2026 NPPES data Specialist NPI 1992767404 M.D.
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WILLIAM LONG, M.D.

Specialist in ALEXANDRIA, Louisiana. 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
426
Medicare Part D claims · 163 beneficiaries · Specialist avg: 1K
Generic prescribing
57%
generic claims · 43% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
80.7229/100
▼ 2 pts below national avg 83.1 · [object Object]
Industry payments
$15.1K
48 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

WILLIAM LONG, M.D. reported a CMS MIPS final score of 80.7229/100 — below the 83.1 national average — and filed 426 Medicare Part D claims in 2023.

80.7229/100
MIPS score · -2 vs avg
426
Part D claims, 2023
57%
generic prescribing
$15.1K
industry payments (Sunshine Act)

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.

WILLIAM LONG, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

81 33rd percentile higher than 33% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). This entry sits in this band. 90–100: 189,403 scored providers (40%). Above this entry. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

What does the federal data show about WILLIAM LONG, M.D.?

Near national average

NPI registry status

Active

Issued 04/03/2006

NPI 1992767404

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

426 71% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

MIPS final score

80.7229/100 2.3770999999999987% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Louisiana

How Specialist compares to other specialties among Louisiana providers

Louisiana providers

Specialist share within Louisiana

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Louisiana

Medicare quality performance — MIPS

WILLIAM LONG, M.D.'s 2023 MIPS final score plotted against the Specialist national average

Near national average
MIPS Final Score
80.7229/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Specialist) — 80.7229/100 vs national avg 83.1

0%100%National avg83%80.7%
MIPS final score (Specialist) — 80.7229/100 vs national avg 83.1

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).

WILLIAM LONG, M.D. appears in the CMS NPPES registry as a Specialist provider holding M.D. credentials at 3704 NORTH BLVD, ALEXANDRIA, LA, 71301, with a listed phone of (318) 442-8399. NPI 1992767404 was issued on 04/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LONG 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 426 prescription claims written by this provider, covering 163 Medicare beneficiaries and totaling roughly $190K in drug spend, split 43% brand-name and 57% generic by claim count, with an opioid prescribing rate of 3.1%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 80.7229/100 for the 2023 performance year (Quality 75), compared with the national average of 83.1.

Specialist is a high-volume specialty nationwide, with 69,658 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

3704 NORTH BLVD
ALEXANDRIA, LA 71301

Provider Details

NPI 1992767404
Specialty Specialist
Credentials M.D.
Gender Male
NPI Issued 04/03/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

80.7229
Final Score
Avg: 83.1
75
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where WILLIAM LONG, M.D. 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.

INNOVATIVE VASCULAR INSTITUTE PLLC
SAN ANTONIO, TX
RFC RADIOLOGY ASSOCIATES LLC
MCALLEN, TX

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 WILLIAM LONG, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$15.1K

Largest payer

AngioDynamics, Inc.

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 · Above average

WILLIAM LONG, M.D. — brand share 43.0%
Specialty average (est.)

43% brand-name claims vs 57% generic, on 426 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.

426
Total Claims
$190K
Total Drug Cost
163
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
961
Total Day Supply
28,379
Brand vs Generic
43% brand / 57% generic
Brand Drug Cost
$187K
Generic Drug Cost
$4K
Opioid Claims
13 (3.1% rate)

Patient Demographics

Average Patient Age
72.5 years
Avg HCC Risk Score
2.71
Gender Split
50% female / 50% male
Age Distribution
<65: 20, 65-74: 77, 75-84: 49, 85+: 17

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Clopidogrel
Clopidogrel Bisulfate
226
Xarelto
Rivaroxaban
180

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

Specialist Overview

How WILLIAM LONG, M.D. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

WILLIAM LONG, M.D.'s 426 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Louisiana

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is WILLIAM LONG, M.D.'s specialty?
WILLIAM LONG, M.D. specializes in Specialist and practices in ALEXANDRIA, Louisiana. Credentials: M.D..
How much does WILLIAM LONG, M.D. prescribe under Medicare Part D?
In 2023, WILLIAM LONG, M.D. wrote 426 Medicare Part D claims totaling $190K in drug costs for 163 beneficiaries.
What is WILLIAM LONG, M.D.'s Medicare quality score?
WILLIAM LONG, M.D. has a CMS MIPS Final Score of 80.7229/100 (Quality: 75). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is WILLIAM LONG, M.D. located?
WILLIAM LONG, M.D. is located at 3704 NORTH BLVD, ALEXANDRIA, LA, 71301. Phone: (318) 442-8399.
What is WILLIAM LONG, M.D.'s NPI number?
WILLIAM LONG, M.D.'s National Provider Identifier (NPI) is 1992767404, issued on 04/03/2006.
Does WILLIAM LONG, M.D. prescribe more brand-name or generic drugs?
WILLIAM LONG, M.D.'s prescribing is 43% brand-name and 57% generic drugs by claim count, with $187K in brand drug costs.
Does WILLIAM LONG, M.D. prescribe opioids?
Yes, WILLIAM LONG, M.D. had 13 opioid claims in 2023 with an opioid prescribing rate of 3.1%.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does WILLIAM LONG, M.D. prescribe most often?
Based on 2023 Medicare Part D data, WILLIAM LONG, M.D.'s most frequently prescribed drugs include Clopidogrel, Xarelto. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does WILLIAM LONG, M.D. accept Medicare?
WILLIAM LONG, M.D. appears in CMS Medicare data with 426 Part D claims and 163 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify WILLIAM LONG, M.D.'s credentials?
WILLIAM LONG, M.D.'s NPI is 1992767404 with credentials M.D.. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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