NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1134656853 DO
Verify on CMS → Derrick Ferguson, DO
Internal Medicine Physician in Bloomington, Indiana.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 174,792 in Internal 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
1K
Medicare Part D claims · 256 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
0%
generic claims · 57% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$151.18
2 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Derrick Ferguson, DO filed 1,486 Medicare Part D claims in 2024 as an Internal Medicine Physician in Bloomington, Indiana, prescribing 0% generic.
- 1K
- Part D claims, 2024
- 0%
- generic prescribing
- Likely
- board-certified (heuristic)
- ≥80th
- 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 Derrick Ferguson, DO
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 1134656853), first enumerated 05/12/2017.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,486 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
2 CMS Care Compare hospital affiliations on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- Reported
Industry payment transparency
$151.18 in reported industry payments (2 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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.
Compare Ferguson with other Internal Medicine Physician providers
Same primary specialty, same federal CMS NPPES roster.
All 49 Internal Medicine Physician providers in Bloomington, IN →
Also enrolled in Indiana
- Dr. Sami Aasar, MD Fishers, IN
- Dr. Paolo Abada, MD Indianapolis, IN
- Dr. Asad Abbas, DO Richmond, IN
- Dr. Faheem Abbasi, MD Indianapolis, IN
- Dr. Hayder Abbood, MD Indianapolis, IN
- Dr. Simon Abdallah, MD Richmond, IN
Other specialties in Bloomington: Behavior Technician (694) · Clinical Social Worker (177) · Mental Health Counselor (174) · Physical Therapist (122)
CMS NPPES provider registry desk
NPI 1134656853 · Internal Medicine Physician
NPI-10 · ENUM-RECENT · TAX-MEGA · RX-MID · BOOK-LIGHT · PHOTO-ENUM
- NPI-10 1134656853
- ENUM-RECENT 2017
- TAX-MEGA 175K Internal Medicine
- RX-MID 1,486
- BOOK-LIGHT 2,565 in Indiana
- PHOTO-ENUM Waqas Ullah, M.D. · 2017
Derrick Ferguson, DO's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
1,486 ≥ 80th percentile 80% 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)
Derrick Ferguson, DO practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations - 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 Derrick Ferguson, DO?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
1,486 47% vs specialty avg
Specialty distribution in Indiana
How Internal Medicine Physician compares to other specialties among Indiana 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 Internal 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 | 1134656853 |
|---|---|
| Specialty | Internal Medicine Physician |
| Credentials | DO |
| Gender | Male |
| NPI Issued | 05/12/2017 |
Hospital and facility affiliations
Facilities where Derrick Ferguson, DO 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.
Indiana University Health Southern Indiana Physicians LLC
Bloomington, IN
IU Health Medical Group LLC
Indianapolis, IN
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 Derrick Ferguson, DO. Source: openpaymentsdata.cms.gov.
Total received
$151
Largest payer
GlaxoSmithKline, LLC.
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.
Brand vs generic prescribing mix · Brand-heavy
Derrick Ferguson, DO - brand share 57.0%
Internal Medicine Physician average
57% brand-name claims vs 0% generic, on 1,486 2024 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 2024.
1,486
Total Claims
$1.1M
Total Drug Cost
256
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 2,246.133
- Total Day Supply
- 63,848
- Brand vs Generic
- 57% brand / 0% generic
- Brand Drug Cost
- $1.1M
- Antibiotic Claims
- 81
Patient Demographics
- Average Patient Age
- 71.2 years
- Avg HCC Risk Score
- 2.00
- Gender Split
- 57% female / 43% male
- Age Distribution
- <65: 45, 65-74: 118, 75-84: 81, 85+: 12
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What Derrick Ferguson, DO prescribes most
Top Medicare Part D drugs by claim count, 2024
- Trelegy Ellipta
Trelegy Ellipta
274 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
157 claims
- Montelukast Sodium
Montelukast Sodium
136 claims
- Roflumilast
Roflumilast
118 claims
- Spiriva Respimat 87
Spiriva Respimat
87 claims
- Prednisone 80
Prednisone
80 claims
- Azithromycin 53
Azithromycin
53 claims
- Breo Ellipta 48
Breo Ellipta
48 claims
| Drug | Claims |
|---|---|
| Trelegy Ellipta Fluticasone/Umeclidin/Vilanter | 274 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 157 |
| Montelukast Sodium | 136 |
| Roflumilast | 118 |
| Spiriva Respimat Tiotropium Bromide | 87 |
| Prednisone | 80 |
| Azithromycin | 53 |
| Breo Ellipta Fluticasone/Vilanterol | 48 |
| Symbicort Budesonide/Formoterol Fumarate | 41 |
| Varenicline Tartrate | 39 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Derrick Ferguson, DO fits within the Internal Medicine Physician landscape nationally.
174,792
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,785
Avg Claims per Provider
Derrick Ferguson, DO's 1,486 claims are below the specialty average of 2,785.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Ferguson, both outside Indiana so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2017)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in Indiana
Other clinicians with the same primary specialty enrolled in Indiana, drawn from the same CMS NPPES roster as Ferguson.
One of 2,565 Internal Medicine Physician providers enrolled in Indiana, 11 are shown on this page.
Dr. Ahmed Abdel Rahman
MD
Indianapolis, IN
Dr. Ashraf Abdelhafez
MD
Greenwood, IN
Eiman Abdelrahman
Indianapolis, IN
Nabil Abdo
Munster, IN
Dr. Nicholas Abel
MD
Mishawaka, IN
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Derrick Ferguson, DO's specialty? ▼
Derrick Ferguson, DO specializes in Internal Medicine Physician and practices in Bloomington, Indiana. Credentials: DO.
How much does Derrick Ferguson, DO prescribe under Medicare Part D? ▼
In 2024, Derrick Ferguson, DO wrote 1,486 Medicare Part D claims totaling $1.1M in drug costs for 256 beneficiaries.
Where is Derrick Ferguson, DO located? ▼
Derrick Ferguson, DO is located at 2651 E DISCOVERY PKWY, Bloomington, IN, 47408. Phone: (812) 331-3400.
What is Derrick Ferguson, DO's NPI number? ▼
Derrick Ferguson, DO's National Provider Identifier (NPI) is 1134656853, issued on 05/12/2017.
Does Derrick Ferguson, DO prescribe more brand-name or generic drugs? ▼
Derrick Ferguson, DO's prescribing is 57% brand-name and 0% generic drugs by claim count, with $1.1M in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 174,792 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,785 Medicare Part D claims per year.
What drugs does Derrick Ferguson, DO prescribe most often? ▼
Based on 2024 Medicare Part D data, Derrick Ferguson, DO's most frequently prescribed drugs include Trelegy Ellipta, Albuterol Sulfate Hfa, Montelukast Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Derrick Ferguson, DO accept Medicare? ▼
Derrick Ferguson, DO appears in CMS Medicare data with 1,486 Part D claims and 256 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Derrick Ferguson, DO's credentials? ▼
Derrick Ferguson, DO's NPI is 1134656853 with credentials DO. 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.