NPI registry status
Active
2026 NPPES data Psychiatry Physician NPI 1881153765
Verify on CMS → Theodore Bosi
Psychiatry Physician in Lake Forest, 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
135
Medicare Part D claims · 27 beneficiaries · Psychiatry Physician avg: 1K
MIPS score
94.1/100
▲ 11 pts above national avg 83.1 · Exceptional
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Theodore Bosi reported a CMS MIPS final score of 94.1/100 - above the 83.1 national average - and filed 135 Medicare Part D claims in 2023.
- 94.1/100
- MIPS score · +11 vs avg
- 135
- Part D claims, 2023
- 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.
Theodore Bosi's MIPS score vs every scored U.S. clinician
CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure
94 Top 25% higher than 75% 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 Theodore Bosi sits
This provider among psychiatry physician peers
Across the 4,659 psychiatry physician providers who report both Medicare Part D prescribing and a MIPS quality score, Theodore Bosi writes more Part D claims than 31% of them and scores higher on MIPS quality than 74% - placing this provider in the lower-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 psychiatry physician peer from a representative sample of 60; the gold marker is Theodore Bosi. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
✓
Board certification likely (heuristic, not verified)
Theodore Bosi 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 Theodore Bosi?
High performer (top quartile)Primary specialty
Psychiatry Physician
Medicare Part D claims
135 87% vs specialty avg
MIPS final score
94.1/100 11 pts vs avg
Specialty distribution in Illinois
How Psychiatry Physician compares to other specialties among Illinois providers
Medicare quality performance, MIPS
Theodore Bosi's 2023 MIPS final score plotted against the Psychiatry Physician national average
- MIPS Final Score
- 94.1/100
- vs 83.1 national avg · 2023 performance year
MIPS final score (Psychiatry Physician) - 94.1/100 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).
Theodore Bosi appears in the CMS NPPES registry as a Psychiatry Physician provider at 800 N WESTMORELAND RD STE 201, Lake Forest, IL, 60045, with a listed phone of (847) 535-6489. NPI 1881153765 was issued on 03/19/2019.
Medicare Part D records for calendar year 2023 show 135 prescription claims written by this provider, covering 27 Medicare beneficiaries and totaling roughly $35K in drug spend. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 94.1/100 for the 2023 performance year (Quality 82.6), compared with the national average of 83.1.
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 | 1881153765 |
|---|---|
| Specialty | Psychiatry Physician |
| Gender | Male |
| NPI Issued | 03/19/2019 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
94.1036
Final Score
Avg: 83.1
82.5938
Quality
100
Promoting Interoperability
Reporting: Alternative Payment Model
Hospital and facility affiliations
Facilities where Theodore Bosi 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.
Northwestern Medical Faculty Foundation
Lake Forest, 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 Theodore Bosi. To verify Theodore Bosi'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.
135
Total Claims
$35K
Total Drug Cost
27
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 158
- Total Day Supply
- 4,713
- Generic Drug Cost
- $4K
Patient Demographics
- Average Patient Age
- 57.7 years
- Avg HCC Risk Score
- 1.56
- Gender Split
- 52% female / 48% male
- Age Distribution
- <65: 16, 65-74: N/A, 75-84: N/A, 85+: 0
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Theodore Bosi prescribes most
Top Medicare Part D drugs by claim count, 2023
- Buspirone Hcl
Buspirone Hcl
12 claims
- Hydroxyzine Hcl
Hydroxyzine Hcl
12 claims
- Trazodone Hcl
Trazodone Hcl
11 claims
| Drug | Claims |
|---|---|
| Buspirone Hcl | 12 |
| Hydroxyzine Hcl | 12 |
| Trazodone 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 Theodore Bosi 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
Theodore Bosi's 135 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 Bosi.
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 Theodore Bosi's specialty? ▼
Theodore Bosi specializes in Psychiatry Physician and practices in Lake Forest, Illinois.
How much does Theodore Bosi prescribe under Medicare Part D? ▼
In 2023, Theodore Bosi wrote 135 Medicare Part D claims totaling $35K in drug costs for 27 beneficiaries.
What is Theodore Bosi's Medicare quality score? ▼
Theodore Bosi has a CMS MIPS Final Score of 94.1/100 (Quality: 82.6). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Theodore Bosi located? ▼
Theodore Bosi is located at 800 N WESTMORELAND RD STE 201, Lake Forest, IL, 60045. Phone: (847) 535-6489.
What is Theodore Bosi's NPI number? ▼
Theodore Bosi's National Provider Identifier (NPI) is 1881153765, issued on 03/19/2019.
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 Theodore Bosi prescribe most often? ▼
Based on 2023 Medicare Part D data, Theodore Bosi's most frequently prescribed drugs include Buspirone Hcl, Hydroxyzine Hcl, Trazodone Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Theodore Bosi accept Medicare? ▼
Theodore Bosi appears in CMS Medicare data with 135 Part D claims and 27 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Theodore Bosi's credentials? ▼
Theodore Bosi's NPI is 1881153765. 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.
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.