NPI registry status
Active
2026 NPPES data Orthopaedic Hand Surgery Physician NPI 1619902905 MD
Verify on CMS → John Ernst, MD
Orthopaedic Hand Surgery Physician in Charleston, 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 1,955 in Orthopaedic Hand Surgery 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
30
Medicare Part D claims · 27 beneficiaries · Orthopaedic Hand Surgery Physician avg: 180
Industry payments
$56.76
2 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
John Ernst, MD filed 30 Medicare Part D claims in 2023 as an Orthopaedic Hand Surgery Physician in Charleston, South Carolina.
- 30
- Part D claims, 2023
- $56.76
- 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 Ernst, MD's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
30 0th percentile higher than 0% 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
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Board-eligible specialty (heuristic, not verified)
John Ernst, MD 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 Ernst, MD?
Quality data not reportedPrimary specialty
Orthopaedic Hand Surgery Physician
Medicare Part D claims
30 83% vs specialty avg
Specialty distribution in South Carolina
How Orthopaedic Hand Surgery 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 Orthopaedic Hand Surgery 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 Ernst, MD appears in the CMS NPPES registry as an Orthopaedic Hand Surgery Physician provider holding MD credentials at 2093 HENRY TECKLENBURG DR STE 200E, Charleston, SC, 29414, with a listed phone of (843) 958-2500. NPI 1619902905 was issued on 07/12/2006.
Medicare Part D records for calendar year 2023 show 30 prescription claims written by this provider, covering 27 Medicare beneficiaries and totaling roughly $7K in drug spend, with an opioid prescribing rate of 73.3%.
Orthopaedic Hand Surgery Physician is a narrow specialty nationwide, with 1,955 enrolled providers across 52 states and an average of 180 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 | 1619902905 |
|---|---|
| Specialty | Orthopaedic Hand Surgery Physician |
| Credentials | MD |
| Gender | Male |
| NPI Issued | 07/12/2006 |
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 Ernst, MD. Source: openpaymentsdata.cms.gov.
Total received
$57
Largest payer
Ferring Pharmaceuticals 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
30
Total Claims
$7K
Total Drug Cost
27
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 30
- Total Day Supply
- 244
- Generic Drug Cost
- $175
- Opioid Claims
- 22 (73.3% rate)
Patient Demographics
- Average Patient Age
- 72.1 years
- Avg HCC Risk Score
- 0.67
- Gender Split
- 56% female / 44% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 20 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Orthopaedic Hand Surgery Physician in SC →
All providers in South Carolina →
Compare specialties →
Orthopaedic Hand Surgery Physician Overview
How John Ernst, MD fits within the Orthopaedic Hand Surgery Physician landscape nationally.
1,955
Orthopaedic Hand Surgery Physician Providers in US
52
States with Orthopaedic Hand Surgery Physician
180
Avg Claims per Provider
John Ernst, MD's 30 claims are below the specialty average of 180.
Nearby Orthopaedic Hand Surgery Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Ernst.
Dr. David Brown
M.D., PH.D.
Spartanburg, SC
Dr. Jerrold Buckaloo
MD
Orangeburg, SC
Dr. Charles Daly
M.D.
Charleston, SC
Dr. Jon Devries
MD
North Charleston, SC
Dr. David Fulton
M.D.
Columbia, SC
Compare Orthopaedic Hand Surgery 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 Orthopaedic Hand Surgery 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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Explore South Carolina
Frequently Asked Questions
What is John Ernst, MD's specialty? ▼
John Ernst, MD specializes in Orthopaedic Hand Surgery Physician and practices in Charleston, South Carolina. Credentials: MD.
How much does John Ernst, MD prescribe under Medicare Part D? ▼
In 2023, John Ernst, MD wrote 30 Medicare Part D claims totaling $7K in drug costs for 27 beneficiaries.
Where is John Ernst, MD located? ▼
John Ernst, MD is located at 2093 HENRY TECKLENBURG DR STE 200E, Charleston, SC, 29414. Phone: (843) 958-2500.
What is John Ernst, MD's NPI number? ▼
John Ernst, MD's National Provider Identifier (NPI) is 1619902905, issued on 07/12/2006.
Does John Ernst, MD prescribe opioids? ▼
Yes, John Ernst, MD had 22 opioid claims in 2023 with an opioid prescribing rate of 73.3%.
How many Orthopaedic Hand Surgery Physician providers are there in the US? ▼
There are 1,955 Orthopaedic Hand Surgery Physician providers across 52 states in the US. The average Orthopaedic Hand Surgery Physician provider writes 180 Medicare Part D claims per year.
What drugs does John Ernst, MD prescribe most often? ▼
Based on 2023 Medicare Part D data, John Ernst, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Ernst, MD accept Medicare? ▼
John Ernst, MD appears in CMS Medicare data with 30 Part D claims and 27 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Ernst, MD's credentials? ▼
John Ernst, MD's NPI is 1619902905 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
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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.