NPI registry status
Active
2026 NPPES data Procedural Dermatology Physician NPI 1639164528 M.D., LLC
Verify on CMS → John Humeniuk, M.D., LLC
Procedural Dermatology Physician in Greenville, South Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 679 in Procedural Dermatology Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
4K
Medicare Part D claims · 979 beneficiaries · Procedural Dermatology Physician avg: 664
Generic prescribing
93%
generic claims · 7% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.1K
89 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
John Humeniuk, M.D., LLC filed 3,669 Medicare Part D claims in 2023 as a Procedural Dermatology Physician in Greenville, South Carolina, prescribing 93% generic.
- 4K
- Part D claims, 2023
- 93%
- generic prescribing
- $2.1K
- 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.
John Humeniuk, M.D., LLC's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,669 Top 9% higher than 91% of 1,370,886 prescribers
Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023
◑
Board-eligible specialty (heuristic, not verified)
John Humeniuk, M.D., LLC practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about John Humeniuk, M.D., LLC?
Quality data not reportedPrimary specialty
Procedural Dermatology Physician
Medicare Part D claims
3,669 6× vs specialty avg
Specialty distribution in South Carolina
How Procedural Dermatology Physician compares to other specialties among South Carolina providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Procedural Dermatology Physician. Verify directly:
How MIPS and board certification work
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).
John Humeniuk, M.D., LLC appears in the CMS NPPES registry as a Procedural Dermatology Physician provider holding M.D., LLC credentials at 21 MEMORIAL MEDICAL DR, Greenville, SC, 29605, with a listed phone of (864) 295-9085. NPI 1639164528 was issued on 09/16/2005.
Medicare Part D records for calendar year 2023 show 3,669 prescription claims written by this provider, covering 979 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 7% brand-name and 93% generic by claim count.
Procedural Dermatology Physician is a narrow specialty nationwide, with 679 enrolled providers across 48 states and an average of 664 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
Provider Details
| NPI | 1639164528 |
|---|---|
| Specialty | Procedural Dermatology Physician |
| Credentials | M.D., LLC |
| Gender | Male |
| NPI Issued | 09/16/2005 |
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 John Humeniuk, M.D., LLC. Source: openpaymentsdata.cms.gov.
Total received
$2.1K
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.
Brand vs generic prescribing mix · Generic-heavy
John Humeniuk, M.D., LLC - brand share 7.0%
Procedural Dermatology Physician average
7% brand-name claims vs 93% generic, on 3,669 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.
3,669
Total Claims
$1.2M
Total Drug Cost
979
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 5,032
- Total Day Supply
- 136,980
- Brand vs Generic
- 7% brand / 93% generic
- Brand Drug Cost
- $1.1M
- Generic Drug Cost
- $84K
- Antibiotic Claims
- 530
Patient Demographics
- Average Patient Age
- 75.2 years
- Avg HCC Risk Score
- 1.15
- Gender Split
- 55% female / 45% male
- Age Distribution
- <65: 53, 65-74: 416, 75-84: 393, 85+: 117
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Humeniuk, M.D., LLC prescribes most
Top Medicare Part D drugs by claim count, 2023
- Triamcinolone Acet…
Triamcinolone Acetonide
425 claims
- Betamethasone Dipr…
Betamethasone Dipropionate
368 claims
- Ketoconazole
Ketoconazole
364 claims
- Minocycline Hcl
Minocycline Hcl
292 claims
- Minoxidil
Minoxidil
189 claims
- Hydrocortisone 148
Hydrocortisone
148 claims
- Hydroxyzine Hcl 139
Hydroxyzine Hcl
139 claims
- Metronidazole 125
Metronidazole
125 claims
| Drug | Claims |
|---|---|
| Triamcinolone Acetonide | 425 |
| Betamethasone Dipropionate | 368 |
| Ketoconazole | 364 |
| Minocycline Hcl | 292 |
| Minoxidil | 189 |
| Hydrocortisone | 148 |
| Hydroxyzine Hcl | 139 |
| Metronidazole | 125 |
| Methotrexate Methotrexate Sodium | 116 |
| Prednisone | 114 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Procedural Dermatology Physician in SC →
All providers in South Carolina →
Compare specialties →
Procedural Dermatology Physician Overview
How John Humeniuk, M.D., LLC fits within the Procedural Dermatology Physician landscape nationally.
679
Procedural Dermatology Physician Providers in US
48
States with Procedural Dermatology Physician
664
Avg Claims per Provider
John Humeniuk, M.D., LLC's 3,669 claims are above the specialty average of 664.
Nearby Procedural Dermatology Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Humeniuk.
Dr. Edward Butler
M.D.
Charleston, SC
Marcus Hutchison
Rock Hill, SC
Dr. Travis Love
DO
Mount Pleasant, SC
Dr. Paul Ross
DO
Charleston, SC
Dr. Susan Vanepps
M.D.
Myrtle Beach, SC
Compare Procedural Dermatology Physician nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the South Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Procedural Dermatology Physician peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
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Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
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How insurance networks affect your costs
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Explore South Carolina
Frequently Asked Questions
What is John Humeniuk, M.D., LLC's specialty? ▼
John Humeniuk, M.D., LLC specializes in Procedural Dermatology Physician and practices in Greenville, South Carolina. Credentials: M.D., LLC.
How much does John Humeniuk, M.D., LLC prescribe under Medicare Part D? ▼
In 2023, John Humeniuk, M.D., LLC wrote 3,669 Medicare Part D claims totaling $1.2M in drug costs for 979 beneficiaries.
Where is John Humeniuk, M.D., LLC located? ▼
John Humeniuk, M.D., LLC is located at 21 MEMORIAL MEDICAL DR, Greenville, SC, 29605. Phone: (864) 295-9085.
What is John Humeniuk, M.D., LLC's NPI number? ▼
John Humeniuk, M.D., LLC's National Provider Identifier (NPI) is 1639164528, issued on 09/16/2005.
Does John Humeniuk, M.D., LLC prescribe more brand-name or generic drugs? ▼
John Humeniuk, M.D., LLC's prescribing is 7% brand-name and 93% generic drugs by claim count, with $1.1M in brand drug costs.
How many Procedural Dermatology Physician providers are there in the US? ▼
There are 679 Procedural Dermatology Physician providers across 48 states in the US. The average Procedural Dermatology Physician provider writes 664 Medicare Part D claims per year.
What drugs does John Humeniuk, M.D., LLC prescribe most often? ▼
Based on 2023 Medicare Part D data, John Humeniuk, M.D., LLC's most frequently prescribed drugs include Triamcinolone Acetonide, Betamethasone Dipropionate, Ketoconazole. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Humeniuk, M.D., LLC accept Medicare? ▼
John Humeniuk, M.D., LLC appears in CMS Medicare data with 3,669 Part D claims and 979 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Humeniuk, M.D., LLC's credentials? ▼
John Humeniuk, M.D., LLC's NPI is 1639164528 with credentials M.D., LLC. 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
View source datasets and methodology notes
- 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
Compiled from official public sources by the PlainDoctor editorial team.