2026 NPPES data Diagnostic Radiology Physician NPI 1851365969 MD
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RICHARD LISI, MD

Diagnostic Radiology Physician in NORWALK, Connecticut. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
32
Medicare Part D claims · Diagnostic Radiology Physician avg: 63

What the federal data shows

RICHARD LISI, MD filed 32 Medicare Part D claims in 2023 as a Diagnostic Radiology Physician in NORWALK, Connecticut.

32
Part D claims, 2023

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

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

32 0th percentile higher than 0% 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. 2,000–2,200: 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-eligible specialty (heuristic — not verified)

RICHARD LISI, MD practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about RICHARD LISI, MD?

Quality data not reported

NPI registry status

Active

Issued 02/15/2006

NPI 1851365969

Primary specialty

Diagnostic Radiology Physician

Mid-sized

39,474 US NPIs in this specialty

Medicare Part D claims

32 49% vs specialty avg

2023 prescription claims

Specialty avg: 63

Specialty distribution in Connecticut

How Diagnostic Radiology Physician compares to other specialties among Connecticut providers

Connecticut providers

Diagnostic Radiology Physician share within Connecticut

1. Diagnostic Radiology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Diagnostic Radiology Physician share within Connecticut

Specialty board-certification context

Estimated specialty board-certified rate — Diagnostic Radiology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Diagnostic Radiology Physician ABMS/AOA estimate

Est. board-certified rate (Diagnostic Radiology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Diagnostic Radiology Physician) — ABMS / AOA estimate

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 LISI, MD appears in the CMS NPPES registry as a Diagnostic Radiology Physician provider holding MD credentials at 148 EAST AVE, NORWALK, CT, 06851, with a listed phone of (203) 852-9913. NPI 1851365969 was issued on 02/15/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LISI 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 32 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $547 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

148 EAST AVE
NORWALK, CT 06851

Provider Details

NPI 1851365969
Specialty Diagnostic Radiology Physician
Credentials MD
Gender Male
NPI Issued 02/15/2006

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

32
Total Claims
$547
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
37
Total Day Supply
1,043
Generic Drug Cost
$299

Patient Demographics

Average Patient Age
84.0 years
Avg HCC Risk Score
1.02

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Atorvastatin Calcium
12

* 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 RICHARD LISI, 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

RICHARD LISI, MD's 32 claims are below the specialty average of 63.

Nearby Diagnostic Radiology Physician Providers in Connecticut

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

Compare Diagnostic Radiology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RICHARD LISI, MD's specialty?
RICHARD LISI, MD specializes in Diagnostic Radiology Physician and practices in NORWALK, Connecticut. Credentials: MD.
How much does RICHARD LISI, MD prescribe under Medicare Part D?
In 2023, RICHARD LISI, MD wrote 32 Medicare Part D claims totaling $547 in drug costs for N/A beneficiaries.
Where is RICHARD LISI, MD located?
RICHARD LISI, MD is located at 148 EAST AVE, NORWALK, CT, 06851. Phone: (203) 852-9913.
What is RICHARD LISI, MD's NPI number?
RICHARD LISI, MD's National Provider Identifier (NPI) is 1851365969, issued on 02/15/2006.
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 RICHARD LISI, MD prescribe most often?
Based on 2023 Medicare Part D data, RICHARD LISI, MD's most frequently prescribed drugs include Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RICHARD LISI, MD accept Medicare?
RICHARD LISI, MD appears in CMS Medicare data with 32 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RICHARD LISI, MD's credentials?
RICHARD LISI, MD's NPI is 1851365969 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