DR. OSLER JAY JUSTO GUZON MD
NPI 1285683888
Internal Medicine - Cardiovascular Disease in Saint Louis, MO

Q: What is Osler Jay Guzon's NPI number?

The NPI number for Osler Jay Guzon is 1285683888. It was assigned to this individual provider in the NPPES registry on May 9, 2006.

Q: What is Osler Jay Guzon'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 Osler Jay Guzon was last updated on August 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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 May 09, 2006PECOS EnrolledAccepts Medicare Assignment

5201 MID AMERICA PLZ, DIV IM CARDIOLOGY, STE 2300, SAINT LOUIS, MO 63129(314) 362-1291(314) 362-4278 Get Directions Write a Review

NPPES record last updated: August 13, 2025. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 13, 2025, May 23, 2023, Apr 14, 2023 and 1 more (4 updates tracked since 2022).

On this page

About Dr. Osler Jay Justo Guzon Md NPPES

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

DR. OSLER JAY JUSTO GUZON MD (NPI 1285683888) is an individual cardiovascular disease provider in Saint Louis, Missouri, licensed in Missouri (2005013486) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and is a graduate of University Of Missouri, Kansas City, School Of Medicine (2001).

NPPES Registry Identity

NPI1285683888

Entity TypeIndividualMale

Primary Taxonomy207RC0000X

Provider Legal NameDR. OSLER JAY JUSTO GUZONCredential: MD

Location Address5201 MID AMERICA PLZ, DIV IM CARDIOLOGY, STE 2300Saint Louis, MO 63129-0002

Mailing AddressPo Box 7412011Chicago, IL 60674-2011 · (314) 362-1291 · Fax (314) 362-4278

Phone(314) 362-1291

Fax(314) 362-4278

Sole ProprietorNo

Medical School CMSUniversity Of Missouri, Kansas City, School Of MedicineGraduated 2001

Enumeration DateMay 9, 2006

Last NPPES UpdateAugust 13, 20254 updates tracked since enumeration

NPPES CertifiedMay 23, 2023

✔ NPI 1285683888 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 MO · 2005013486

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 2005013486 (MO)

5201 MID AMERICA PLZ, Saint Louis, MO 63129

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Other Identifiers 1

Medicaid204403802MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City, Cox HealthPlans.Insurance ›

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. Osler Jay Justo Guzon 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 ID1850467721

PECOS Enrollment IDI20121008000439

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 24

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.

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.

357 services208 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.

313 services187 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.

104 services100 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.

99 services99 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.

98 services98 patients

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

81 services49 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.

65 services65 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.

49 services49 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.

47 services22 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.

36 services36 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.

35 services35 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.

33 services32 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

32 services31 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.

26 services25 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.

26 services25 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.

24 services23 patients

Ultrasound study of arm and leg arteries 93922

An ultrasound study of arm and leg arteries is a non-invasive procedure that uses sound waves to create images of your arteries. It helps in checking blood flow, identifying blockages, or detecting other abnormalities in your arteries.

24 services24 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

20 services20 patients

Programming of dual lead pacemaker system 93280

Programming of a dual lead pacemaker system is a procedure to adjust your heart's pacemaker settings. This process involves a small device, called a programmer, that communicates with your pacemaker to ensure it's working optimally for your heart's needs.

19 services16 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.

18 services17 patients

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

17 services17 patients

Insertion of pacemaker and upper and lower heart chamber electrode 33208

A pacemaker insertion is a procedure where a small device, called a pacemaker, is implanted under your skin. This device uses electrical pulses to prompt the heart to beat at a normal rate. Electrodes are placed in the upper and lower chambers of your heart to help regulate your heartbeat.

15 services15 patients

Electrocardiogram (ecg) 2-day continuous with review by health care professional 93227

An Electrocardiogram (ECG) is a test that checks your heart's activity. The 2-day continuous ECG records your heart's rhythm non-stop for 48 hours. It helps to detect irregularities that may not occur during a shorter test. A healthcare professional will review the results to identify any issues.

12 services12 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.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

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

Memorial Hospital

Acute Care Hospitals · Belleville, IL

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number140185

Location4500 Memorial DriveBelleville, IL 62226 · St. Clair County

Emergency services Birthing friendly

Barnes Jewish Hospital

Acute Care Hospitals · Saint Louis, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number260032

LocationOne Barnes-Jewish Hospital PlazaSaint Louis, MO 63110 · St. Louis City County

Emergency services Birthing friendly

Cox Medical Centers

Acute Care Hospitals · Springfield, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260040

Location3801 South National AvenueSpringfield, MO 65807 · Greene County

Emergency services Birthing friendly

Barnes-Jewish West County Hospital

Acute Care Hospitals · Creve Coeur, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260162

Location12634 Olive BoulevardCreve Coeur, MO 63141 · St. Louis County

Emergency services

Washington County Memorial Hospital

Critical Access Hospitals · Potosi, MO

OwnershipGovernment - Local

CMS Certification Number261308

Location300 Health WayPotosi, MO 63664 · Washington County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63129 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

$128.28 typical visit price

range $55.65 – $169.38

Typical copayment $32.07 (range $13.91 – $42.34)

Most-billed visit code 99204

Established Patient

$69.50 typical visit price

range $17.76 – $137.92

Typical copayment $17.37 (range $4.44 – $34.48)

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.

Referred Medical Equipment & Supplies CMS DME claims 3

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

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

1 supplier17 claims17 services$15.73 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

2 suppliers17 claims17 services$104.69 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$38.23 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.

DR. KOUSHIK KUMAR DAS MD

Internal Medicine (Gastroenterology)

5201 MID AMERICA PLZ, DIV IM GASTROENTEROLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 747-2066

DR. BRANDEN EDWARD YEE MD

Anesthesiology

5201 MID AMERICA PLZ, DEPT ANESTHESIOLOGY, STE 1300
SAINT LOUIS, MO 63129

St. Louis County (800) 862-9980

MR. RYAN J VALLO PA

Physician Assistant

5201 MID AMERICA PLZ, DEPT ORTHOPAEDIC SURG, STE 1500
SAINT LOUIS, MO 63129

St. Louis County (314) 514-3500

DR. OMAR HANI ELSAYED-ALI MD

Internal Medicine (Allergy & Immunology)

5201 MID AMERICA PLZ, DIV IM ALLERGY AND IMMUNOLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 996-8670

MS. SENADA FENELON AGNP

Nurse Practitioner (Gerontology)

5201 MID AMERICA PLZ, DIV IM RHEUMATOLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 286-2635

DR. ANGELA JOANN DEMETRULIAS OD

Optometrist

5201 MID AMERICA PLZ, DIV OPTHALMOLOGY, STE 2500
SAINT LOUIS, MO 63129

St. Louis County (314) 273-0020

DR. STEVEN A LAUTER MD

Internal Medicine (Rheumatology)

5201 MID AMERICA PLZ
SAINT LOUIS, MO 63129

St. Louis County (314) 514-3500

DR. NICOLE MARIE DUCHARME DO

Internal Medicine (Endocrinology, Diabetes & Metabolism)

5201 MID AMERICA PLZ, DIV IM ENDOCRINOLOGY
SAINT LOUIS, MO 63129

St. Louis County (314) 362-3500

MS. KAREN KAY MOORE FNP

Nurse Practitioner (Family)

5201 MID AMERICA PLZ, DIV IM CARDIOLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 362-1291

MS. LINDA TRINH BOUCHER FNP

Nurse Practitioner (Family)

5201 MID AMERICA PLZ, DIV IM CARDIOLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 362-1291

DR. SUDHIR K JAIN MD

Internal Medicine (Cardiovascular Disease)

5201 MID AMERICA PLZ, DIV IM CARDIOLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 362-1291

MS. HELEN M WIJEWEERA ANP

Nurse Practitioner (Adult Health)

5201 MID AMERICA PLZ, DIV IM ENDOCRINOLOGY
SAINT LOUIS, MO 63129

St. Louis County (314) 362-3500

DR. TIFFANY BIASON DY MD

Internal Medicine (Allergy & Immunology)

5201 MID AMERICA PLZ, DIV IM ALLERGY AND IMMUNOLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 996-8670

DR. RICHARD H WIEDER MD

Ophthalmology

5201 MID AMERICA PLZ, DEPT OPTHALMOLOGY, STE 2500
SAINT LOUIS, MO 63129

St. Louis County (314) 273-0020

DR. KATHLEEN MARY LOWE MD

Internal Medicine (Endocrinology, Diabetes & Metabolism)

5201 MID AMERICA PLZ, DIV IM BONE AND MINERAL, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 454-7775

WASHINGTON UNIVERSITY

Durable Medical Equipment & Medical Supplies

5201 MID AMERICA PLZ, SUITE 1500
SAINT LOUIS, MO 63129

St. Louis County (314) 286-2900

DR. JENNIFER MARIE MONROY MD

Internal Medicine (Allergy & Immunology)

5201 MID AMERICA PLZ, DIV IM ALLERGY AND IMMUNOLOGY, STE 2300
SAINT LOUIS, MO 63129

St. Louis County (314) 996-8670

MS. CHRISTINA M LYERLA CRNA

Nurse Anesthetist, Certified Registered

5201 MID AMERICA PLZ, DEPT ANESTHESIOLOGY, STE 1300
SAINT LOUIS, MO 63129

St. Louis County (800) 862-9980

DR. CECILIA SUNGMIN LEE MD

Ophthalmology (Retina Specialist)

5201 MID AMERICA PLZ, DEPT OPTHALMOLOGY, STE 2500
SAINT LOUIS, MO 63129

St. Louis County (314) 273-0020

PROREHAB PC

Physical Therapist

5201 MID AMERICA PLZ, SUITE 2600
SAINT LOUIS, MO 63129

St. Louis County (314) 487-7000

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 Osler Jay Guzon's NPI number?

The NPI number for Osler Jay Guzon is 1285683888. It was assigned to this individual provider in the NPPES registry on May 9, 2006.

Where is Osler Jay Guzon located?

Osler Jay Guzon practices at 5201 Mid America Plz Div Im Cardiology, Ste 2300, Saint Louis, MO 63129. The listed phone number is (314) 362-1291.

What is Osler Jay Guzon's specialty?

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

Is Osler Jay Guzon enrolled in Medicare?

Yes. Osler Jay Guzon 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.

What insurance does Osler Jay Guzon accept?

Health plans from Anthem Blue Cross and Blue Shield, Blue Cross and Blue Shield of Kansas City and Cox HealthPlans list Osler Jay Guzon 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 Osler Jay Guzon affiliated with any hospitals?

According to CMS data, Osler Jay Guzon is affiliated with Memorial Hospital, Barnes Jewish Hospital, Cox Medical Centers, Barnes-Jewish West County Hospital and Washington County Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Osler Jay Guzon was last updated on August 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.