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

DR. IEON LLOYD DAWSON M.D.,F.A.C.C.
NPI 1790776961
Internal Medicine - Cardiovascular Disease in Clinton, MD

Q: What is Ieon Dawson's NPI number?

The NPI number for Ieon Dawson is 1790776961. It was assigned to this individual provider in the NPPES registry on November 4, 2005.

Q: What is Ieon Dawson'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 Ieon Dawson was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 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 November 04, 2005PECOS Enrolled

95.59/100

CMS Quality Rating

7700 OLD BRANCH AVE, SUITE B 205, CLINTON, MD 20735(301) 877-4933(301) 877-6963 Get Directions Write a Review

NPPES record last updated: July 15, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Ieon Lloyd Dawson M.d.,f.a.c.c. NPPES

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

DR. IEON LLOYD DAWSON M.D.,F.A.C.C. (NPI 1790776961) is an individual cardiovascular disease provider in Clinton, Maryland, licensed in Maryland (D0047553) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, is affiliated with Medstar Southern Maryland Hospital Center, and is a graduate of Other (1991).

NPPES Registry Identity

NPI1790776961

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameDR. IEON LLOYD DAWSONCredential: M.D.,F.A.C.C.

Location Address7700 OLD BRANCH AVE, SUITE B 205Clinton, MD 20735-1628

Mailing AddressPo Box 3786Crofton, MD 21114-3786 · (301) 877-4933 · Fax (301) 877-6963

Phone(301) 877-4933

Fax(301) 877-6963

Sole ProprietorYes

Medical School CMSOtherGraduated 1991

Enumeration DateNovember 4, 2005

Last NPPES UpdateJuly 15, 2026

NPPES CertifiedJuly 15, 2026

✔ NPI 1790776961 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RC0000X

License✔ Licensed in MD · D0047553

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.

Also ListedInternal MedicineTaxonomy 207R00000X · License D0047553 (MD)

7700 OLD BRANCH AVE, Clinton, MD 20735

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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Ieon Lloyd Dawson M.d.,f.a.c.c. 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 ID9436044229

PECOS Enrollment IDI20040219000873

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.

Areas of Expertise CMS Part B claims 18

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.

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.

1,336 services585 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.

648 services499 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.

242 services231 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.

190 services151 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.

84 services70 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.

74 services71 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.

72 services72 patients

Technetium tc-99m tetrofosmin, diagnostic, per study dose A9502

Technetium Tc-99m Tetrofosmin is a radiopharmaceutical used in diagnostic imaging. It helps highlight areas of concern in the heart by emitting signals captured by a special camera. This assists doctors in detecting heart conditions.

46 services45 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.

45 services45 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.

43 services27 patients

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

38 services37 patients

Electrocardiogram (ecg) up to 30 days continuous with review and report by health care professional 93228

An Electrocardiogram (ECG) is a non-invasive test that records the electrical signals in your heart. For up to 30 days, a small device will continuously monitor your heart's activity. A healthcare professional will then review the data and provide a report on your heart's function.

29 services28 patients

Electrocardiogram (ecg) up to 30 days continuous with transmission of patient triggered events with review and report by health care professional 93229

An Electrocardiogram (ECG) is a test that records your heart's electrical activity for up to 30 days. You trigger a transmission if you feel symptoms, which is then reviewed by a healthcare professional. The report helps diagnose heart conditions.

28 services27 patients

Transitional care management services for problem of high complexity 99496

Transitional care management services are designed to ensure a smooth transition from a hospital to home or another care setting for patients with complex health issues. These services include medication management, patient education, and coordination with healthcare providers.

27 services23 patients

Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days 93295

This procedure involves remotely monitoring your implantable defibrillator system, which can have single, dual, or multiple leads. Over a period of up to 90 days, the system's performance is evaluated to ensure it's working properly and providing the necessary heart rhythm support.

24 services12 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.

22 services15 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.

16 services16 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.

14 services14 patients

Hospital Affiliations CMS Care Compare

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

Medstar Southern Maryland Hospital Center

Acute Care Hospitals · Clinton, MD

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number210062

Location7503 Surratts RoadClinton, MD 20735 · Prince Georges County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20735 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

$147.85 typical visit price

range $65.18 – $194.86

Typical copayment $36.96 (range $16.29 – $48.71)

Most-billed visit code 99204

Established Patient

$80.66 typical visit price

range $21.40 – $158.88

Typical copayment $20.16 (range $5.35 – $39.72)

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.

95.59/100

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

Individually scored

Quality

75.28

Promoting Interoperability

Improvement Activities

Cost

83.47

Reported Quality Measures

Provide Patients Electronic Access to Their Health Information

100%869 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Arformoterol, inhalation solution, fda approved final product, non-compounded, administered through dme, unit dose form, 15 micrograms J7605

DME-Drugs Administered Through DME · category DG006N

1 supplier13 claims780 services$4.63 avg. paid by Medicare

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

DME-Drugs Administered Through DME · category DG006N

1 supplier13 claims975 services$0.03 avg. paid by Medicare

Budesonide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, up to 0.5 mg J7626

DME-Drugs Administered Through DME · category DG000N

1 supplier13 claims780 services$0.82 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

1 supplier13 claims13 services$26.08 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

MIND OVER MATTER HEALTH SERVICES

Community/Behavioral Health

7700 OLD BRANCH AVE, B204
CLINTON, MD 20735

Prince George's County (301) 868-0849

AFFINITY HOME CARE LLC

Hospice Care, Community Based

7700 OLD BRANCH AVE
CLINTON, MD 20735

Prince George's County (301) 856-7222

BRITTANY DELOATCH NCC, LGPC

Counselor

7700 OLD BRANCH AVE, D103
CLINTON, MD 20735

Prince George's County (877) 214-3668

DRS.FERNANDEZ AND SRIPRASERT P.A.

Family Medicine

7700 OLD BRANCH AVE, SUITE C102
CLINTON, MD 20735

Prince George's County (301) 868-8200

JOSEPH PETER CARUSO M.D.

Family Medicine (Adult Medicine)

7700 OLD BRANCH AVE, SUITE D-203
CLINTON, MD 20735

Prince George's County (301) 868-1220

METRO BEHAVIORAL HEALTH SERVICES, INC.

Clinic/Center (Mental Health (Including Community Mental Health Center))

7700 OLD BRANCH AVE
CLINTON, MD 20735

Prince George's County (703) 629-5768

SUMAN VARDAN M.D.

Internal Medicine

7700 OLD BRANCH AVE, SUITE D-203
CLINTON, MD 20735

Prince George's County (301) 868-1220

GLENN R. EDGECOMBE, MD,PC

Family Medicine

7700 OLD BRANCH AVE, B201
CLINTON, MD 20735

Prince George's County (301) 868-0150

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 Ieon Dawson's NPI number?

The NPI number for Ieon Dawson is 1790776961. It was assigned to this individual provider in the NPPES registry on November 4, 2005.

Where is Ieon Dawson located?

Ieon Dawson practices at 7700 Old Branch Ave Suite B 205, Clinton, MD 20735. The listed phone number is (301) 877-4933.

What is Ieon Dawson's specialty?

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

Is Ieon Dawson enrolled in Medicare?

Yes. Ieon Dawson 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.

Is Ieon Dawson affiliated with any hospitals?

According to CMS data, Ieon Dawson is affiliated with Medstar Southern Maryland Hospital Center.

When was this NPI record last updated?

The NPPES record for Ieon Dawson was last updated on July 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 26 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.