2026 NPPES data Dermatology Physician NPI 1356464838 M.D.
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LONNIE HAMMONDS, M.D.

Dermatology Physician in MOUNTAIN HOME, Arkansas. 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
2K
Medicare Part D claims · 758 beneficiaries · Dermatology Physician avg: 729
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$432.77
20 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: LONNIE HAMMONDS, M.D. is a Dermatology Physician ([object Object]) practicing in MOUNTAIN HOME, Arkansas with a Medicare Part D prescribing footprint of 2K claims across 758 beneficiaries — 11% brand-name prescribing . Industry payments of $432.77 across 20 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: LONNIE HAMMONDS, M.D. filed 2,134 Medicare Part D claims in 2023 across MOUNTAIN HOME, Arkansas. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

LONNIE HAMMONDS, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

LONNIE HAMMONDS, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 04/09/2007

NPI 1356464838

Primary specialty

Dermatology Physician

Mid-sized

14,610 US NPIs in this specialty

Medicare Part D claims

2,134 193% vs specialty avg

2023 prescription claims

Specialty avg: 729

Specialty distribution in Arkansas

How Dermatology Physician compares to other specialties among Arkansas providers

Arkansas providers

Dermatology Physician share within Arkansas

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Dermatology 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).

LONNIE HAMMONDS, M.D. is a Dermatology Physician provider practicing in MOUNTAIN HOME, Arkansas, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1356464838. 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.

LONNIE HAMMONDS, M.D. appears in the CMS NPPES registry as a Dermatology Physician provider holding M.D. credentials at 2062 HIGHWAY 62 W, MOUNTAIN HOME, AR, 72653, with a listed phone of (870) 425-5464. NPI 1356464838 was issued on 04/09/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAMMONDS 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 2,134 prescription claims written by this provider, covering 758 Medicare beneficiaries and totaling roughly $1.6 million in drug spend, split 11% brand-name and 89% generic by claim count. 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.

Dermatology Physician is a mid-sized specialty nationwide, with 14,610 enrolled providers across 53 states and an average of 729 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

2062 HIGHWAY 62 W
MOUNTAIN HOME, AR 72653

Provider Details

NPI 1356464838
Specialty Dermatology Physician
Credentials M.D.
Gender Male
NPI Issued 04/09/2007

Hospital and facility affiliations

Facilities where LONNIE HAMMONDS, 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.

MARK S KING, MD, PA
MOUNTAIN HOME, AR

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 LONNIE HAMMONDS, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$433

Largest payer

SUN PHARMACEUTICAL INDUSTRIES 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

LONNIE HAMMONDS, M.D. — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 2,134 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.

2,134
Total Claims
$1.6M
Total Drug Cost
758
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,615
Total Day Supply
71,521
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$1.5M
Generic Drug Cost
$63K
Antibiotic Claims
124

Patient Demographics

Average Patient Age
72.5 years
Avg HCC Risk Score
1.16
Gender Split
54% female / 46% male
Age Distribution
<65: 87, 65-74: 353, 75-84: 246, 85+: 72

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Triamcinolone Acetonide
402
Ketoconazole
283
Hydrocortisone
106
Fluocinonide
87
Betamethasone Dipropionate
83
Fluorouracil
79
Methotrexate
Methotrexate Sodium
78
Prednisone
70
Spironolactone
64
Doxycycline Hyclate
63

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

Dermatology Physician Overview

How LONNIE HAMMONDS, M.D. fits within the Dermatology Physician landscape nationally.

14,610
Dermatology Physician Providers in US
53
States with Dermatology Physician
729
Avg Claims per Provider

LONNIE HAMMONDS, M.D.'s 2,134 claims are above the specialty average of 729.

Nearby Dermatology Physician Providers in Arkansas

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

Compare Dermatology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LONNIE HAMMONDS, M.D.'s specialty?
LONNIE HAMMONDS, M.D. specializes in Dermatology Physician and practices in MOUNTAIN HOME, Arkansas. Credentials: M.D..
How much does LONNIE HAMMONDS, M.D. prescribe under Medicare Part D?
In 2023, LONNIE HAMMONDS, M.D. wrote 2,134 Medicare Part D claims totaling $1.6M in drug costs for 758 beneficiaries.
Where is LONNIE HAMMONDS, M.D. located?
LONNIE HAMMONDS, M.D. is located at 2062 HIGHWAY 62 W, MOUNTAIN HOME, AR, 72653. Phone: (870) 425-5464.
What is LONNIE HAMMONDS, M.D.'s NPI number?
LONNIE HAMMONDS, M.D.'s National Provider Identifier (NPI) is 1356464838, issued on 04/09/2007.
Does LONNIE HAMMONDS, M.D. prescribe more brand-name or generic drugs?
LONNIE HAMMONDS, M.D.'s prescribing is 11% brand-name and 89% generic drugs by claim count, with $1.5M in brand drug costs.
How many Dermatology Physician providers are there in the US?
There are 14,610 Dermatology Physician providers across 53 states in the US. The average Dermatology Physician provider writes 729 Medicare Part D claims per year.
What drugs does LONNIE HAMMONDS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, LONNIE HAMMONDS, M.D.'s most frequently prescribed drugs include Triamcinolone Acetonide, Ketoconazole, Hydrocortisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LONNIE HAMMONDS, M.D. accept Medicare?
LONNIE HAMMONDS, M.D. appears in CMS Medicare data with 2,134 Part D claims and 758 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LONNIE HAMMONDS, M.D.'s credentials?
LONNIE HAMMONDS, M.D.'s NPI is 1356464838 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.
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