NPI registry status
Active
2026 NPPES data Psychiatry Physician NPI 1881222651
Verify on CMS → Chelsea Karson
Psychiatry Physician in Lincolnshire, 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 53,171 in Psychiatry 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
254
Medicare Part D claims · 29 beneficiaries · Psychiatry Physician avg: 1K
Generic prescribing
88%
generic claims · 12% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Chelsea Karson filed 254 Medicare Part D claims in 2023 as a Psychiatry Physician in Lincolnshire, Illinois, prescribing 88% generic.
- 254
- Part D claims, 2023
- 88%
- 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.
Chelsea Karson's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
254 49th percentile higher than 49% 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
✓
Board certification likely (heuristic, not verified)
Chelsea Karson 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 Chelsea Karson?
Quality data not reportedPrimary specialty
Psychiatry Physician
Medicare Part D claims
254 76% vs specialty avg
Specialty distribution in Illinois
How Psychiatry 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 Psychiatry 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).
Chelsea Karson appears in the CMS NPPES registry as a Psychiatry Physician provider at 250 PARKWAY DR STE 150, Lincolnshire, IL, 60069, with a listed phone of (833) 351-8255. NPI 1881222651 was issued on 03/29/2020.
Medicare Part D records for calendar year 2023 show 254 prescription claims written by this provider, covering 29 Medicare beneficiaries and totaling roughly $120K in drug spend, split 12% brand-name and 88% generic by claim count.
Psychiatry Physician is a high-volume specialty nationwide, with 53,171 enrolled providers across 56 states and an average of 1,038 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 | 1881222651 |
|---|---|
| Specialty | Psychiatry Physician |
| Gender | Female |
| NPI Issued | 03/29/2020 |
Hospital and facility affiliations
Facilities where Chelsea Karson 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.
Mccd FL Psychiatry Services PA
Lincolnshire, 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 Chelsea Karson. To verify Chelsea Karson'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
Chelsea Karson - brand share 12.0%
Psychiatry Physician average
12% brand-name claims vs 88% generic, on 254 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.
254
Total Claims
$120K
Total Drug Cost
29
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 445
- Total Day Supply
- 12,892
- Brand vs Generic
- 12% brand / 88% generic
- Brand Drug Cost
- $113K
- Generic Drug Cost
- $7K
Patient Demographics
- Average Patient Age
- 65.2 years
- Avg HCC Risk Score
- 1.38
- Gender Split
- 62% female / 38% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Chelsea Karson prescribes most
Top Medicare Part D drugs by claim count, 2023
- Fluoxetine Hcl
Fluoxetine Hcl
24 claims
- Clonazepam
Clonazepam
20 claims
- Lorazepam
Lorazepam
14 claims
- Ingrezza
Ingrezza
13 claims
- Olanzapine
Olanzapine
13 claims
- Pregabalin
Pregabalin
13 claims
- Lithium Carbonate Er
Lithium Carbonate Er
12 claims
- Risperidone
Risperidone
12 claims
| Drug | Claims |
|---|---|
| Fluoxetine Hcl | 24 |
| Clonazepam | 20 |
| Lorazepam | 14 |
| Ingrezza Valbenazine Tosylate | 13 |
| Olanzapine | 13 |
| Pregabalin | 13 |
| Lithium Carbonate Er Lithium Carbonate | 12 |
| Risperidone | 12 |
| Venlafaxine Hcl Er Venlafaxine Hcl | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Psychiatry Physician Overview
How Chelsea Karson fits within the Psychiatry Physician landscape nationally.
53,171
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider
Chelsea Karson's 254 claims are below the specialty average of 1,038.
Nearby Psychiatry Physician Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Karson.
Dr. Alexandra Aaronson
M.D.
Chicago, IL
Dr. Anthony Abadir
MD
Oak Park, IL
Dr. Jeff Abbott
M.D.
Chicago, IL
Kathryn Abbott
Chicago, IL
Dr. Gil Abelita
MD
Bloomington, IL
Compare Psychiatry 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 Psychiatry 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 Chelsea Karson's specialty? ▼
Chelsea Karson specializes in Psychiatry Physician and practices in Lincolnshire, Illinois.
How much does Chelsea Karson prescribe under Medicare Part D? ▼
In 2023, Chelsea Karson wrote 254 Medicare Part D claims totaling $120K in drug costs for 29 beneficiaries.
Where is Chelsea Karson located? ▼
Chelsea Karson is located at 250 PARKWAY DR STE 150, Lincolnshire, IL, 60069. Phone: (833) 351-8255.
What is Chelsea Karson's NPI number? ▼
Chelsea Karson's National Provider Identifier (NPI) is 1881222651, issued on 03/29/2020.
Does Chelsea Karson prescribe more brand-name or generic drugs? ▼
Chelsea Karson's prescribing is 12% brand-name and 88% generic drugs by claim count, with $113K in brand drug costs.
How many Psychiatry Physician providers are there in the US? ▼
There are 53,171 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does Chelsea Karson prescribe most often? ▼
Based on 2023 Medicare Part D data, Chelsea Karson's most frequently prescribed drugs include Fluoxetine Hcl, Clonazepam, Lorazepam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Chelsea Karson accept Medicare? ▼
Chelsea Karson appears in CMS Medicare data with 254 Part D claims and 29 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Chelsea Karson's credentials? ▼
Chelsea Karson's NPI is 1881222651. 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
Compiled from official public sources by the PlainDoctor editorial team.
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.