KEITH JOHN KASSABIAN
NPI 1083618003
Internal Medicine - Interventional Cardiology in Oklahoma City, OK

Q: What is Keith Kassabian's NPI number?

The NPI number for Keith Kassabian is 1083618003. It was assigned to this individual provider in the NPPES registry on June 8, 2005.

Q: What is Keith Kassabian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Q: When was this NPI record last updated?

The NPPES record for Keith Kassabian was last updated on October 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 June 08, 2005PECOS EnrolledAccepts Medicare Assignment

99.47/100

CMS Quality Rating

608 NW 9TH ST, SUITE 2200, OKLAHOMA CITY, OK 73102(405) 231-3737(405) 272-6144 Get Directions Write a Review

NPPES record last updated: October 20, 2020. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Oct 20, 2020, Jan 21, 2016 (2 updates tracked since 2016).

On this page

About Keith John Kassabian NPPES

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

KEITH JOHN KASSABIAN (NPI 1083618003) is an individual interventional cardiology provider in Oklahoma City, Oklahoma, licensed in Oklahoma (16576) and active in the NPI registry since June 2005. He is enrolled in Medicare PECOS, is affiliated with Ssm Health St Anthony Hospital - Oklahoma City, and is a graduate of Virginia Commonwealth University, School Of Medicine (1981).

NPPES Registry Identity

NPI1083618003

Entity TypeIndividualMale

Primary Taxonomy207RI0011X

Provider Legal NameKEITH JOHN KASSABIAN

Location Address608 NW 9TH ST, SUITE 2200Oklahoma City, OK 73102-1068

Mailing Address608 Nw 9th St, Suite 2200Oklahoma City, OK 73102-1068 · (405) 231-3737 · Fax (405) 272-6144

Phone(405) 231-3737

Fax(405) 272-6144

Sole ProprietorNo

Medical School CMSVirginia Commonwealth University, School Of MedicineGraduated 1981

Enumeration DateJune 8, 2005

Last NPPES UpdateOctober 20, 20202 updates tracked since enumeration

NPPES CertifiedOctober 20, 2020

✔ NPI 1083618003 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Interventional CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RI0011X

License✔ Licensed in OK · 16576

Definition

An area of medicine within the subspecialty of cardiology, which uses specialized imaging and other diagnostic techniques to evaluate blood flow and pressure in the coronary arteries and chambers of the heart and uses technical procedures and medications to treat abnormalities that impair the function of the cardiovascular system.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 16576 (OK)

608 NW 9TH ST, Oklahoma City, OK 73102

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan 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

Keith John Kassabian 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 ID6406913474

PECOS Enrollment IDI20090318000241

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

Ssm Health Care Of Oklahoma, Inc

0.1 mi

Nurse Anesthetist, Certified Registered

1000 N LEE AVE
Oklahoma City, OK 73102

Reassigned Medicare billing, Oklahoma enrollment
212 clinicians in this Medicare group

NPI 1033283932 (405) 272-7000

Saints Medical Group, LLC

4.2 mi

Family Medicine

777 NW 63RD ST STE 452
Oklahoma City, OK 73116

Reassigned Medicare billing, Oklahoma enrollment
507 clinicians in this Medicare group

NPI 1437195922 (405) 231-3857

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 34

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.

592 services406 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.

555 services306 patients

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

450 services244 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.

350 services338 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.

159 services43 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.

134 services64 patients

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

109 services103 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.

88 services86 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.

88 services86 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.

70 services68 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.

67 services67 patients

Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248

This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.

59 services59 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.

51 services44 patients

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

37 services33 patients

Insertion of tube in left lower heart chamber and coronary artery for diagnosis with review by radiologist 93458

This procedure involves placing a tube into your left lower heart chamber and coronary artery. It helps doctors diagnose heart conditions by allowing them to view these areas in detail. A radiologist will review the images to ensure accurate diagnosis.

37 services37 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.

35 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.

34 services34 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.

33 services13 patients

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

22 services22 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

19 services19 patients

Insertion of stents with balloon dilation of coronary artery or branch, single artery or branch 92928

This procedure involves placing a small, mesh tube (stent) in your coronary artery to keep it open. A balloon is used to expand the stent and artery, improving blood flow to your heart. It's typically done for a single artery or branch.

18 services17 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.

18 services18 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.

18 services12 patients

Ultrasound study of arm and leg arteries 93922

18 services16 patients

Evaluation of single, dual, multiple lead or leadless pacemaker system 93288

An evaluation of a pacemaker system examines how well your heart device is working. Single, dual, multiple lead, or leadless refers to the wires that deliver electrical pulses from the pacemaker to your heart. This check ensures your heart is receiving the right amount of support from the device.

17 services14 patients

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

16 services16 patients

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

16 services16 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

16 services16 patients

Ultrasound of heart with continuous electrocardiogram (ecg) during rest, exercise and/or drug induced stress with review and report 93351

This procedure involves using ultrasound technology to create images of your heart while you rest, exercise, or undergo drug-induced stress. An ECG continuously monitors your heart's electrical activity. It helps doctors assess heart health and function.

15 services15 patients

Injection of x-ray contrast during ultrasound of heart 93352

This procedure involves injecting a special dye into your bloodstream during a heart ultrasound. This dye, visible on X-rays, helps create clearer images of your heart's structure and function. It's safe and assists in diagnosing heart conditions accurately.

15 services15 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

14 services12 patients

Insertion of tube in right and left heart chambers and coronary artery for diagnosis with review by radiologist 93460

This procedure involves placing a tube into the heart chambers and coronary artery. It helps diagnose heart conditions. A radiologist reviews the images obtained. It's a standard, safe procedure performed by experienced medical professionals.

12 services12 patients

Injection for imaging of aorta above heart valve with review by radiologist 93567

This procedure involves injecting a special dye into your bloodstream to enhance the visibility of your aorta on imaging scans. A radiologist then reviews these images to assess the health of your aorta, which is the main artery from your heart.

12 services12 patients

Ultrasound of both sides of head and neck blood flow 93880

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.

Ssm Health St Anthony Hospital - Oklahoma City

Acute Care Hospitals · Oklahoma City, OK

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number370037

Location1000 North Lee AvenueOklahoma City, OK 73101 · Oklahoma County

Emergency services Birthing friendly

Ssm Health St Anthony Hospital - Shawnee

Acute Care Hospitals · Shawnee, OK

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number370149

Location1102 W MacarthurShawnee, OK 74804 · Pottawatomie County

Emergency services Birthing friendly

Purcell Municipal Hospital

Acute Care Hospitals · Purcell, OK

OwnershipGovernment - Local

CMS Certification Number370158

Location2301 N 9th AvePurcell, OK 73080 · Mcclain County

Emergency services

Weatherford Regional Hospital, Inc Of Weatherford

Critical Access Hospitals · Weatherford, OK

OwnershipGovernment - Hospital District or Authority

CMS Certification Number371323

Location3701 E MainWeatherford, OK 73096 · Custer County

Emergency services

Newman Memorial Hospital

Critical Access Hospitals · Shattuck, OK

OwnershipGovernment - Local

CMS Certification Number371336

Location905 South Main StreetShattuck, OK 73858 · Ellis County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73102 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

$123.06 typical visit price

range $53.00 – $162.61

Typical copayment $30.76 (range $13.25 – $40.65)

Most-billed visit code 99204

Established Patient

$94.27 typical visit price

range $16.68 – $132.40

Typical copayment $23.56 (range $4.17 – $33.10)

Most-billed visit code 99214

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.

99.47/100

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

Scored as part of a group practice

Quality

92.67

Promoting Interoperability

100

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 2

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 supplier12 claims12 services$14.03 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 suppliers19 claims19 services$79.58 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.

SSM HEALTHCARE OF OKLAHOMA INC

Obstetrics & Gynecology

608 NW 9TH ST, SUITE 2100
OKLAHOMA CITY, OK 73102

Oklahoma County (405) 272-8498

SCOTT K LUCAS, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery)

608 NW 9TH ST, STE 2110
OKLAHOMA CITY, OK 73102

Oklahoma County (405) 310-3028

SAINTS MEDICAL GROUP, LLC

Family Medicine

608 NW 9TH ST, SUITE 1100
OKLAHOMA CITY, OK 73102

Oklahoma County (405) 231-3000

SSM HEALTHCARE OF OKLAHOMA, INC

Surgery (Vascular Surgery)

608 NW 9TH ST, SUITE 5204
OKLAHOMA CITY, OK 73102

Oklahoma County (405) 232-2178

SSM HEALTHCARE OF OK, INC

Internal Medicine (Pulmonary Disease)

608 NW 9TH ST, SUITE 6200
OKLAHOMA CITY, OK 73102

Oklahoma County (405) 272-7677

SSM HEALTHCARE OF OK, INC

Internal Medicine (Interventional Cardiology)

608 NW 9TH ST, SUITE 4000
OKLAHOMA CITY, OK 73102

Oklahoma County (405) 272-8383

JOSEPH D PETTY

Social Worker (Clinical)

608 NW 9TH ST, SUITE 1100
OKLAHOMA CITY, OK 73102

Oklahoma County (405) 231-3000

SSM HEALTHCARE OF OK, INC

Internal Medicine (Pulmonary Disease)

608 NW 9TH ST, SUITE 6110
OKLAHOMA CITY, OK 73102

Oklahoma County (405) 272-6909

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 Keith Kassabian's NPI number?

The NPI number for Keith Kassabian is 1083618003. It was assigned to this individual provider in the NPPES registry on June 8, 2005.

Where is Keith Kassabian located?

Keith Kassabian practices at 608 NW 9th St Suite 2200, Oklahoma City, OK 73102. The listed phone number is (405) 231-3737.

What is Keith Kassabian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.

Is Keith Kassabian enrolled in Medicare?

Yes. Keith Kassabian 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 Keith Kassabian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Keith Kassabian reassigns Medicare benefits to 2 organizations: Ssm Health Care Of Oklahoma, Inc (Oklahoma City, OK) and Saints Medical Group, LLC (Oklahoma City, OK). 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 Keith Kassabian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Keith Kassabian accept?

Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Keith Kassabian 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 Keith Kassabian affiliated with any hospitals?

According to CMS data, Keith Kassabian is affiliated with Ssm Health St Anthony Hospital - Oklahoma City, Ssm Health St Anthony Hospital - Shawnee, Purcell Municipal Hospital, Weatherford Regional Hospital, Inc Of Weatherford and Newman Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Keith Kassabian was last updated on October 20, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.