NPI registry status
Active
2026 NPPES data Cardiovascular Disease Physician NPI 1336132729 M.D.
Verify on CMS → John Lystash, M.D.
Cardiovascular Disease Physician in Bluffton, 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 24,810 in Cardiovascular Disease 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
7K
Medicare Part D claims · 695 beneficiaries · Cardiovascular Disease Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
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 Lystash, M.D. filed 6,546 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in Bluffton, South Carolina, prescribing 86% generic.
- 7K
- Part D claims, 2023
- 86%
- generic prescribing
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 Lystash, M.D.'s Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
6,546 Top 4% higher than 96% 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 Lystash, M.D. 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 Lystash, M.D.?
Quality data not reportedPrimary specialty
Cardiovascular Disease Physician
Medicare Part D claims
6,546 116% vs specialty avg
Specialty distribution in South Carolina
How Cardiovascular Disease 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 Cardiovascular Disease 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 Lystash, M.D. appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding M.D. credentials at 29 PLANTATION PARK DR, Bluffton, SC, 29910, with a listed phone of (843) 706-7090. NPI 1336132729 was issued on 08/31/2005.
Medicare Part D records for calendar year 2023 show 6,546 prescription claims written by this provider, covering 695 Medicare beneficiaries and totaling roughly $932K in drug spend, split 14% brand-name and 86% generic by claim count.
Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,810 enrolled providers across 54 states and an average of 3,033 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 | 1336132729 |
|---|---|
| Specialty | Cardiovascular Disease Physician |
| Credentials | M.D. |
| Gender | Male |
| NPI Issued | 08/31/2005 |
Brand vs generic prescribing mix · Typical
John Lystash, M.D. - brand share 14.0%
Cardiovascular Disease Physician average
14% brand-name claims vs 86% generic, on 6,546 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.
6,546
Total Claims
$932K
Total Drug Cost
695
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 16,105
- Total Day Supply
- 479,296
- Brand vs Generic
- 14% brand / 86% generic
- Brand Drug Cost
- $811K
- Generic Drug Cost
- $121K
- Antibiotic Claims
- 33
Patient Demographics
- Average Patient Age
- 76.7 years
- Avg HCC Risk Score
- 1.66
- Gender Split
- 47% female / 53% male
- Age Distribution
- <65: 57, 65-74: 214, 75-84: 283, 85+: 141
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What John Lystash, M.D. prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metoprolol Tartrate
Metoprolol Tartrate
575 claims
- Eliquis
Eliquis
436 claims
- Furosemide
Furosemide
322 claims
- Clopidogrel
Clopidogrel
308 claims
- Amlodipine Besylate
Amlodipine Besylate
270 claims
- Atorvastatin Calcium
Atorvastatin Calcium
233 claims
- Metoprolol Succinate 226
Metoprolol Succinate
226 claims
- Hydralazine Hcl 211
Hydralazine Hcl
211 claims
| Drug | Claims |
|---|---|
| Metoprolol Tartrate | 575 |
| Eliquis Apixaban | 436 |
| Furosemide | 322 |
| Clopidogrel Clopidogrel Bisulfate | 308 |
| Amlodipine Besylate | 270 |
| Atorvastatin Calcium | 233 |
| Metoprolol Succinate | 226 |
| Hydralazine Hcl | 211 |
| Isosorbide Mononitrate Er Isosorbide Mononitrate | 210 |
| Losartan Potassium | 201 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
More Cardiovascular Disease Physician in SC →
All providers in South Carolina →
Compare specialties →
Cardiovascular Disease Physician Overview
How John Lystash, M.D. fits within the Cardiovascular Disease Physician landscape nationally.
24,810
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider
John Lystash, M.D.'s 6,546 claims are above the specialty average of 3,033.
Nearby Cardiovascular Disease Physician Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Lystash.
Dr. Nitesh Ainani
M.D
Pawleys Island, SC
Dr. Carlos Albrecht
M.D.
Lancaster, SC
Dr. Mitchell Alderson
M.D.
Camden, SC
Dr. Milton Alexander
MD
Columbia, SC
Dr. Zahid Ali
MD
Easley, SC
Compare Cardiovascular Disease 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 Cardiovascular Disease 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.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore South Carolina
Frequently Asked Questions
What is John Lystash, M.D.'s specialty? ▼
John Lystash, M.D. specializes in Cardiovascular Disease Physician and practices in Bluffton, South Carolina. Credentials: M.D..
How much does John Lystash, M.D. prescribe under Medicare Part D? ▼
In 2023, John Lystash, M.D. wrote 6,546 Medicare Part D claims totaling $932K in drug costs for 695 beneficiaries.
Where is John Lystash, M.D. located? ▼
John Lystash, M.D. is located at 29 PLANTATION PARK DR, Bluffton, SC, 29910. Phone: (843) 706-7090.
What is John Lystash, M.D.'s NPI number? ▼
John Lystash, M.D.'s National Provider Identifier (NPI) is 1336132729, issued on 08/31/2005.
Does John Lystash, M.D. prescribe more brand-name or generic drugs? ▼
John Lystash, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $811K in brand drug costs.
How many Cardiovascular Disease Physician providers are there in the US? ▼
There are 24,810 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does John Lystash, M.D. prescribe most often? ▼
Based on 2023 Medicare Part D data, John Lystash, M.D.'s most frequently prescribed drugs include Metoprolol Tartrate, Eliquis, Furosemide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Lystash, M.D. accept Medicare? ▼
John Lystash, M.D. appears in CMS Medicare data with 6,546 Part D claims and 695 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Lystash, M.D.'s credentials? ▼
John Lystash, M.D.'s NPI is 1336132729 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
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.
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.