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

DR. GERARD OHANNES OGHLAKIAN MD
NPI 1679779979
Internal Medicine - Advanced Heart Failure and Transplant Cardiology in Springfield, MO

Q: What is Gerard Oghlakian's NPI number?

The NPI number for Gerard Oghlakian is 1679779979. It was assigned to this individual provider in the NPPES registry on June 23, 2007.

Q: What is Gerard Oghlakian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Advanced Heart Failure and Transplant Cardiology, with taxonomy code 207RA0001X.

Q: When was this NPI record last updated?

The NPPES record for Gerard Oghlakian was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 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 June 23, 2007PECOS EnrolledAccepts Medicare Assignment

1235 E CHEROKEE ST STE 2C, SPRINGFIELD, MO 65804(417) 820-3911(417) 820-3924 Get Directions Write a Review

NPPES record last updated: September 29, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 29, 2026, Nov 28, 2017 (2 updates tracked since 2017).

On this page

About Dr. Gerard Ohannes Oghlakian Md NPPES

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

DR. GERARD OHANNES OGHLAKIAN MD (NPI 1679779979) is an individual advanced heart failure and transplant cardiology provider in Springfield, Missouri, licensed in Missouri (2011006602) and active in the NPI registry since June 2007. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Lebanon, and maintains a secondary practice location in Branson.

NPPES Registry Identity

NPI1679779979

Entity TypeIndividualMale

Primary Taxonomy207RA0001X

Provider Legal NameDR. GERARD OHANNES OGHLAKIANCredential: MD

Location Address1235 E CHEROKEE ST STE 2CSpringfield, MO 65804-2203

Mailing Address1235 E Cherokee St Ste 2cSpringfield, MO 65804-2203 · (417) 820-3911 · Fax (417) 820-3924

Phone(417) 820-3911

Fax(417) 820-3924

Sole ProprietorNo

Medical School CMSOtherGraduated 2004

Enumeration DateJune 23, 2007

Last NPPES UpdateSeptember 29, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 29, 2026

✔ NPI 1679779979 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Advanced Heart Failure and Transplant CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code207RA0001X

License✔ Licensed in MO · 2011006602

Definition

Specialists in Advanced Heart Failure and Transplant Cardiology would participate in the inpatient and outpatient management of patients with advanced heart failure across the spectrum from consideration for high-risk cardiac surgery, cardiac transplantation, or mechanical circulatory support, to pre-and post-operative evaluation and management of patients with cardiac transplants and mechanical support devices, and end-of-life care for patients with end-stage heart failure.

Also ListedInternal Medicine · Cardiovascular DiseaseTaxonomy 207RC0000X · License 2011006602 (MO)

1235 E CHEROKEE ST STE 2C, Springfield, MO 65804

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Secondary Practice Location 1

Location 1448 State Highway 248 Ste 180Branson, MO 65616-3725 · Phone (417) 820-3911

Other Identifiers 4

OtherP00954926MO · Rr Mcr

Medicaid1679779979MO

Medicaid188964001AR

Other431560263MO · Tricare

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 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

Dr. Gerard Ohannes Oghlakian 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 ID1456529981

PECOS Enrollment IDI20110727000363

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 Gerard Oghlakian reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Mercy Clinic Springfield Communities

1.7 mi

Family Medicine

3231 S NATIONAL AVE STE 220
Springfield, MO 65807

Reassigned Medicare billing, Missouri enrollment
1,487 clinicians in this Medicare group

NPI 1245277631 (855) 420-7900

Mercy Hospital Aurora

28 mi

Critical Access

500 PORTER AVE
Aurora, MO 65605

Reassigned Medicare billing, Missouri enrollment
171 clinicians in this Medicare group

NPI 1467543090 (417) 678-2122

Mercy Hospital Cassville

48 mi

Critical Access

94 MAIN ST
Cassville, MO 65625

Reassigned Medicare billing, Missouri enrollment
151 clinicians in this Medicare group

NPI 1285676932 (417) 847-6000

Mercy St. Francis Hospital

88 mi

Critical Access

100 WEST HIGHWAY 60
Mountain View, MO 65548

Reassigned Medicare billing, Missouri enrollment
126 clinicians in this Medicare group

NPI 1023053477 (417) 934-7000

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 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.

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.

959 services928 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.

287 services283 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.

200 services200 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.

188 services188 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.

187 services187 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.

138 services127 patients

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

126 services112 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.

113 services66 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.

103 services103 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.

91 services87 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.

78 services76 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.

75 services69 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.

67 services65 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.

67 services30 patients

3d ultrasound imaging of heart for evaluation of heart structure performed during ultrasound imaging of congenital heart defects 93319

3D ultrasound imaging of the heart is a non-invasive procedure that uses sound waves to create a detailed three-dimensional image of your heart. This helps in evaluating the heart's structure, particularly for diagnosing congenital heart defects. It is safe, painless and provides valuable information about your heart health.

60 services58 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.

53 services53 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.

47 services47 patients

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

42 services42 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.

37 services37 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.

36 services36 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.

26 services26 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.

25 services25 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.

19 services19 patients

Nuclear medicine study of heart pumping function by labeling red blood cells with measurement of internal blood volume ejected with every beat over multiple cycles 78472

This procedure, known as a nuclear medicine study, examines your heart's function. It involves marking red blood cells and measuring the volume of blood your heart pumps with each beat. It's a safe, non-invasive way to assess how well your heart is working.

13 services13 patients

Hospital Affiliations CMS Care Compare 5

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

Mercy Hospital Lebanon

Acute Care Hospitals · Lebanon, MO

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number260059

Location100 Hospital DriveLebanon, MO 65536 · Laclede County

Emergency services Birthing friendly

Mercy Hospital Springfield

Acute Care Hospitals · Springfield, MO

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number260065

Location1235 E CherokeeSpringfield, MO 65804 · Greene County

Emergency services Birthing friendly

Mercy Hospital Aurora

Critical Access Hospitals · Aurora, MO

OwnershipVoluntary non-profit - Church

CMS Certification Number261316

Location500 Porter AvenueAurora, MO 65605 · Lawrence County

Emergency services Birthing friendly

Mercy Hospital - Cassville

Critical Access Hospitals · Cassville, MO

OwnershipVoluntary non-profit - Church

CMS Certification Number261317

Location94 Main StreetCassville, MO 65625 · Barry County

Emergency services

Mercy St Francis Hospital

Critical Access Hospitals · Mountain View, MO

OwnershipVoluntary non-profit - Private

CMS Certification Number261335

Location100 West Highway 60, PO Box 82Mountain View, MO 65548 · Howell County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 65804 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

$121.96 typical visit price

range $52.28 – $161.24

Typical copayment $30.49 (range $13.07 – $40.31)

Most-billed visit code 99204

Established Patient

$93.24 typical visit price

range $16.30 – $131.05

Typical copayment $23.31 (range $4.07 – $32.76)

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.

Referred Medical Equipment & Supplies CMS DME claims

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

Automatic external defibrillator, with integrated electrocardiogram analysis, garment type K0606

DME-Other DME · category DE013N

1 supplier11 claims11 services$2,155.54 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 7

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

DANNY LEE GARTON FNP

Nurse Practitioner (Family)