Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM DAVID SULLIVAN M.D.
NPI 1659385276
Internal Medicine - Cardiovascular Disease in Laurel, MS

Q: What is William Sullivan's NPI number?

The NPI number for William Sullivan is 1659385276. It was assigned to this individual provider in the NPPES registry on July 28, 2006.

Q: What is William Sullivan'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 William Sullivan was last updated on October 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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 July 28, 2006PECOS EnrolledAccepts Medicare Assignment

93.1/100

CMS Quality Rating

1203 JEFFERSON ST, LAUREL, MS 39440(601) 649-2863(601) 649-9479 Get Directions Write a Review

NPPES record last updated: October 7, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About William David Sullivan M.d. NPPES

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

WILLIAM DAVID SULLIVAN M.D. (NPI 1659385276) is an individual cardiovascular disease provider in Laurel, Mississippi, licensed in Mississippi (15587) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with South Central Reg Med Ctr, and is a graduate of Johns Hopkins University School Of Medicine (1992).

NPPES Registry Identity

NPI1659385276

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameWILLIAM DAVID SULLIVANCredential: M.D.

Location Address1203 JEFFERSON STLaurel, MS 39440-4354

Mailing AddressPo Box 247Laurel, MS 39441-0247 · (601) 399-6169 · Fax (601) 399-6281

Phone(601) 649-2863

Fax(601) 649-9479

Sole ProprietorNo

Medical School CMSJohns Hopkins University School Of MedicineGraduated 1992

Enumeration DateJuly 28, 2006

Last NPPES UpdateOctober 7, 2026

NPPES CertifiedOctober 7, 2026

✔ NPI 1659385276 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 MS · 15587

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.

1203 JEFFERSON ST, Laurel, MS 39440

Open in Google Maps ↗

Other Identifiers 1

Medicaid00119394MS

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter Health 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

William David Sullivan M.d. 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 ID2860428299

PECOS Enrollment IDI20091204000521

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 William Sullivan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

South Central Clinics, Inc

Same address

Cardiovascular Disease

1203 JEFFERSON ST
Laurel, MS 39440

Reassigned Medicare billing, Mississippi enrollment
205 clinicians in this Medicare group

NPI 1457878969 (601) 649-2863

South Central Regional Medical Center

Same address

Internal Medicine

1203 JEFFERSON ST
Laurel, MS 39440

Reassigned Medicare billing, Mississippi enrollment
17 clinicians in this Medicare group

NPI 1942093554 (601) 426-4795

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 30

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.

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.

1,103 services711 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.

779 services401 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.

245 services76 patients

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

225 services164 patients

Magnesium level 83735

A magnesium level test is a simple blood test that measures the amount of magnesium in your body. Magnesium is a crucial mineral that helps your nerves, muscles, and heart function properly. The test can help detect health conditions like kidney disease or malnutrition.

203 services149 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.

190 services15 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.

176 services14 patients

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.

167 services161 patients

Blood test, basic group of blood chemicals (calcium, total) 80048

A basic group blood test measures the levels of certain chemicals in your blood, including calcium. This helps assess your overall health and detect potential problems. The procedure involves drawing a small amount of blood from your arm, which is then analyzed in a lab.

143 services96 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.

113 services94 patients

Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician 93016

An exercise or drug-induced heart stress test with ECG involves monitoring your heart's activity while it's under stress, either from exercise or medication. A doctor supervises the entire procedure to ensure safety and accuracy in results. This test helps detect heart problems.

75 services74 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.

75 services74 patients

Blood test, lipids (cholesterol and triglycerides) 80061

A lipid panel is a blood test that measures fats and fatty substances, such as cholesterol and triglycerides. These substances are used by your body as a source of energy. High levels can lead to health issues, including heart disease.

74 services72 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.

71 services67 patients

Blood test, comprehensive group of blood chemicals 80053

A comprehensive group of blood chemicals test, also known as a comprehensive metabolic panel, is a blood test that measures your sugar level, electrolyte and fluid balance, kidney function, and liver function. This helps to check your body's overall health.

70 services67 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.

62 services62 patients

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

57 services57 patients

Electrocardiogram (ecg) 2-day continuous with review and report by health care professional 93224

An Electrocardiogram (ECG) is a non-invasive test that records the electrical activity of your heart. In a 2-day continuous ECG, sensors attached to your chest monitor your heart's rhythm over 48 hours. A healthcare professional then reviews the data to identify any irregularities.

56 services56 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days 93294

This procedure evaluates your pacemaker system remotely for up to 90 days. It checks whether single, dual, multiple lead, or leadless pacemakers are working properly. It's a safe, convenient way to ensure your heart device is functioning optimally.

44 services27 patients

Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count 85025

A Complete Blood Cell Count is a common test that measures various components of the blood, including red cells (carry oxygen), white cells (fight infection), and platelets (help blood clot). An automated test ensures accuracy. The differential count provides detailed information about white cell types.

36 services36 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

28 services28 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.

27 services13 patients

Smoking and tobacco use intensive counseling, 4-10 minutes 99406

This service provides brief, intensive counseling (4-10 minutes) to support you in quitting smoking or tobacco use. It involves discussing the risks of tobacco use, benefits of quitting, and strategies to help you stop. It's a critical step towards a healthier lifestyle.

27 services21 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.

25 services25 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system or implantable defibrillator system, remote up to 90 days 93296

This procedure involves remotely monitoring your pacemaker or implantable defibrillator system. Over a 90-day period, we check the device's performance and your heart's activity. This helps ensure the device is functioning properly and providing the best possible support for your heart health.

22 services20 patients

Ultrasound of heart 93307

An ultrasound of the heart, also known as an echocardiogram, is a non-invasive procedure that uses sound waves to create images of your heart. This test allows your doctor to monitor how your heart and its valves are functioning. It's a safe, painless process that can help diagnose heart conditions.

22 services22 patients

Blood test, thyroid stimulating hormone (tsh) 84443

A TSH blood test measures the level of thyroid stimulating hormone in your body. This hormone is produced by the pituitary gland and regulates how your thyroid works. It's a simple procedure where a small amount of blood is drawn from your arm for analysis.

17 services17 patients

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

16 services15 patients

Nuclear medicine studies of blood flow in heart muscle at rest and with stress with concurrent ct scan 78431

This is a diagnostic test where a tiny amount of radioactive material is used to examine your heart's blood flow at rest & during stress, alongside a CT scan for detailed images. It helps identify any heart-related issues like blockages or damage.

11 services11 patients

Nuclear medicine study of heart muscle blood flow by pet 78434

A nuclear medicine study of heart muscle blood flow by PET is a non-invasive test that uses a small amount of radioactive substance to create detailed images of your heart's blood flow and function. It helps assess heart health and diagnose heart conditions.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

South Central Reg Med Ctr

Acute Care Hospitals · Laurel, MS

2/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number250058

Location1220 Jefferson St Box 607Laurel, MS 39440 · Jones County

Emergency services Birthing friendly

Forrest General Hospital

Acute Care Hospitals · Hattiesburg, MS

1/5 CMS rating

OwnershipGovernment - Local

CMS Certification Number250078

Location6051 Us Highway 49 SouthHattiesburg, MS 39404 · Forrest County

Emergency services Birthing friendly

Magee General Hospital

Acute Care Hospitals · Magee, MS

OwnershipVoluntary non-profit - Private

CMS Certification Number250124

Location300 3rd Ave SEMagee, MS 39111 · Simpson County

Emergency services

Simpson General Hospital Cah

Critical Access Hospitals · Mendenhall, MS

OwnershipVoluntary non-profit - Private

CMS Certification Number251317

Location1842 Simpson Highway 149Mendenhall, MS 39114 · Simpson County

Emergency services

Covington County Hospital Cah

Critical Access Hospitals · Collins, MS

OwnershipGovernment - Local

CMS Certification Number251325

Location701 South Holly AvenueCollins, MS 39428 · Covington County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 39440 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

$120.41 typical visit price

range $51.65 – $159.18

Typical copayment $30.10 (range $12.91 – $39.79)

Most-billed visit code 99204

Established Patient

$64.96 typical visit price

range $16.15 – $129.61

Typical copayment $16.24 (range $4.03 – $32.40)

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.

93.1/100

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

Scored through an Alternative Payment Model

Quality

83.08

Promoting Interoperability

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.

CYNTHIA LYNN BEAN

Nurse Practitioner