Dr. Keith Atassi, MD

  • Hobart, IN
  • Interventional cardiologist
NPI1336160753PAC ID1951499706
Medicare services, 2024
7,413
Medicare patients, 2024
2,074
Part D claims, 2024
13,800
Hospital affiliations
6
Industry payments
$74,144
Practice address
1500 S Lake Park Ave, Hobart, IN 46342
Practice phone
Call (219) 942-0551
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

St Mary Medical Center (IN)

Hobart, Indiana

See all 11 affiliations

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Dr. Keith Atassi is an interventional cardiologist in Hobart, Indiana

Dr. Atassi practices at St Mary Medical Center (IN) in Hobart, Indiana.

Dr. Atassi's NPI, 1336160753, was assigned on July 21, 2006. Dr. Atassi graduated from Damascus University Faculty of Medicine in 1980. Dr. Atassi's Indiana license number on file is 01038771A.

NPI and contact details
Medicare PAC ID
1951499706
NPI enumeration date
July 21, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(219) 942-0551
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
72
Medical school graduation
1980

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Keith Atassi practices at St Mary Medical Center (IN) in Hobart, Indiana

Dr. Atassi's primary practice is St Mary Medical Center (IN), at 1500 S Lake Park Ave, Hobart, IN 46342 in Lake County. The practice phone is (219) 942-0551.

  • St Mary Medical Center (IN)
    1500 S Lake Park Ave, Hobart, IN 46342 · Lake CountyPhone(219) 942-0551

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Keith Atassi is affiliated with 9 sites of care and 2 medical groups

Dr. Atassi's primary practice is St Mary Medical Center (IN) in Hobart, Indiana. Dr. Atassi is also affiliated with St. Mary Medical Center. The medical group on file is Powers Health Medical Group. Dmand AI also links Dr. Atassi to 5 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.

See all 11 affiliations for Dr. Atassi

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Keith Atassi's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Atassi practices, 8 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
St Mary Medical Center (IN)Available with a free account
+8 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Keith Atassi is one of 151 interventional cardiologists in Indiana

Interventional cardiology is Dr. Atassi's primary specialty in the NPI Registry, under taxonomy code 207RI0011X. Dr. Atassi is board certified in cardiovascular disease by the American Board of Internal Medicine. Dr. Atassi has a license on file in Indiana.

Specialties and state licenses

  • Interventional cardiology, IndianaPrimaryLicense 01038771A · 1990 to 2025 · taxonomy 207RI0011X

Clinical focus

Dmand AI lists aneurysm, angioplasty, atrial fibrillation and flutter, cardiac arrhythmia, cardiac catheterization, cardiomyopathy, cerebrovascular disease and chronic hypertension among the conditions Dr. Atassi treats.

Interventional cardiologists near Dr. Atassi

Counts of interventional cardiologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Keith Atassi billed Medicare for 7,413 services in 2024

CMS data shows 7,413 Medicare services from Dr. Atassi across 38 procedure codes in 2024, for 2,074 Medicare patients. Medicare paid $336,699 for them.

Medicare services, 20247,413
Medicare patients2,074
Paid by Medicare$336,699
Procedure codes38

Dr. Atassi's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Tests and treatments
2023: 2,8952024: 3,50521%
Office and hospital visits
2023: 2,4852024: 2,3864%
Other services
2023: 02024: 1,254
Imaging
2023: 2362024: 2412%
Surgery
2023: 582024: 2753%

Where Dr. Atassi's Medicare services took place, 2024

  • In an office5,05368%
  • In a facility2,36032%

Dr. Atassi compared with the Indiana median for interventional cardiologists, 2024

  • Dr. Atassi
  • Indiana median
Medicare services
7,413vs 1,6004.6 times
Medicare patients
2,074vs 8252.5 times
Part D claims
13,450vs 3,6783.7 times

Medians across 152 interventional cardiologists in Indiana with Dmand AI profiles that report each measure.

Dr. Atassi's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Atassi

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Keith Atassi treated 2,074 Medicare patients in 2024, average age 75

CMS counts 2,074 Medicare patients who saw Dr. Atassi in 2024. The largest group is 65 to 74, with 803 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.67, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Atassi's median patient age at 74, with 49% women.

Medicare patients, 20242,074
Average age75
Average risk score1.67
Also on Medicaid12%

Dr. Atassi's Medicare patients by age, 2024

Dr. Atassi's Medicare patients by sex, 2024

  • Women1,10853%
  • Men96647%

Chronic conditions among Dr. Atassi's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis54%
  4. Ischemic heart disease48%
  5. Diabetes39%
  6. Chronic kidney disease34%
  7. Atrial fibrillation33%
  8. Heart failure30%

Share of Medicare patients with each condition. A patient can have several.

Dr. Atassi's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women49%
  • Men50%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Keith Atassi wrote 13,800 Medicare Part D claims in 2024

In 2024, Dr. Atassi wrote 13,800 Medicare Part D claims for 1,396 patients. 90% of them were for generic drugs. CMS names the drug for 13,450 of them, across 85 drugs with 11 or more claims each, at $1,438,150 in total drug cost. In 2023, CMS named 13,642 claims across 83 drugs.

Part D claims, 202413,800
Drugs named by CMS85
Total drug cost$1.4M
Part D patients1,396

Dr. Atassi's Part D claims by kind of drug, 2024

  • Generic12,389 claims90%
  • Brand-name1,411 claims10%

Dr. Atassi's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Atassi's Part D claims, 2024

  • Antibiotics0%36 of 13,800 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 13,6422024: 13,4501%

Drugs named by CMS: 85 in 2024, 83 in 2023.

See all prescribing by Dr. Atassi

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Keith Atassi ranks in the 78th percentile for coronary angioplasty and stenting in Medicare

Dr. Atassi accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 42 procedures of coronary angioplasty and stenting by Dr. Atassi, more than 78% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Atassi ranks in Medicare procedure volume

Coronary angioplasty and stenting
78th percentile42 procedures
Pacemaker insertion or repair
62nd percentile11 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Leg revascularization (restoring blood flow): 1 to 10 procedures (CMS shows small counts as a range)

Varicose vein removal: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)

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Dr. Keith Atassi received $74,144 in industry payments from 2016 to 2025

CMS Open Payments shows 1,201 general payments to Dr. Atassi from 62 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 48% of the total. Amgen Inc. paid the most, $23,652.

General payments to Dr. Atassi by program year, 2016 to 2025

General payments to Dr. Atassi by kind, 2016 to 2025

$74.1Kin total
  • Speaker and faculty fees$35,68548%
  • Food and beverage$28,83539%
  • Travel and lodging$8,75712%
  • Consulting fees$6681%
  • Education$1980%

Companies that paid Dr. Atassi the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Atassi

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Keith Atassi has 1 award and honors on record

Dmand AI lists 1 award for Dr. Atassi.

Awards and honors for Dr. Atassi

  1. Undated
    • ACC Fellow

Source: Dmand AI Professional Profile Data

Dr. Keith Atassi graduated from Damascus University Faculty of Medicine

Dr. Atassi graduated from Damascus University Faculty of Medicine in 1980. Dr. Atassi is a member of ACC.

  1. Medical schoolDamascus University Faculty of Medicine
  2. Board certified in cardiovascular diseaseAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine
  4. Board certified in interventional cardiologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Keith Atassi accepts plans from 16 insurance carriers

Dr. Atassi is in network with 16 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

Plan types Dr. Atassi accepts, by number of carriers

  1. Medicare10
  2. PPO10
  3. HMO9
  4. POS7
  5. EPO5

Source: Dmand AI Insurance Network Data

Sources for Dr. Keith Atassi's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Keith Atassi

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Keith Atassi's NPI number?

Dr. Keith Atassi's NPI number is 1336160753. It was assigned on July 21, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Keith Atassi?

Dr. Keith Atassi is an interventional cardiologist in Hobart, Indiana. The primary specialty in the NPI Registry is Interventional Cardiology Physician (taxonomy code 207RI0011X).

Where does Dr. Keith Atassi practice?

Dr. Atassi practices at 1500 S Lake Park Ave, Hobart, IN 46342. Dr. Atassi's primary practice is St Mary Medical Center (IN) in Hobart, Indiana. Dmand AI also links Dr. Atassi to 5 hospitals, 2 group practices and clinics and 1 medical group.

What is Dr. Keith Atassi's office phone number?

The practice phone on file for Dr. Atassi is (219) 942-0551.

What is Dr. Keith Atassi's medical license number?

Dr. Atassi's Indiana license number on file is 01038771A.

Which hospitals is Dr. Keith Atassi affiliated with?

Dr. Atassi is affiliated with St. Mary Medical Center. Dmand AI links Dr. Atassi to 5 more hospitals.

What medical group is Dr. Keith Atassi part of?

Dr. Atassi is linked to Powers Health Medical Group. Dmand AI links Dr. Atassi to 1 more medical group.

Does Dr. Keith Atassi accept Medicare?

Yes. CMS data shows Dr. Atassi billed Medicare for 7,413 services in 2024, and Dr. Atassi accepts Medicare assignment.

How many Medicare patients does Dr. Keith Atassi see?

CMS counts 2,074 Medicare patients who saw Dr. Atassi in 2024, with an average age of 75.

Is Dr. Keith Atassi board certified?

Yes. Dr. Atassi is board certified in cardiovascular disease by the American Board of Internal Medicine.

Show 6 more questionsShow fewer questions

What services does Dr. Keith Atassi bill to Medicare?

In 2024, Dr. Atassi's most billed Medicare services were office visit, established patient (99214), medicare service (G2211) and heart test or procedure (93010).

Where did Dr. Keith Atassi go to medical school?

Dr. Atassi graduated from Damascus University Faculty of Medicine in 1980.

What drugs does Dr. Keith Atassi prescribe most?

In 2024 Medicare Part D data, Dr. Atassi's most prescribed drugs by claims were Metoprolol Tartrate, Atorvastatin Calcium and Amlodipine Besylate.

Has Dr. Keith Atassi received payments from drug or device companies?

CMS Open Payments shows $74,144 in general payments to Dr. Atassi from 62 companies from 2016 to 2025. The largest total came from Amgen Inc.

How long has Dr. Keith Atassi been practicing?

Dr. Atassi graduated from medical school in 1980, 46 years ago.

What insurance does Dr. Keith Atassi accept?

Dr. Atassi is in network with 16 carriers, including Aetna, Elevance and Excellus BlueCross BlueShield. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.

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