2026 NPPES data Internal Medicine Physician NPI 1811953888 MD
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HAROLD THOMAS, MD

Internal Medicine Physician in AMORY, Mississippi. 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
25K
Medicare Part D claims · 762 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
87%
generic claims · 13% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$502.45
46 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

HAROLD THOMAS, MD reported a CMS MIPS final score of 100/100 — above the 83.1 national average — and filed 25,234 Medicare Part D claims in 2023.

100/100
MIPS score · +17 vs avg
25K
Part D claims, 2023
87%
generic prescribing
Likely
board-certified (heuristic)

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.

HAROLD THOMAS, MD's MIPS score vs every scored U.S. clinician

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

100 Top 7% higher than 93% 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%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. 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

Board certification likely (heuristic — not verified)

HAROLD THOMAS, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 3 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about HAROLD THOMAS, MD?

High performer (top quartile)

NPI registry status

Active

Issued 04/26/2006

NPI 1811953888

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

25,234 829% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Mississippi

How Internal Medicine Physician compares to other specialties among Mississippi providers

Mississippi providers

Internal Medicine Physician share within Mississippi

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

Medicare quality performance — MIPS

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

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

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

0%100%National avg83%99%
MIPS final score (Internal Medicine Physician) — 100/100 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).

HAROLD THOMAS, MD appears in the CMS NPPES registry as a Internal Medicine Physician provider holding MD credentials at 900 EARL FRYE BLVD, AMORY, MS, 38821, with a listed phone of (662) 256-9331. NPI 1811953888 was issued on 04/26/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what THOMAS 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 25,234 prescription claims written by this provider, covering 762 Medicare beneficiaries and totaling roughly $2.3 million in drug spend, split 13% brand-name and 87% generic by claim count, with an opioid prescribing rate of 2.8%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 100/100 for the 2023 performance year (Quality 100), 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

900 EARL FRYE BLVD
AMORY, MS 38821

Provider Details

NPI 1811953888
Specialty Internal Medicine Physician
Credentials MD
Gender Male
NPI Issued 04/26/2006

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Quality

Reporting: Group practice

Hospital and facility affiliations

Facilities where HAROLD THOMAS, 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.

BOA VIDA HOSPITAL OF ABERDEEN MS LLC
ABERDEEN, MS
P AND S CLINIC OB-GYN PLLC
AMORY, MS
TRI-VISTA REHAB, INC.
TUPELO, MS

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

Total received

$502

Largest payer

Novo Nordisk 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 · Typical

HAROLD THOMAS, MD — brand share 13.0%
Specialty average (est.)

13% brand-name claims vs 87% generic, on 25,234 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.

25,234
Total Claims
$2.3M
Total Drug Cost
762
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
40,389
Total Day Supply
1,064,627
Brand vs Generic
13% brand / 87% generic
Brand Drug Cost
$1.8M
Generic Drug Cost
$502K
Opioid Claims
708 (2.8% rate)
Antibiotic Claims
724

Patient Demographics

Average Patient Age
74.2 years
Avg HCC Risk Score
1.29
Gender Split
61% female / 39% male
Age Distribution
<65: 99, 65-74: 275, 75-84: 274, 85+: 114

Top Prescribed Drugs (Medicare Part D)

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

What HAROLD THOMAS, 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
Atorvastatin Calcium
1,088
Amlodipine Besylate
765
Gabapentin
695
Potassium Chloride
597
Furosemide
592
Omeprazole
572
Pantoprazole Sodium
539
Levothyroxine Sodium
507
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
458
Losartan Potassium
456

* 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 HAROLD THOMAS, 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

HAROLD THOMAS, MD's 25,234 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Mississippi

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

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

Frequently Asked Questions

What is HAROLD THOMAS, MD's specialty?
HAROLD THOMAS, MD specializes in Internal Medicine Physician and practices in AMORY, Mississippi. Credentials: MD.
How much does HAROLD THOMAS, MD prescribe under Medicare Part D?
In 2023, HAROLD THOMAS, MD wrote 25,234 Medicare Part D claims totaling $2.3M in drug costs for 762 beneficiaries.
What is HAROLD THOMAS, MD's Medicare quality score?
HAROLD THOMAS, MD has a CMS MIPS Final Score of 100/100 (Quality: 100). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is HAROLD THOMAS, MD located?
HAROLD THOMAS, MD is located at 900 EARL FRYE BLVD, AMORY, MS, 38821. Phone: (662) 256-9331.
What is HAROLD THOMAS, MD's NPI number?
HAROLD THOMAS, MD's National Provider Identifier (NPI) is 1811953888, issued on 04/26/2006.
Does HAROLD THOMAS, MD prescribe more brand-name or generic drugs?
HAROLD THOMAS, MD's prescribing is 13% brand-name and 87% generic drugs by claim count, with $1.8M in brand drug costs.
Does HAROLD THOMAS, MD prescribe opioids?
Yes, HAROLD THOMAS, MD had 708 opioid claims in 2023 with an opioid prescribing rate of 2.8%.
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 HAROLD THOMAS, MD prescribe most often?
Based on 2023 Medicare Part D data, HAROLD THOMAS, MD's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does HAROLD THOMAS, MD accept Medicare?
HAROLD THOMAS, MD appears in CMS Medicare data with 25,234 Part D claims and 762 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify HAROLD THOMAS, MD's credentials?
HAROLD THOMAS, MD's NPI is 1811953888 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