in 2023.
- 92.3/100
- MIPS score · +9 vs avg
- 186
- Part D claims, 2023
- 80%
- 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.
Virginia Shaffer, M.D.'s MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
92 Top 32% higher than 68% of 477,587 scored providers
Each bar is a band; taller bars hold more scored providers. 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.
Source CMS Merit-based Incentive Payment System (MIPS) · 2023
Where Virginia Shaffer, M.D. sits
This provider among colon & rectal surgery physician peers
Across the 536 colon & rectal surgery physician providers who report both Medicare Part D prescribing and a MIPS quality score, Virginia Shaffer, M.D. writes more Part D claims than 59% of them and scores higher on MIPS quality than 70% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Part D claim volume vs MIPS quality, by specialty percentile
Each dot is one colon & rectal surgery physician peer from a representative sample of 60; the gold marker is Virginia Shaffer, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Virginia Shaffer, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations - 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 Virginia Shaffer, M.D.?
High performer (top quartile)Primary specialty
Colon & Rectal Surgery Physician
Medicare Part D claims
186 5% vs specialty avg
MIPS final score
92.3/100 9.2 pts vs avg
Specialty distribution in Illinois
How Colon & Rectal Surgery Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Virginia Shaffer, M.D.'s 2023 MIPS final score plotted against the Colon & Rectal Surgery Physician national average
- MIPS Final Score
- 92.3/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Colon & Rectal Surgery Physician) - 92.3/100 vs national avg 83.1
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).
Virginia Shaffer, M.D. appears in the CMS NPPES registry as a Colon & Rectal Surgery Physician provider holding M.D. credentials at 5841 S MARYLAND AVE, Chicago, IL, 60637, with a listed phone of (888) 824-0200. NPI 1396921813 was issued on 01/15/2008.
Medicare Part D records for calendar year 2023 show 186 prescription claims written by this provider, covering 69 Medicare beneficiaries and totaling roughly $8K in drug spend, split 20% brand-name and 80% generic by claim count, with an opioid prescribing rate of 29.0%. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 92.3/100 for the 2023 performance year (Quality 73.8), compared with the national average of 83.1.
Colon & Rectal Surgery Physician is a narrow specialty nationwide, with 1,608 enrolled providers across 50 states and an average of 196 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 | 1396921813 |
|---|---|
| Specialty | Colon & Rectal Surgery Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 01/15/2008 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
92.2614
Final Score
Avg: 83.1
73.8353
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Virginia 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.
The University OF Chicago Medical Center
★★★★☆ 4/5
Chicago, IL
Acute Care Hospitals
CMS CCN: 140088
University OF Chicago
Chicago, IL
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 Virginia Shaffer, M.D.. Source: openpaymentsdata.cms.gov.
Total received
$706
Largest payer
INTUITIVE SURGICAL, INC.
Most common payment type
Travel and Lodging
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.
License & disciplinary context - Illinois IDFPR 2023 annual report
Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~42K Illinois medical licensees in 2023 - they are NOT specific to Virginia Shaffer, M.D.. To verify Virginia Shaffer, M.D.'s current license status, search the IDFPR public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
106
Total board actions, Illinois 2023
Across 103 cases
2.52
Actions per 1,000 licensees
Illinois statewide rate
probation
Most common action type
38 cases
IDFPR publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Illinois disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.
Brand vs generic prescribing mix · Typical
Virginia Shaffer, M.D. - brand share 20.0%
Colon & Rectal Surgery Physician average
20% brand-name claims vs 80% generic, on 186 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.
186
Total Claims
$8K
Total Drug Cost
69
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 187
- Total Day Supply
- 2,187
- Brand vs Generic
- 20% brand / 80% generic
- Brand Drug Cost
- $6K
- Generic Drug Cost
- $2K
- Opioid Claims
- 54 (29.0% rate)
- Antibiotic Claims
- 12
Patient Demographics
- Average Patient Age
- 66.6 years
- Avg HCC Risk Score
- 2.08
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 20, 65-74: 30, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 27 |
| Tramadol Hcl | 23 |
| Lactated Ringers "Ringer's Solution | N/A |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Colon & Rectal Surgery Physician Overview
How Virginia Shaffer, M.D. fits within the Colon & Rectal Surgery Physician landscape nationally.
1,608
Colon & Rectal Surgery Physician Providers in US
50
States with Colon & Rectal Surgery Physician
196
Avg Claims per Provider
Virginia Shaffer, M.D.'s 186 claims are below the specialty average of 196.
Nearby Colon & Rectal Surgery Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Shaffer.
Herand Abcarian
Chicago, IL
Dr. Kishore Alapati
MD
Moline, IL
Dr. Saeed Albalawi
MD
Chicago, IL
Dr. John Andrews
M.D.
Lake Forest, IL
Dr. Elisa Bianchi
MD
Chicago, IL
Compare Colon & Rectal Surgery 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 Illinois medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Colon & Rectal Surgery 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
What is Virginia Shaffer, M.D.'s specialty? ▼
Virginia Shaffer, M.D. specializes in Colon & Rectal Surgery Physician and practices in Chicago, Illinois. Credentials: M.D..
How much does Virginia Shaffer, M.D. prescribe under Medicare Part D? ▼
In 2023, Virginia Shaffer, M.D. wrote 186 Medicare Part D claims totaling $8K in drug costs for 69 beneficiaries.
What is Virginia Shaffer, M.D.'s Medicare quality score? ▼
Virginia Shaffer, M.D. has a CMS MIPS Final Score of 92.3/100 (Quality: 73.8). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Virginia Shaffer, M.D. located? ▼
Virginia Shaffer, M.D. is located at 5841 S MARYLAND AVE, Chicago, IL, 60637. Phone: (888) 824-0200.
What is Virginia Shaffer, M.D.'s NPI number? ▼
Virginia Shaffer, M.D.'s National Provider Identifier (NPI) is 1396921813, issued on 01/15/2008.
Does Virginia Shaffer, M.D. prescribe more brand-name or generic drugs? ▼
Virginia Shaffer, M.D.'s prescribing is 20% brand-name and 80% generic drugs by claim count, with $6K in brand drug costs.
Does Virginia Shaffer, M.D. prescribe opioids? ▼
Yes, Virginia Shaffer, M.D. had 54 opioid claims in 2023 with an opioid prescribing rate of 29.0%.
How many Colon & Rectal Surgery Physician providers are there in the US? ▼
There are 1,608 Colon & Rectal Surgery Physician providers across 50 states in the US. The average Colon & Rectal Surgery Physician provider writes 196 Medicare Part D claims per year.
What drugs does Virginia Shaffer, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, Virginia Shaffer, M.D.'s most frequently prescribed drugs include Oxycodone Hcl, Tramadol Hcl, Lactated Ringers. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Virginia Shaffer, M.D. accept Medicare? ▼
Virginia Shaffer, M.D. appears in CMS Medicare data with 186 Part D claims and 69 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Virginia Shaffer, M.D.'s credentials? ▼
Virginia Shaffer, M.D.'s NPI is 1396921813 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
Compiled from official public sources by the PlainDoctor editorial team.