2026 NPPES data Neurology with Special Qualifications in Child Neurology Physician NPI 1205827516 M.D.
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LYNDON BARNWELL, M.D.

Neurology with Special Qualifications in Child Neurology Physician in LAKE JACKSON, Texas. 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
4K
Medicare Part D claims · 658 beneficiaries · Neurology with Special Qualifications in Child Neurology Physician avg: 359
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
59.9405/100
▼ 23 pts below national avg 83.1 · [object Object]
Industry payments
$1.9K
85 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: LYNDON BARNWELL, M.D. is a Neurology with Special Qualifications in Child Neurology Physician ([object Object]) practicing in LAKE JACKSON, Texas with a Medicare Part D prescribing footprint of 4K claims across 658 beneficiaries — 9% brand-name prescribing . Their CMS MIPS Final Score of 59.9405/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $1.9K across 85 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: LYNDON BARNWELL, M.D. reported a CMS MIPS final score of 59.9405 out of 100, below the 83.1 national average, and filed 3,976 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

LYNDON BARNWELL, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

LYNDON BARNWELL, M.D. at a glance

Below national average

NPI registry status

Active

Issued 11/04/2005

NPI 1205827516

Primary specialty

Neurology with Special Qualifications in Child Neurology Physician

Niche

1,803 US NPIs in this specialty

Medicare Part D claims

3,976 1008% vs specialty avg

2023 prescription claims

Specialty avg: 359

MIPS final score

59.9405/100 23.159499999999994% pts

Mid-tier band

vs 83.1 national avg

Specialty distribution in Texas

How Neurology with Special Qualifications in Child Neurology Physician compares to other specialties among Texas providers

Texas providers

Neurology with Special Qualifications in Child Neurology Physician share within Texas

1. Neurology with Special Qualifications in Child Neurology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Neurology with Special Qualifications in Child Neurology Physician share within Texas

Medicare quality performance — MIPS

LYNDON BARNWELL, M.D.'s 2023 MIPS final score plotted against the Neurology with Special Qualifications in Child Neurology Physician national average

Below national average
MIPS Final Score
59.9405/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Neurology with Special Qualifications in Child Neurology Physician) — 59.9405/100 vs national avg 83.1

0%100%National avg83%59.9%
MIPS final score (Neurology with Special Qualifications in Child Neurology Physician) — 59.9405/100 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).

LYNDON BARNWELL, M.D. is a Neurology with Special Qualifications in Child Neurology Physician provider practicing in LAKE JACKSON, Texas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1205827516. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

LYNDON BARNWELL, M.D. appears in the CMS NPPES registry as a Neurology with Special Qualifications in Child Neurology Physician provider holding M.D. credentials at 201 OAK DR S, LAKE JACKSON, TX, 77566, with a listed phone of (979) 480-0990. NPI 1205827516 was issued on 11/04/2005. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARNWELL 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 3,976 prescription claims written by this provider, covering 658 Medicare beneficiaries and totaling roughly $788K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 0.5%. 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 59.9405/100 for the 2023 performance year (Quality 30, Cost 42.648), compared with the national average of 83.1.

Neurology with Special Qualifications in Child Neurology Physician is a narrow specialty nationwide, with 1,803 enrolled providers across 51 states and an average of 359 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

201 OAK DR S
LAKE JACKSON, TX 77566

Provider Details

NPI 1205827516
Specialty Neurology with Special Qualifications in Child Neurology Physician
Credentials M.D.
Gender Male
NPI Issued 11/04/2005

CMS Quality Score (MIPS)

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

59.9405
Final Score
Avg: 83.1
30
Quality
42.648
Cost
87
Promoting Interoperability

Reporting: Individual

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 LYNDON BARNWELL, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.9K

Largest payer

ABBVIE 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.

License & disciplinary context — Texas TMB 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 ~77K Texas medical licensees in 2023 — they are NOT specific to LYNDON BARNWELL, M.D.. To verify LYNDON BARNWELL, M.D.'s current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases

TMB 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 Texas disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Generic-heavy

LYNDON BARNWELL, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 3,976 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.

3,976
Total Claims
$788K
Total Drug Cost
658
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
7,557
Total Day Supply
224,060
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$652K
Generic Drug Cost
$136K
Opioid Claims
20 (0.5% rate)
Antibiotic Claims
17

Patient Demographics

Average Patient Age
73.5 years
Avg HCC Risk Score
1.73
Gender Split
59% female / 41% male
Age Distribution
<65: 89, 65-74: 235, 75-84: 245, 85+: 89

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Donepezil Hcl
649
Memantine Hcl
550
Gabapentin
492
Carbidopa-Levodopa
Carbidopa/Levodopa
172
Duloxetine Hcl
154
Primidone
131
Levetiracetam
104
Topiramate
72
Amantadine
Amantadine Hcl
62
Propranolol Hcl
62

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

Neurology with Special Qualifications in Child Neurology Physician Overview

How LYNDON BARNWELL, M.D. fits within the Neurology with Special Qualifications in Child Neurology Physician landscape nationally.

1,803
Neurology with Special Qualifications in Child Neurology Physician Providers in US
51
States with Neurology with Special Qualifications in Child Neurology Physician
359
Avg Claims per Provider

LYNDON BARNWELL, M.D.'s 3,976 claims are above the specialty average of 359.

Nearby Neurology with Special Qualifications in Child Neurology Physician Providers in Texas

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

Compare Neurology with Special Qualifications in Child Neurology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LYNDON BARNWELL, M.D.'s specialty?
LYNDON BARNWELL, M.D. specializes in Neurology with Special Qualifications in Child Neurology Physician and practices in LAKE JACKSON, Texas. Credentials: M.D..
How much does LYNDON BARNWELL, M.D. prescribe under Medicare Part D?
In 2023, LYNDON BARNWELL, M.D. wrote 3,976 Medicare Part D claims totaling $788K in drug costs for 658 beneficiaries.
What is LYNDON BARNWELL, M.D.'s Medicare quality score?
LYNDON BARNWELL, M.D. has a CMS MIPS Final Score of 59.9405/100 (Quality: 30, Cost: 42.648). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is LYNDON BARNWELL, M.D. located?
LYNDON BARNWELL, M.D. is located at 201 OAK DR S, LAKE JACKSON, TX, 77566. Phone: (979) 480-0990.
What is LYNDON BARNWELL, M.D.'s NPI number?
LYNDON BARNWELL, M.D.'s National Provider Identifier (NPI) is 1205827516, issued on 11/04/2005.
Does LYNDON BARNWELL, M.D. prescribe more brand-name or generic drugs?
LYNDON BARNWELL, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $652K in brand drug costs.
Does LYNDON BARNWELL, M.D. prescribe opioids?
Yes, LYNDON BARNWELL, M.D. had 20 opioid claims in 2023 with an opioid prescribing rate of 0.5%.
How many Neurology with Special Qualifications in Child Neurology Physician providers are there in the US?
There are 1,803 Neurology with Special Qualifications in Child Neurology Physician providers across 51 states in the US. The average Neurology with Special Qualifications in Child Neurology Physician provider writes 359 Medicare Part D claims per year.
What drugs does LYNDON BARNWELL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, LYNDON BARNWELL, M.D.'s most frequently prescribed drugs include Donepezil Hcl, Memantine Hcl, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LYNDON BARNWELL, M.D. accept Medicare?
LYNDON BARNWELL, M.D. appears in CMS Medicare data with 3,976 Part D claims and 658 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LYNDON BARNWELL, M.D.'s credentials?
LYNDON BARNWELL, M.D.'s NPI is 1205827516 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