2026 NPPES data Diagnostic Radiology Physician NPI 1144537051 MD
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Rotimi Johnson, MD

Diagnostic Radiology Physician in Elgin, 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 39,474 in Diagnostic Radiology 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
131
Medicare Part D claims · 58 beneficiaries · Diagnostic Radiology Physician avg: 63
Industry payments
$66.8K
73 payments · CMS Open Payments (Sunshine Act)
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Rotimi Johnson, MD filed 131 Medicare Part D claims in 2023 as a Diagnostic Radiology Physician in Elgin, Illinois.

131
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.

Rotimi Johnson, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023, across all CMS prescribers nationally

131 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2K+: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

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)

Rotimi Johnson, MD 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 Rotimi Johnson, MD?

Quality data not reported

NPI registry status

Active

Issued 09/13/2010

NPI 1144537051

Primary specialty

Diagnostic Radiology Physician

Mid-sized

39,474 US NPIs in this specialty

Medicare Part D claims

131 108% vs specialty avg

2023 prescription claims

Specialty avg: 63

Specialty distribution in Illinois

How Diagnostic Radiology Physician compares to other specialties among Illinois providers

Illinois providers

Largest specialties in Illinois (% of in-state providers)

Clinical Social Worker - 5.2%Clinical Social Worker5.2%Physical Therapist - 5%Physical Therapist5%Mental Health Counselor - 4.5%Mental Health Counselor4.5%Speech-Language Pathologist - 4.2%Speech-Language Pathologist4.2%Student in an Organized Health Care Education/Training Program - 4.2%Student in an Organized Health Care Education/Training Program4.2%Pharmacist - 4.1%Pharmacist4.1%Diagnostic Radiology Physician - 0.7%Diagnostic Radiology Physician0.7%
Largest specialties in Illinois (% of in-state 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 Diagnostic Radiology Physician. Verify directly:

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).

Rotimi Johnson, MD appears in the CMS NPPES registry as a Diagnostic Radiology Physician provider holding MD credentials at 2385 BOWES RD STE 350, Elgin, IL, 60123, with a listed phone of (847) 429-2091. NPI 1144537051 was issued on 09/13/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Johnson most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 131 prescription claims written by this provider, covering 58 Medicare beneficiaries and totaling roughly $4K in drug spend. These figures capture only Medicare Part D, commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Diagnostic Radiology Physician is a mid-sized specialty nationwide, with 39,474 enrolled providers across 56 states and an average of 63 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

2385 BOWES RD STE 350
Elgin, IL 60123

Provider Details

NPI 1144537051
Specialty Diagnostic Radiology Physician
Credentials MD
Gender Male
NPI Issued 09/13/2010

Hospital and facility affiliations

Facilities where Rotimi Johnson, MD 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.

Rockford Health Physicians
Rockford, 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 Rotimi Johnson, MD. Source: openpaymentsdata.cms.gov.

Total received

$66.8K

Largest payer

AngioDynamics, Inc.

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 Rotimi Johnson, MD. To verify Rotimi Johnson, MD'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.

131
Total Claims
$4K
Total Drug Cost
58
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
189
Total Day Supply
3,738
Generic Drug Cost
$2K
Antibiotic Claims
49

Patient Demographics

Average Patient Age
74.0 years
Avg HCC Risk Score
2.90
Gender Split
57% female / 43% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What Rotimi Johnson, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Clopidogrel
Clopidogrel Bisulfate
28
Cephalexin
18
Clindamycin Hcl
17
Methylprednisolone
13

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Diagnostic Radiology Physician Overview

How Rotimi Johnson, MD fits within the Diagnostic Radiology Physician landscape nationally.

39,474
Diagnostic Radiology Physician Providers in US
56
States with Diagnostic Radiology Physician
63
Avg Claims per Provider

Rotimi Johnson, MD's 131 claims are above the specialty average of 63.

Nearby Diagnostic Radiology Physician Providers in Illinois

Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Johnson.

Compare Diagnostic Radiology 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 Diagnostic Radiology 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.

Frequently Asked Questions

What is Rotimi Johnson, MD's specialty?
Rotimi Johnson, MD specializes in Diagnostic Radiology Physician and practices in Elgin, Illinois. Credentials: MD.
How much does Rotimi Johnson, MD prescribe under Medicare Part D?
In 2023, Rotimi Johnson, MD wrote 131 Medicare Part D claims totaling $4K in drug costs for 58 beneficiaries.
Where is Rotimi Johnson, MD located?
Rotimi Johnson, MD is located at 2385 BOWES RD STE 350, Elgin, IL, 60123. Phone: (847) 429-2091.
What is Rotimi Johnson, MD's NPI number?
Rotimi Johnson, MD's National Provider Identifier (NPI) is 1144537051, issued on 09/13/2010.
How many Diagnostic Radiology Physician providers are there in the US?
There are 39,474 Diagnostic Radiology Physician providers across 56 states in the US. The average Diagnostic Radiology Physician provider writes 63 Medicare Part D claims per year.
What drugs does Rotimi Johnson, MD prescribe most often?
Based on 2023 Medicare Part D data, Rotimi Johnson, MD's most frequently prescribed drugs include Clopidogrel, Cephalexin, Clindamycin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Rotimi Johnson, MD accept Medicare?
Rotimi Johnson, MD appears in CMS Medicare data with 131 Part D claims and 58 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Rotimi Johnson, MD's credentials?
Rotimi Johnson, MD's NPI is 1144537051 with credentials MD. 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

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.