NPI registry status
Active
2026 NPPES data Specialist NPI 1750436952 MD
Verify on CMS → Richard Ferolo, MD
Specialist in Lake Barrington, 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 69,608 in Specialist, 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
3K
Medicare Part D claims · 288 beneficiaries · Specialist avg: 1K
Generic prescribing
88%
generic claims · 10% 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
Richard Ferolo, MD filed 3,068 Medicare Part D claims in 2023 as a Specialist in Lake Barrington, Illinois, prescribing 88% generic.
- 3K
- Part D claims, 2023
- 88%
- generic prescribing
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.
Richard Ferolo, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,068 Top 11% higher than 89% 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 Richard Ferolo, MD?
Quality data not reportedPrimary specialty
Specialist
Medicare Part D claims
3,068 108% vs specialty avg
Specialty distribution in Illinois
How Specialist 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 Specialist. 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).
Richard Ferolo, MD appears in the CMS NPPES registry as a Specialist provider holding MD credentials at 22285 N PEPPER RD STE 211, Lake Barrington, IL, 60010, with a listed phone of (847) 277-9700. NPI 1750436952 was issued on 01/25/2007.
Medicare Part D records for calendar year 2023 show 3,068 prescription claims written by this provider, covering 288 Medicare beneficiaries and totaling roughly $321K in drug spend, split 10% brand-name and 88% generic by claim count, with an opioid prescribing rate of 3.7%.
Specialist is a high-volume specialty nationwide, with 69,608 enrolled providers across 55 states and an average of 1,474 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 | 1750436952 |
|---|---|
| Specialty | Specialist |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 01/25/2007 |
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 Richard Ferolo, MD. To verify Richard Ferolo, 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.
Brand vs generic prescribing mix · Typical
Richard Ferolo, MD - brand share 10.0%
Specialist average
10% brand-name claims vs 88% generic, on 3,068 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.
3,068
Total Claims
$321K
Total Drug Cost
288
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 7,464
- Total Day Supply
- 218,152
- Brand vs Generic
- 10% brand / 88% generic
- Brand Drug Cost
- $239K
- Generic Drug Cost
- $77K
- Opioid Claims
- 115 (3.7% rate)
- Antibiotic Claims
- 55
Patient Demographics
- Average Patient Age
- 74.6 years
- Avg HCC Risk Score
- 1.28
- Gender Split
- 38% female / 63% male
- Age Distribution
- <65: 11, 65-74: 141, 75-84: 102, 85+: 34
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Richard Ferolo, MD prescribes most
Top Medicare Part D drugs by claim count, 2023
- Lisinopril
Lisinopril
284 claims
- Atorvastatin Calcium
Atorvastatin Calcium
217 claims
- Metoprolol Succinate
Metoprolol Succinate
142 claims
- Hydrochlorothiazide
Hydrochlorothiazide
129 claims
- Metformin Hcl
Metformin Hcl
120 claims
- Levothyroxine Sodium
Levothyroxine Sodium
114 claims
- Simvastatin 84
Simvastatin
84 claims
- Amlodipine Besylate 83
Amlodipine Besylate
83 claims
| Drug | Claims |
|---|---|
| Lisinopril | 284 |
| Atorvastatin Calcium | 217 |
| Metoprolol Succinate | 142 |
| Hydrochlorothiazide | 129 |
| Metformin Hcl | 120 |
| Levothyroxine Sodium | 114 |
| Simvastatin | 84 |
| Amlodipine Besylate | 83 |
| Losartan Potassium | 56 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 54 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Specialist Overview
How Richard Ferolo, MD fits within the Specialist landscape nationally.
69,608
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider
Richard Ferolo, MD's 3,068 claims are above the specialty average of 1,474.
Nearby Specialist Providers in Illinois
Other clinicians with the same primary specialty enrolled in Illinois, drawn from the same CMS NPPES roster as Ferolo.
Dr. Sandra . Drewes
MD
Winfield, IL
Laketa Aaron
Bellwood, IL
Dr. Carrie Abbott-Walk
M.ED, DT
Dekalb, IL
Dr. Suhair Abdel-Jalil
MD
Evanston, IL
Dr. Babak Abdollahshamshirsaz
M.D.
Chicago, IL
Compare Specialist 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 Specialist 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 Richard Ferolo, MD's specialty? ▼
Richard Ferolo, MD specializes in Specialist and practices in Lake Barrington, Illinois. Credentials: MD.
How much does Richard Ferolo, MD prescribe under Medicare Part D? ▼
In 2023, Richard Ferolo, MD wrote 3,068 Medicare Part D claims totaling $321K in drug costs for 288 beneficiaries.
Where is Richard Ferolo, MD located? ▼
Richard Ferolo, MD is located at 22285 N PEPPER RD STE 211, Lake Barrington, IL, 60010. Phone: (847) 277-9700.
What is Richard Ferolo, MD's NPI number? ▼
Richard Ferolo, MD's National Provider Identifier (NPI) is 1750436952, issued on 01/25/2007.
Does Richard Ferolo, MD prescribe more brand-name or generic drugs? ▼
Richard Ferolo, MD's prescribing is 10% brand-name and 88% generic drugs by claim count, with $239K in brand drug costs.
Does Richard Ferolo, MD prescribe opioids? ▼
Yes, Richard Ferolo, MD had 115 opioid claims in 2023 with an opioid prescribing rate of 3.7%.
How many Specialist providers are there in the US? ▼
There are 69,608 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does Richard Ferolo, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, Richard Ferolo, MD's most frequently prescribed drugs include Lisinopril, Atorvastatin Calcium, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Richard Ferolo, MD accept Medicare? ▼
Richard Ferolo, MD appears in CMS Medicare data with 3,068 Part D claims and 288 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Richard Ferolo, MD's credentials? ▼
Richard Ferolo, MD's NPI is 1750436952 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
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.