2026 NPPES data Internal Medicine Physician NPI 1811938368 MD
Verify on CMS →

THOMAS BARKLEY, MD

Internal Medicine Physician in DOTHAN, Alabama. 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
1K
Medicare Part D claims · 218 beneficiaries · Internal Medicine Physician avg: 3K
MIPS score
97.5814/100
▲ 14 pts above national avg 83.1 · [object Object]
Industry payments
$263.11
14 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: THOMAS BARKLEY, MD is a Internal Medicine Physician ([object Object]) practicing in DOTHAN, Alabama with a Medicare Part D prescribing footprint of 1K claims across 218 beneficiaries . Their CMS MIPS Final Score of 97.5814/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $263.11 across 14 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: THOMAS BARKLEY, MD reported a CMS MIPS final score of 97.5814 out of 100, above the 83.1 national average, and filed 1,445 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)

THOMAS BARKLEY, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

THOMAS BARKLEY, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 06/08/2006

NPI 1811938368

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

1,445 47% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

97.5814/100 14.481400000000008% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Alabama

How Internal Medicine Physician compares to other specialties among Alabama providers

Alabama providers

Internal Medicine Physician share within Alabama

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

Medicare quality performance — MIPS

THOMAS BARKLEY, MD's 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
97.5814/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 97.5814/100 vs national avg 83.1

0%100%National avg83%97.6%
MIPS final score (Internal Medicine Physician) — 97.5814/100 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).

THOMAS BARKLEY, MD is a Internal Medicine Physician provider practicing in DOTHAN, Alabama, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1811938368. 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.

THOMAS BARKLEY, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 1108 ROSS CLARK CIR, DOTHAN, AL, 36301, with a listed phone of (334) 793-8087. NPI 1811938368 was issued on 06/08/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARKLEY 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 1,445 prescription claims written by this provider, covering 218 Medicare beneficiaries and totaling roughly $109K in drug spend, with an opioid prescribing rate of 4.3%. 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 97.5814/100 for the 2023 performance year (Quality 86.5348), compared with the national average of 83.1.

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

1108 ROSS CLARK CIR
DOTHAN, AL 36301

Provider Details

NPI 1811938368
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 06/08/2006

CMS Quality Score (MIPS)

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

97.5814
Final Score
Avg: 83.1
86.5348
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where THOMAS BARKLEY, 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.

HOUSTON COUNTY HEALTHCARE AUTHORITY
DOTHAN, AL

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 THOMAS BARKLEY, MD. Source: openpaymentsdata.cms.gov.

Total received

$263

Largest payer

E.R. Squibb & Sons, L.L.C.

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.

Medicare Part D Prescribing Data

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

1,445
Total Claims
$109K
Total Drug Cost
218
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,735
Total Day Supply
46,778
Generic Drug Cost
$24K
Opioid Claims
62 (4.3% rate)
Antibiotic Claims
64

Patient Demographics

Average Patient Age
70.5 years
Avg HCC Risk Score
2.79
Gender Split
50% female / 50% male
Age Distribution
<65: 51, 65-74: 78, 75-84: 68, 85+: 21

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
91
Pantoprazole Sodium
76
Eliquis
Apixaban
69
Amlodipine Besylate
67
Carvedilol
57
Clopidogrel
Clopidogrel Bisulfate
57
Furosemide
48
Tamsulosin Hcl
45
Losartan Potassium
37
Potassium Chloride
37

* 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 THOMAS BARKLEY, 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

THOMAS BARKLEY, MD's 1,445 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Alabama

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

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

Frequently Asked Questions

What is THOMAS BARKLEY, MD's specialty?
THOMAS BARKLEY, MD specializes in Internal Medicine Physician and practices in DOTHAN, Alabama. Credentials: MD.
How much does THOMAS BARKLEY, MD prescribe under Medicare Part D?
In 2023, THOMAS BARKLEY, MD wrote 1,445 Medicare Part D claims totaling $109K in drug costs for 218 beneficiaries.
What is THOMAS BARKLEY, MD's Medicare quality score?
THOMAS BARKLEY, MD has a CMS MIPS Final Score of 97.5814/100 (Quality: 86.5348). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is THOMAS BARKLEY, MD located?
THOMAS BARKLEY, MD is located at 1108 ROSS CLARK CIR, DOTHAN, AL, 36301. Phone: (334) 793-8087.
What is THOMAS BARKLEY, MD's NPI number?
THOMAS BARKLEY, MD's National Provider Identifier (NPI) is 1811938368, issued on 06/08/2006.
Does THOMAS BARKLEY, MD prescribe opioids?
Yes, THOMAS BARKLEY, MD had 62 opioid claims in 2023 with an opioid prescribing rate of 4.3%.
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 THOMAS BARKLEY, MD prescribe most often?
Based on 2023 Medicare Part D data, THOMAS BARKLEY, MD's most frequently prescribed drugs include Atorvastatin Calcium, Pantoprazole Sodium, Eliquis. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does THOMAS BARKLEY, MD accept Medicare?
THOMAS BARKLEY, MD appears in CMS Medicare data with 1,445 Part D claims and 218 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify THOMAS BARKLEY, MD's credentials?
THOMAS BARKLEY, MD's NPI is 1811938368 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.
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