Dr. Stephen Louis Rennyson, MD

  • Charlotte, NC
  • Cardiologist
NPI1912035767PAC ID7113196783
Medicare services, 2024
2,162
Medicare patients, 2024
1,203
Part D claims, 2024
1,668
Publications
3
MIPS score, 2024
94
Practice address
10650 Park Rd, Charlotte, NC 28210
Practice phone
Call (704) 667-3840
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

The Sanger Clinic

Charlotte, North Carolina

See all 11 affiliations

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Dr. Stephen Louis Rennyson is a cardiologist in Charlotte, North Carolina

Dr. Rennyson practices at The Sanger Clinic in Charlotte, North Carolina.

Dr. Rennyson's NPI, 1912035767, was assigned on March 2, 2007. Dr. Rennyson graduated from Eastern Virginia Medical School in 2006. Dr. Rennyson holds North Carolina license 2011-00651.

NPI and contact details
Medicare PAC ID
7113196783
NPI enumeration date
March 2, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(704) 667-3840
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
46
Medical school graduation
2006

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Stephen Louis Rennyson practices at The Sanger Clinic in Charlotte, North Carolina

Dr. Rennyson's primary practice is The Sanger Clinic, at 10650 Park Rd, Charlotte, NC 28210 in Mecklenburg County. The practice phone is (704) 667-3840.

  • The Sanger Clinic
    10650 Park Rd, Charlotte, NC 28210 · Mecklenburg CountyPhone(704) 667-3840

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Stephen Louis Rennyson is affiliated with 7 sites of care and 4 medical groups

Dr. Rennyson's primary practice is The Sanger Clinic in Charlotte, North Carolina. Dr. Rennyson is also affiliated with Atrium Health Carolinas Medical Center. The medical group on file is Atrium Health Cleveland Imaging. Dmand AI also links Dr. Rennyson to 3 more hospitals, 3 medical groups and 2 group practices and clinics, each named with a free account.

See all 11 affiliations for Dr. Rennyson

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Stephen Louis Rennyson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Rennyson practices, 6 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
The Sanger ClinicAvailable with a free account
+6 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Stephen Louis Rennyson is one of 726 cardiologists in North Carolina

Cardiovascular disease is Dr. Rennyson's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Rennyson is licensed in North Carolina.

Specialties and state licenses

  • Cardiovascular disease, North CarolinaPrimaryLicense 2011-00651 · taxonomy 207RC0000X

Cardiologists near Dr. Rennyson

Counts of cardiologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Stephen Louis Rennyson billed Medicare for 2,162 services in 2024

CMS data shows 2,162 Medicare services from Dr. Rennyson across 29 procedure codes in 2024, for 1,203 Medicare patients. Medicare paid $119,331 for them.

Medicare services, 20242,162
Medicare patients1,203
Paid by Medicare$119,331
Procedure codes29

Dr. Rennyson's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 1,8652024: 1,27132%
Office and hospital visits
2023: 8822024: 66425%
Other services
2023: 02024: 132
Imaging
2023: 362024: 5656%
Lab and pathology
2023: 302024: 3930%

Where Dr. Rennyson's Medicare services took place, 2024

  • In an office1,12052%
  • In a facility1,04248%

Dr. Rennyson compared with the North Carolina median for cardiologists, 2024

  • Dr. Rennyson
  • North Carolina median
Medicare services
2,162vs 1,71026% above
Medicare patients
1,203vs 75360% above
Part D claims
1,528vs 1,87919% below

Medians across 724 cardiologists in North Carolina with Dmand AI profiles that report each measure.

Dr. Rennyson's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Rennyson

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Rennyson and other cardiologists in North Carolina.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Stephen Louis Rennyson treated 1,203 Medicare patients in 2024, average age 76

CMS counts 1,203 Medicare patients who saw Dr. Rennyson in 2024. The largest group is 75 to 84, with 531 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 5% are also on Medicaid. Their average risk score is 1.71, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Rennyson's median patient age at 74, with 52% women.

Medicare patients, 20241,203
Average age76
Average risk score1.71
Also on Medicaid5%

Dr. Rennyson's Medicare patients by age, 2024

Dr. Rennyson's Medicare patients by sex, 2024

  • Women62652%
  • Men57748%

Chronic conditions among Dr. Rennyson's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Ischemic heart disease58%
  4. Arthritis47%
  5. Atrial fibrillation46%
  6. Heart failure42%
  7. Chronic kidney disease37%
  8. Diabetes35%

Share of Medicare patients with each condition. A patient can have several.

Dr. Rennyson's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women52%
  • Men47%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Stephen Louis Rennyson wrote 1,668 Medicare Part D claims in 2024

In 2024, Dr. Rennyson wrote 1,668 Medicare Part D claims for 374 patients. 76% of them were for generic drugs. CMS names the drug for 1,528 of them, across 26 drugs with 11 or more claims each, at $361,020 in total drug cost. In 2023, CMS named 2,705 claims across 25 drugs.

Part D claims, 20241,668
Drugs named by CMS26
Total drug cost$361,020
Part D patients374

Dr. Rennyson's Part D claims by kind of drug, 2024

  • Generic1,267 claims76%
  • Brand-name401 claims24%

Dr. Rennyson's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2,7052024: 1,52844%

Drugs named by CMS: 26 in 2024, 25 in 2023.

See all prescribing by Dr. Rennyson

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Stephen Louis Rennyson scored 94 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Rennyson for performance year 2024, reported through an alternative payment model (APM). Dr. Rennyson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Rennyson's MIPS scores, performance year 2024

  • 94of 100Final score
  • 81.6of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Stephen Louis Rennyson has 3 publications on record

Dmand AI links 3 papers to Dr. Rennyson. The most frequent topics are Heart-Assist Devices and Heart Failure. Dr. Rennyson has published most often in ASAIO J. Dr. Rennyson's most frequent co-authors are Vigneshwar Kasirajan, MD, Keyur Shah, MD and Rajiv Malhotra, DO, MS.

Papers3

Topics Dr. Rennyson writes about most

  • Heart-Assist Devices
  • Heart Failure

Dr. Rennyson's most frequent co-authors

Recent publications by Dr. Rennyson

See all 3 publications and co-authors

See who Dr. Rennyson researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Rennyson works with, so you can find a warm path to the right cardiologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Stephen Louis Rennyson received $175,143 in industry payments from 2016 to 2025

CMS Open Payments shows 230 general payments to Dr. Rennyson from 13 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 85% of the total. Novartis Pharmaceuticals Corporation paid the most, $172,264. It also lists 1 research payment totaling $108 in 2024.

General payments to Dr. Rennyson by program year, 2016 to 2025

General payments to Dr. Rennyson by kind, 2016 to 2025

$175.1Kin total
  • Speaker and faculty fees$149,65085%
  • Travel and lodging$18,55411%
  • Food and beverage$6,9394%

Companies that paid Dr. Rennyson the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Rennyson

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Stephen Louis Rennyson graduated from Eastern Virginia Medical School

Dr. Rennyson graduated from Eastern Virginia Medical School in 2006.

  1. Medical schoolEastern Virginia Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Stephen Louis Rennyson's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Stephen Louis Rennyson

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Stephen Louis Rennyson's NPI number?

Dr. Stephen Louis Rennyson's NPI number is 1912035767. It was assigned on March 2, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Stephen Louis Rennyson?

Dr. Stephen Louis Rennyson is a cardiologist in Charlotte, North Carolina. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).

Where does Dr. Stephen Louis Rennyson practice?

Dr. Rennyson practices at 10650 Park Rd, Charlotte, NC 28210. Dr. Rennyson's primary practice is The Sanger Clinic in Charlotte, North Carolina. Dmand AI also links Dr. Rennyson to 3 hospitals, 3 medical groups and 2 group practices and clinics.

What is Dr. Stephen Louis Rennyson's office phone number?

The practice phone on file for Dr. Rennyson is (704) 667-3840.

What is Dr. Stephen Louis Rennyson's medical license number?

Dr. Rennyson holds North Carolina license 2011-00651.

Which hospitals is Dr. Stephen Louis Rennyson affiliated with?

Dr. Rennyson is affiliated with Atrium Health Carolinas Medical Center. Dmand AI links Dr. Rennyson to 3 more hospitals.

What medical group is Dr. Stephen Louis Rennyson part of?

Dr. Rennyson is linked to Atrium Health Cleveland Imaging. Dmand AI links Dr. Rennyson to 3 more medical groups.

Does Dr. Stephen Louis Rennyson accept Medicare?

Yes. CMS data shows Dr. Rennyson billed Medicare for 2,162 services in 2024, and Dr. Rennyson accepts Medicare assignment.

What is Dr. Stephen Louis Rennyson's MIPS score?

Dr. Rennyson's MIPS final score for performance year 2024 is 94 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Stephen Louis Rennyson see?

CMS counts 1,203 Medicare patients who saw Dr. Rennyson in 2024, with an average age of 76.

Show 7 more questionsShow fewer questions

What services does Dr. Stephen Louis Rennyson bill to Medicare?

In 2024, Dr. Rennyson's most billed Medicare services were heart test or procedure (93306), heart test or procedure (93000) and critical care (99291).

Where did Dr. Stephen Louis Rennyson go to medical school?

Dr. Rennyson graduated from Eastern Virginia Medical School in 2006.

What drugs does Dr. Stephen Louis Rennyson prescribe most?

In 2024 Medicare Part D data, Dr. Rennyson's most prescribed drugs by claims were Carvedilol, Atorvastatin Calcium and Eliquis.

Has Dr. Stephen Louis Rennyson received payments from drug or device companies?

CMS Open Payments shows $175,143 in general payments to Dr. Rennyson from 13 companies from 2016 to 2025. The largest total came from Novartis Pharmaceuticals Corporation.

How long has Dr. Stephen Louis Rennyson been practicing?

Dr. Rennyson graduated from medical school in 2006, 20 years ago.

Does Dr. Stephen Louis Rennyson do research?

Dmand AI links 3 publications to Dr. Rennyson.

Who does Dr. Stephen Louis Rennyson publish with?

Dr. Rennyson's most frequent co-authors are Vigneshwar Kasirajan, MD (2 shared papers), Keyur Shah, MD (2 shared papers) and Rajiv Malhotra, DO, MS (1 shared paper).

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