NPI registry status
Active
2026 NPPES data Physician Assistant NPI 1881935815 PA
Verify on CMS → Lauren Michalak, PA
Physician Assistant 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 150,974 in Physician Assistant, 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
181
Medicare Part D claims · 42 beneficiaries · Physician Assistant avg: 790
Industry payments
$47.31
3 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Lauren Michalak, PA filed 181 Medicare Part D claims in 2023 as a Physician Assistant in Chicago, Illinois.
- 181
- Part D claims, 2023
- $47.31
- industry payments (Sunshine Act)
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.
Lauren Michalak, PA's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
181 35th percentile higher than 35% of 1,370,886 prescribers
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.
Source CMS Medicare Part D Prescriber Public Use File · 2023
What does the federal data show about Lauren Michalak, PA?
Quality data not reportedPrimary specialty
Physician Assistant
Medicare Part D claims
181 77% vs specialty avg
Specialty distribution in Illinois
How Physician Assistant 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 Physician Assistant. 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).
Lauren Michalak, PA appears in the CMS NPPES registry as a Physician Assistant provider holding PA credentials at 1725 W HARRISON ST, Chicago, IL, 60612, with a listed phone of (312) 563-2762. NPI 1881935815 was issued on 03/15/2013.
Medicare Part D records for calendar year 2023 show 181 prescription claims written by this provider, covering 42 Medicare beneficiaries and totaling roughly $23K in drug spend, with an opioid prescribing rate of 9.4%.
Physician Assistant is a high-volume specialty nationwide, with 150,974 enrolled providers across 56 states and an average of 790 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 | 1881935815 |
|---|---|
| Specialty | Physician Assistant |
| Credentials | PA |
| Gender | Female |
| NPI Issued | 03/15/2013 |
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 Lauren Michalak, PA. Source: openpaymentsdata.cms.gov.
Total received
$47
Largest payer
Abbott Laboratories
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.
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 Lauren Michalak, PA. To verify Lauren Michalak, PA'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 2023.
181
Total Claims
$23K
Total Drug Cost
42
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 365
- Total Day Supply
- 9,934
- Generic Drug Cost
- $3K
- Opioid Claims
- 17 (9.4% rate)
Patient Demographics
- Average Patient Age
- 69.2 years
- Avg HCC Risk Score
- 3.10
- Gender Split
- 33% female / 67% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Lauren Michalak, PA prescribes most
Top Medicare Part D drugs by claim count, 2023
- Atorvastatin Calcium
Atorvastatin Calcium
26 claims
- Metoprolol Succinate
Metoprolol Succinate
17 claims
- Furosemide
Furosemide
16 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
11 claims
- Potassium Chloride
Potassium Chloride
11 claims
| Drug | Claims |
|---|---|
| Atorvastatin Calcium | 26 |
| Metoprolol Succinate | 17 |
| Furosemide | 16 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 11 |
| Potassium Chloride | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Physician Assistant Overview
How Lauren Michalak, PA fits within the Physician Assistant landscape nationally.
150,974
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider
Lauren Michalak, PA's 181 claims are below the specialty average of 790.
Nearby Physician Assistant Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Michalak.
Dr. Brooke Aarhus
PA-C
Park Ridge, IL
Dr. Traci Aaron
PA-C
Chicago, IL
Dr. Sana Abbasi
PA
Carol Stream, IL
Dr. Susan Abbinanti
PA-C
Elk Grove Village, IL
Dr. Katheryn Abbott
PA
Schaumburg, IL
Compare Physician Assistant 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 Physician Assistant 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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Medical Specialties Explained
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Frequently Asked Questions
What is Lauren Michalak, PA's specialty? ▼
Lauren Michalak, PA specializes in Physician Assistant and practices in Chicago, Illinois. Credentials: PA.
How much does Lauren Michalak, PA prescribe under Medicare Part D? ▼
In 2023, Lauren Michalak, PA wrote 181 Medicare Part D claims totaling $23K in drug costs for 42 beneficiaries.
Where is Lauren Michalak, PA located? ▼
Lauren Michalak, PA is located at 1725 W HARRISON ST, Chicago, IL, 60612. Phone: (312) 563-2762.
What is Lauren Michalak, PA's NPI number? ▼
Lauren Michalak, PA's National Provider Identifier (NPI) is 1881935815, issued on 03/15/2013.
Does Lauren Michalak, PA prescribe opioids? ▼
Yes, Lauren Michalak, PA had 17 opioid claims in 2023 with an opioid prescribing rate of 9.4%.
How many Physician Assistant providers are there in the US? ▼
There are 150,974 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
What drugs does Lauren Michalak, PA prescribe most often? ▼
Based on 2023 Medicare Part D data, Lauren Michalak, PA's most frequently prescribed drugs include Atorvastatin Calcium, Metoprolol Succinate, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lauren Michalak, PA accept Medicare? ▼
Lauren Michalak, PA appears in CMS Medicare data with 181 Part D claims and 42 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lauren Michalak, PA's credentials? ▼
Lauren Michalak, PA's NPI is 1881935815 with credentials PA. 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.
- 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.