2026 NPPES data Emergency Medicine Physician NPI 1598709859 MD
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RICHARD LUCAS, MD

Emergency Medicine Physician in WILMINGTON, Delaware. 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
694
Medicare Part D claims · 472 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
41%
generic claims · 59% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

RICHARD LUCAS, MD filed 694 Medicare Part D claims in 2023 as a Emergency Medicine Physician in WILMINGTON, Delaware, prescribing 41% generic.

694
Part D claims, 2023
41%
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 LUCAS, MD's Medicare Part D volume vs every U.S. prescriber

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

694 Top 31% higher than 69% 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%). This entry sits in this band. 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 LUCAS, 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 LUCAS, MD?

Quality data not reported

NPI registry status

Active

Issued 06/16/2006

NPI 1598709859

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

694 97% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Delaware

How Emergency Medicine Physician compares to other specialties among Delaware providers

Delaware providers

Emergency Medicine Physician share within Delaware

1. Emergency Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Emergency Medicine Physician share within Delaware

Specialty board-certification context

Estimated specialty board-certified rate — Emergency Medicine Physician (ABMS / AOA reference)

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

Est. board-certified rate (Emergency Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Emergency Medicine 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 LUCAS, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 7TH & CLAYTON STS, WILMINGTON, DE, 19805, with a listed phone of (302) 421-4333. NPI 1598709859 was issued on 06/16/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LUCAS 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 694 prescription claims written by this provider, covering 472 Medicare beneficiaries and totaling roughly $114K in drug spend, split 59% brand-name and 41% generic by claim count, with an opioid prescribing rate of 8.8%. 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.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

7TH & CLAYTON STS
WILMINGTON, DE 19805

Provider Details

NPI 1598709859
Specialty Emergency Medicine Physician
Credentials MD
Gender Male
NPI Issued 06/16/2006

Brand vs generic prescribing mix · Brand-heavy

RICHARD LUCAS, MD — brand share 59.0%
Specialty average (est.)

59% brand-name claims vs 41% generic, on 694 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.

694
Total Claims
$114K
Total Drug Cost
472
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
697
Total Day Supply
2,966
Brand vs Generic
59% brand / 41% generic
Brand Drug Cost
$112K
Generic Drug Cost
$2K
Opioid Claims
61 (8.8% rate)
Antibiotic Claims
65

Patient Demographics

Average Patient Age
73.1 years
Avg HCC Risk Score
1.18
Gender Split
65% female / 35% male
Age Distribution
<65: 63, 65-74: 176, 75-84: 175, 85+: 58

Top Prescribed Drugs (Medicare Part D)

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

What RICHARD LUCAS, 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
Arexvy
Rsvpref3 Antigen/As01e/Pf
238
Shingrix
Varicella-Zoster Ge/As01b/Pf
105
Tramadol Hcl
56
Methylprednisolone
37
Ibuprofen
28
Cephalexin
22
Azithromycin
16
Dicyclomine Hcl
15
Prednisone
15
Ondansetron Hcl
14

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

Emergency Medicine Physician Overview

How RICHARD LUCAS, MD fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

RICHARD LUCAS, MD's 694 claims are above the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Delaware

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

Compare Emergency Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is RICHARD LUCAS, MD's specialty?
RICHARD LUCAS, MD specializes in Emergency Medicine Physician and practices in WILMINGTON, Delaware. Credentials: MD.
How much does RICHARD LUCAS, MD prescribe under Medicare Part D?
In 2023, RICHARD LUCAS, MD wrote 694 Medicare Part D claims totaling $114K in drug costs for 472 beneficiaries.
Where is RICHARD LUCAS, MD located?
RICHARD LUCAS, MD is located at 7TH & CLAYTON STS, WILMINGTON, DE, 19805. Phone: (302) 421-4333.
What is RICHARD LUCAS, MD's NPI number?
RICHARD LUCAS, MD's National Provider Identifier (NPI) is 1598709859, issued on 06/16/2006.
Does RICHARD LUCAS, MD prescribe more brand-name or generic drugs?
RICHARD LUCAS, MD's prescribing is 59% brand-name and 41% generic drugs by claim count, with $112K in brand drug costs.
Does RICHARD LUCAS, MD prescribe opioids?
Yes, RICHARD LUCAS, MD had 61 opioid claims in 2023 with an opioid prescribing rate of 8.8%.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does RICHARD LUCAS, MD prescribe most often?
Based on 2023 Medicare Part D data, RICHARD LUCAS, MD's most frequently prescribed drugs include Arexvy, Shingrix, Tramadol Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RICHARD LUCAS, MD accept Medicare?
RICHARD LUCAS, MD appears in CMS Medicare data with 694 Part D claims and 472 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RICHARD LUCAS, MD's credentials?
RICHARD LUCAS, MD's NPI is 1598709859 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