2026 NPPES data Internal Medicine Physician NPI 1568494847 MD
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Ronald Fronduti, MD

Internal Medicine Physician in West Chester, Pennsylvania. This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,858 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
5K
Medicare Part D claims · 502 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
92%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Compiled from official public sources by the PlainDoctor editorial team.

What the federal data shows

Ronald Fronduti, MD filed 4,952 Medicare Part D claims in 2023 as a Internal Medicine Physician in West Chester, Pennsylvania, prescribing 92% generic.

5K
Part D claims, 2023
92%
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.

Ronald Fronduti, MD's Medicare Part D volume vs every U.S. prescriber

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

4,952 Top 6% higher than 94% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2K+: 213,991 prescribers (16%). This entry sits in this band. 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)

Ronald Fronduti, 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 Ronald Fronduti, MD?

Quality data not reported

NPI registry status

Active

Issued 07/07/2006

NPI 1568494847

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

4,952 82% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Pennsylvania

How Internal Medicine Physician compares to other specialties among Pennsylvania providers

Pennsylvania providers

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

Student in an Organized Health Care Education/Training Program - 5.6%Student in an Organized Health Care Education/Training Program5.6%Pharmacist - 5%Pharmacist5%Physical Therapist - 4.9%Physical Therapist4.9%Mental Health Counselor - 3.9%Mental Health Counselor3.9%Internal Medicine Physician - 3.3%Internal Medicine Physician3.3%Professional Counselor - 3.2%Professional Counselor3.2%
Largest specialties in Pennsylvania (% 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 Internal Medicine 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).

Ronald Fronduti, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 210 WILLOWBROOK LN, West Chester, PA, 19382, with a listed phone of (610) 696-8900. NPI 1568494847 was issued on 07/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what Fronduti 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 4,952 prescription claims written by this provider, covering 502 Medicare beneficiaries and totaling roughly $277K in drug spend, split 7% brand-name and 92% generic by claim count, with an opioid prescribing rate of 1.8%. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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

210 WILLOWBROOK LN
West Chester, PA 19382

Provider Details

NPI 1568494847
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 07/07/2006

Hospital and facility affiliations

Facilities where Ronald Fronduti, 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.

Clinical Care Associates OF The University OF Pennsylvania Health.
West Chester, PA

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 - Pennsylvania PA-BOM 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 ~45K Pennsylvania medical licensees in 2023 - they are NOT specific to Ronald Fronduti, MD. To verify Ronald Fronduti, MD's current license status, search the PA-BOM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

133
Total board actions, Pennsylvania 2023
Across 129 cases
2.96
Actions per 1,000 licensees
Pennsylvania statewide rate
probation
Most common action type
48 cases

PA-BOM 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 Pennsylvania disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

Ronald Fronduti, MD - brand share 7.0%
Internal Medicine Physician average

7% brand-name claims vs 92% generic, on 4,952 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.

4,952
Total Claims
$277K
Total Drug Cost
502
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
10,378
Total Day Supply
302,880
Brand vs Generic
7% brand / 92% generic
Brand Drug Cost
$187K
Generic Drug Cost
$89K
Opioid Claims
87 (1.8% rate)
Antibiotic Claims
54

Patient Demographics

Average Patient Age
72.6 years
Avg HCC Risk Score
1.07
Gender Split
39% female / 61% male
Age Distribution
<65: 70, 65-74: 214, 75-84: 154, 85+: 64

Top Prescribed Drugs (Medicare Part D)

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

What Ronald Fronduti, 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
Atorvastatin Calcium
540
Amlodipine Besylate
438
Levothyroxine Sodium
197
Losartan Potassium
193
Omeprazole
157
Lisinopril
131
Metoprolol Succinate
127
Metformin Hcl
121
Fluticasone Propionate
108
Lorazepam
108

* 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 Ronald Fronduti, MD fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

Ronald Fronduti, MD's 4,952 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Pennsylvania

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

Compare Internal Medicine 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 Pennsylvania medical board, federal registration is not a license check. Credential verification guide
  • Weigh a second option: compare this provider with a nearby Internal Medicine 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 Ronald Fronduti, MD's specialty?
Ronald Fronduti, MD specializes in Internal Medicine Physician and practices in West Chester, Pennsylvania. Credentials: MD.
How much does Ronald Fronduti, MD prescribe under Medicare Part D?
In 2023, Ronald Fronduti, MD wrote 4,952 Medicare Part D claims totaling $277K in drug costs for 502 beneficiaries.
Where is Ronald Fronduti, MD located?
Ronald Fronduti, MD is located at 210 WILLOWBROOK LN, West Chester, PA, 19382. Phone: (610) 696-8900.
What is Ronald Fronduti, MD's NPI number?
Ronald Fronduti, MD's National Provider Identifier (NPI) is 1568494847, issued on 07/07/2006.
Does Ronald Fronduti, MD prescribe more brand-name or generic drugs?
Ronald Fronduti, MD's prescribing is 7% brand-name and 92% generic drugs by claim count, with $187K in brand drug costs.
Does Ronald Fronduti, MD prescribe opioids?
Yes, Ronald Fronduti, MD had 87 opioid claims in 2023 with an opioid prescribing rate of 1.8%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does Ronald Fronduti, MD prescribe most often?
Based on 2023 Medicare Part D data, Ronald Fronduti, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Ronald Fronduti, MD accept Medicare?
Ronald Fronduti, MD appears in CMS Medicare data with 4,952 Part D claims and 502 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Ronald Fronduti, MD's credentials?
Ronald Fronduti, MD's NPI is 1568494847 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.