NPI registry status
Active
2026 NPPES data Emergency Medicine Physician NPI 1306813753 M.D.
Verify on CMS → Nancy Eiseman, M.D.
Emergency Medicine Physician in Lisle, 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 66,293 in Emergency Medicine 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
329
Medicare Part D claims · 261 beneficiaries · Emergency Medicine Physician avg: 355
What the federal data shows
Nancy Eiseman, M.D. filed 329 Medicare Part D claims in 2024 as an Emergency Medicine Physician in Lisle, Illinois.
- 329
- Part D claims, 2024
- Likely
- board-certified (heuristic)
- ≥56th
- pct by Part D claim volume (lower-bound band)
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.
Federal trust snapshot
What official records show about Nancy Eiseman, M.D.
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1306813753), first enumerated 03/03/2006.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 329 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Board certification signal
Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- State context
State board disciplinary context
Illinois statewide board action statistics are published annually — these figures describe aggregate state activity, not Nancy Eiseman, M.D.'s individual license status. Verify directly with the state medical board.
Source: IDFPR annual report 2023
- Not in federal data
Individual sanction lookup
PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.
Source: State medical board / FSMB
This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.
CMS NPPES provider registry desk
NPI 1306813753 · Emergency Medicine Physician
NPI-10 · ENUM-LEGACY · TAX-MEGA · RX-LIGHT · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1306813753
- ENUM-LEGACY 2006
- TAX-MEGA 66K Emergency Medicine
- RX-LIGHT 329
- BOOK-LIGHT 3,096 in Illinois
- PHOTO-ENUM John Johnston, MD · 2006
Nancy Eiseman, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
329 ≥ 56th percentile 56% of 1,416,883 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 · 2024
✓
Board certification likely (heuristic, not verified)
Nancy Eiseman, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 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 Nancy Eiseman, M.D.?
Quality data not reportedPrimary specialty
Emergency Medicine Physician
Medicare Part D claims
329 7% vs specialty avg
Specialty distribution in Illinois
How Emergency Medicine Physician compares to other specialties among Illinois providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Emergency Medicine Physician. Verify directly:
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).
Practice Address
Provider Details
| NPI | 1306813753 |
|---|---|
| Specialty | Emergency Medicine Physician |
| Credentials | M.D. |
| Gender | Female |
| NPI Issued | 03/03/2006 |
Hospital and facility affiliations
Facilities where Nancy Eiseman, 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.
Dupage Medical Group Ltd
Schaumburg, 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).
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 Nancy Eiseman, M.D.. To verify Nancy Eiseman, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2024.
329
Total Claims
$6K
Total Drug Cost
261
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 333.233
- Total Day Supply
- 2,900
- Generic Drug Cost
- $2K
- Opioid Claims
- 21 (6.4% rate)
- Antibiotic Claims
- 194
Patient Demographics
- Average Patient Age
- 75.1 years
- Avg HCC Risk Score
- 1.14
- Gender Split
- 66% female / 34% male
- Age Distribution
- <65: 13, 65-74: 115, 75-84: 92, 85+: 41
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Nancy Eiseman, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2024
- Azithromycin
Azithromycin
52 claims
- Nitrofurantoin Mon…
Nitrofurantoin Mono-Macro
30 claims
- Prednisone
Prednisone
24 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
23 claims
- Cephalexin 20
Cephalexin
20 claims
- Albuterol Sulfate … 18
Albuterol Sulfate Hfa
18 claims
- Amoxicillin 17
Amoxicillin
17 claims
- Sulfamethoxazole-T… 15
Sulfamethoxazole-Trimethoprim
15 claims
| Drug | Claims |
|---|---|
| Azithromycin | 52 |
| Nitrofurantoin Mono-Macro Nitrofurantoin Monohyd/M-Cryst | 30 |
| Prednisone | 24 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 23 |
| Cephalexin | 20 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 18 |
| Amoxicillin | 17 |
| Sulfamethoxazole-Trimethoprim Sulfamethoxazole/Trimethoprim | 15 |
| Doxycycline Hyclate | 14 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Emergency Medicine Physician Overview
How Nancy Eiseman, M.D. fits within the Emergency Medicine Physician landscape nationally.
66,293
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
355
Avg Claims per Provider
Nancy Eiseman, M.D.'s 329 claims are below the specialty average of 355.
Nationwide Emergency Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Eiseman, both outside Illinois so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2006)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Emergency Medicine Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Eiseman.
One of 3,096 Emergency Medicine Physician providers enrolled in Illinois, 5 are shown here.
Dr. Osama Aaflaq
M.D.
Carbondale, IL
Dr. Suresh Abad
M.D.
Vernon Hills, IL
Dr. Albert Abalos
M.D.
Elmhurst, IL
Dr. Habib Abbasi
M.D.
Joliet, IL
Dr. Andrew Abbeg
D.O.
Greenville, IL
Compare Emergency Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Nancy Eiseman, M.D.'s specialty? ▼
Nancy Eiseman, M.D. specializes in Emergency Medicine Physician and practices in Lisle, Illinois. Credentials: M.D..
How much does Nancy Eiseman, M.D. prescribe under Medicare Part D? ▼
In 2024, Nancy Eiseman, M.D. wrote 329 Medicare Part D claims totaling $6K in drug costs for 261 beneficiaries.
Where is Nancy Eiseman, M.D. located? ▼
Nancy Eiseman, M.D. is located at 430 WARRENVILLE RD STE 230, Lisle, IL, 60532. Phone: (888) 693-6437.
What is Nancy Eiseman, M.D.'s NPI number? ▼
Nancy Eiseman, M.D.'s National Provider Identifier (NPI) is 1306813753, issued on 03/03/2006.
Does Nancy Eiseman, M.D. prescribe opioids? ▼
Yes, Nancy Eiseman, M.D. had 21 opioid claims in 2024 with an opioid prescribing rate of 6.4%.
How many Emergency Medicine Physician providers are there in the US? ▼
There are 66,293 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 355 Medicare Part D claims per year.
What drugs does Nancy Eiseman, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Nancy Eiseman, M.D.'s most frequently prescribed drugs include Azithromycin, Nitrofurantoin Mono-Macro, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nancy Eiseman, M.D. accept Medicare? ▼
Nancy Eiseman, M.D. appears in CMS Medicare data with 329 Part D claims and 261 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nancy Eiseman, M.D.'s credentials? ▼
Nancy Eiseman, M.D.'s NPI is 1306813753 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 (2024). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
- 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 August 2026 (NPPES) / 2024 (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 August 2026.