STEPHEN LOUIS RENNYSON MD
NPI 1912035767
Internal Medicine - Cardiovascular Disease in Charlotte, NC

Q: What is Stephen Rennyson's NPI number?

The NPI number for Stephen Rennyson is 1912035767. It was assigned to this individual provider in the NPPES registry on March 2, 2007.

Q: What is Stephen Rennyson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Rennyson was last updated on July 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 02, 2007PECOS EnrolledAccepts Medicare Assignment

89.26/100

CMS Quality Rating

10650 PARK RD, CHARLOTTE, NC 28210(704) 667-3840 Get Directions Write a Review

NPPES record last updated: July 16, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 16, 2024, Nov 27, 2017, Nov 12, 2017 (3 updates tracked since 2017).

On this page

About Stephen Louis Rennyson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEPHEN LOUIS RENNYSON MD (NPI 1912035767) is an individual cardiovascular disease provider in Charlotte, North Carolina, licensed in North Carolina (2011-00651) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS, is affiliated with Carolinas Medical Center-northeast, and maintains 4 additional practice locations.

NPPES Registry Identity

NPI1912035767

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameSTEPHEN LOUIS RENNYSONCredential: MD

Location Address10650 PARK RDCharlotte, NC 28210-8538

Mailing AddressPo Box 19305Charlotte, NC 28219-9305

Phone(704) 667-3840

Sole ProprietorNo

Medical School CMSEastern Virginia Medical SchoolGraduated 2006

Enumeration DateMarch 2, 2007

Last NPPES UpdateJuly 16, 20243 updates tracked since enumeration

✔ NPI 1912035767 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in NC · 2011-00651

Definition

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.

10650 PARK RD, Charlotte, NC 28210

Open in Google Maps ↗

Secondary Practice Locations 4

Location 1447 McAlister Rd, STE 3200Lincolnton, NC 28092-4114 · Phone (980) 212-6300

Location 2101 E W T Harris Blvd, Ste 1213Charlotte, NC 28262-3485 · Phone (704) 863-1950

Location 3134 Medical Park Rd, Ste 111 - Adult CardiologyMooresville, NC 28117-8526 · Phone (704) 801-9100

Location 41237 Harding Pl, Ste 3100Charlotte, NC 28204 · Phone (704) 373-0212

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of North Carolina and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Stephen Louis Rennyson Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7113196783

PECOS Enrollment IDI20110816000708, I20240814000720

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Stephen Rennyson reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Carolinas Physicians Network Inc

Same address

Vascular Surgery

10650 PARK RD
Charlotte, NC 28210

Reassigned Medicare billing, North Carolina and South Carolina enrollments
Also billed through NPI 1568610889 (South Carolina)
1,646 clinicians in this Medicare group

NPI 1417272907 (704) 667-3840

Carolinas Medical Center

0.2 mi

Cardiovascular Disease

10502 PARK RD, SUITE 110
Charlotte, NC 28210

Reassigned Medicare billing, North Carolina enrollment
2,223 clinicians in this Medicare group

NPI 1578086187 (704) 667-1540

Centra Medical Group, LLC

131 mi

Rural Health

414 PARK AVE
Danville, VA 24541

Reassigned Medicare billing, Virginia enrollment
757 clinicians in this Medicare group

NPI 1790552172 (434) 857-3600

Centra Health Inc

187 mi

General Acute Care Hospital

3300 RIVERMONT AVE
Lynchburg, VA 24503

Reassigned Medicare billing, Virginia enrollment
42 clinicians in this Medicare group

NPI 1770693939 (434) 200-3777

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 35

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.

276 services272 patients

Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306

261 services260 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

220 services218 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

176 services81 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

173 services98 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

132 services111 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

72 services61 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

An ultrasound of the heart, also known as an echocardiogram, uses sound waves to create pictures of your heart. It shows the structure, movement, and blood flow within your heart. This helps assess the heart's health and function, including the valves and rate.

54 services50 patients

Heart muscle strain imaging 93356

Heart muscle strain imaging is a non-invasive test that uses sound waves to create pictures of your heart. It helps doctors evaluate how well your heart muscle is working and detect any damage or disease. This can aid in diagnosing heart conditions and guiding treatment plans.

45 services45 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

44 services44 patients

Ultrasound of heart, follow-up 93308

A follow-up ultrasound of the heart, also known as an echocardiogram, is a non-invasive test that uses sound waves to create images of your heart. It helps doctors monitor your heart's function and structures after initial assessment or treatment.

41 services40 patients

Office or other outpatient visit for the evaluation and management of established patient that may not require presence of healthcare professional 99211

This service involves an outpatient visit for established patients who may not need direct interaction with a healthcare professional. It could include reviewing test results, monitoring existing conditions, or adjusting treatment plans. It's typically done remotely, ensuring your comfort and convenience.

40 services31 patients

Blood test, clotting time 85610

A clotting time blood test helps determine how quickly your blood forms clots, a process crucial to stop bleeding. During the test, a small blood sample is taken from your arm. The sample is then analyzed in a lab to see how long it takes for a clot to form.

39 services30 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

An exercise or drug-induced heart stress test with ECG is a procedure to assess how your heart functions under stress. It can involve exercising or medication to make your heart work harder while an ECG records its activity. A physician reviews the results.

39 services39 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

This procedure, an echocardiogram, uses sound waves to create images of your heart. It aids in assessing your heart's blood flow, chambers, and valves. It's a follow-up procedure, ensuring that your heart is functioning properly post-treatment.

39 services38 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

37 services37 patients

Injection, perflutren lipid microspheres, per ml Q9957

Perflutren lipid microspheres injection, per ml, is a diagnostic tool used to enhance ultrasound images. It contains tiny gas-filled bubbles that improve the clarity of the images, aiding in a more accurate diagnosis.

35 services26 patients

Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days 93244

A heart rhythm review involves monitoring your heart's electrical activity for more than 48 hours up to 7 days. Using a device called an external EKG, doctors can track your heartbeats to detect irregularities and help diagnose heart conditions.

34 services34 patients

Heart muscle strain imaging 93356

31 services31 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

31 services31 patients

Critical care, each additional 30 minutes 99292

Critical care refers to special attention given to patients facing life-threatening conditions. Each additional 30 minutes indicates the extension of this specialized care. This might include close monitoring, medication adjustments, and immediate interventions as needed.

23 services12 patients

Ultrasound of heart with color-depicted blood flow, rate and valve function 93325

21 services21 patients

Ultrasound of heart with probe in esophagus, with report 93312

This procedure, called a transesophageal echocardiogram, uses a small probe passed into your esophagus to capture detailed images of your heart. The report provides information about your heart's structure and function.

20 services20 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

19 services19 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician 93018

19 services19 patients

Ultrasound of heart blood flow, valves and chambers 93320

An ultrasound of your heart, also known as an echocardiogram, is a test that uses sound waves to create detailed images of your heart. It helps doctors check the health of your heart's chambers, valves, and blood flow.

19 services19 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

19 services15 patients

Ultrasound of heart, follow-up 93308

16 services16 patients

Ultrasound of heart blood flow, valves and chambers, follow-up 93321

16 services16 patients

Heart rhythm recording continous external ekg over more than 48 hours up to 7 days 93242

This procedure involves wearing a device, an external EKG, for up to 7 days to continuously monitor your heart rhythm. It helps detect irregularities that may not occur during a standard EKG. The device is non-invasive and safe.

15 services15 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

14 services12 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

12 services12 patients

External shock to heart to regulate heart beat 92960

This procedure, known as cardioversion, uses an external electrical shock to restore your heart's normal rhythm. It's typically performed when irregular heartbeats, or arrhythmias, are causing severe symptoms and aren't responding to medications.

11 services11 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision and review by physician 93015

An exercise or drug-induced heart stress test with ECG is a procedure performed by a doctor to assess how your heart responds to exertion. It involves monitoring your heart's electrical activity while you exercise or after medication is given to mimic exercise effects.

11 services11 patients

Ultrasound of heart during rest, exercise and/or drug-induced stress with report 93350

This procedure involves using ultrasound imaging to view your heart at rest, during exercise, and/or under drug-induced stress. It helps assess how well your heart responds to exertion. A report of the findings is provided after the test.

11 services11 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Carolinas Medical Center-Northeast

Acute Care Hospitals · Concord, NC

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number340001

Location920 Church St NConcord, NC 28025 · Cabarrus County

Emergency services Birthing friendly

Atrium Health Pineville

Acute Care Hospitals · Charlotte, NC

3/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number340098

Location10628 Park RdCharlotte, NC 28210 · Mecklenburg County

Emergency services Birthing friendly

Carolinas Medical Center/Behav Health

Acute Care Hospitals · Charlotte, NC

2/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number340113

Location1000 Blythe BlvdCharlotte, NC 28203 · Mecklenburg County

Emergency services Birthing friendly

Atrium Health Union

Acute Care Hospitals · Monroe, NC

3/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number340130

Location600 Hospital DrMonroe, NC 28112 · Union County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 28210 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$125.01 typical visit price

range $54.12 – $165.09

Typical copayment $31.25 (range $13.53 – $41.27)

Most-billed visit code 99204

Established Patient

$67.72 typical visit price

range $17.21 – $134.61

Typical copayment $16.93 (range $4.30 – $33.65)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

89.26/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

87.37

Improvement Activities

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PULAK DILIPKUMAR PATEL

Family Medicine

10650 PARK RD, SUITE 420
CHARLOTTE, NC 28210

Mecklenburg County (704) 302-8700

KATHRYN R. MARTIN NP

Nurse Practitioner

10650 PARK RD, STE 330
CHARLOTTE, NC 28210

Mecklenburg County (704) 468-8877

DR. WILLIAM E. BOBO M.D.

Radiology (Radiation Oncology)

10650 PARK RD
CHARLOTTE, NC 28210

Mecklenburg County (704) 355-2736

JOLANTA JOZEFARA MD

Internal Medicine

10650 PARK RD, SUITE 420
CHARLOTTE, NC 28210

Mecklenburg County (704) 302-8700

DR. STACEY ANN MAHADY D.O.

Allergy & Immunology

10650 PARK RD
CHARLOTTE, NC 28210

Mecklenburg County (704) 468-8857

RICHARD ALAN SHUGOLL MD

Internal Medicine (Cardiovascular Disease)

10650 PARK RD
CHARLOTTE, NC 28210

Mecklenburg County (704) 667-3840

EKTA B. SHAH MD

Allergy & Immunology

10650 PARK RD
CHARLOTTE, NC 28210

Mecklenburg County (704) 667-3960

JANET ARRAZCAETA PHARMD

Pharmacist (Oncology)

10650 PARK RD
CHARLOTTE, NC 28210

Mecklenburg County (786) 218-7839

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Rennyson's NPI number?

The NPI number for Stephen Rennyson is 1912035767. It was assigned to this individual provider in the NPPES registry on March 2, 2007.

Where is Stephen Rennyson located?

Stephen Rennyson practices at 10650 Park Rd, Charlotte, NC 28210. The listed phone number is (704) 667-3840.

What is Stephen Rennyson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Stephen Rennyson enrolled in Medicare?

Yes. Stephen Rennyson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Stephen Rennyson's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Stephen Rennyson reassigns Medicare benefits to 4 organizations: Carolinas Physicians Network Inc (Charlotte, NC), Carolinas Medical Center (Charlotte, NC), Centra Medical Group, LLC (Danville, VA) and Centra Health Inc (Lynchburg, VA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Stephen Rennyson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Stephen Rennyson accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee and Blue Cross and Blue Shield of NC and 4 other insurers list Stephen Rennyson as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Stephen Rennyson affiliated with any hospitals?

According to CMS data, Stephen Rennyson is affiliated with Carolinas Medical Center-Northeast, Atrium Health Pineville, Carolinas Medical Center/Behav Health and Atrium Health Union.

When was this NPI record last updated?

The NPPES record for Stephen Rennyson was last updated on July 16, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.