Dr. Leon Jay Frazin, MD

  • Chicago, IL
  • Cardiologist
NPI1174555916PAC ID6305840984
Medicare services, 2024
451
Medicare patients, 2024
348
Publications
11
MIPS score, 2024
93
Hospital affiliations
3
Practice address
820 S Damen Street, Chicago, IL 60612
Practice phone
Call (312) 569-8387
Professional email
Get professional email
Personal email
Get personal email
Mobile number
Get mobile number
Social profiles

Find Dr. Frazin's professional email, personal email and mobile number

Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.

View contacts for free

Dr. Leon Jay Frazin is a cardiologist in Chicago, Illinois

Dr. Frazin practices at Jesse Brown Department of Veterans Affairs Medical Center in Chicago, Illinois, part of Veterans Health Administration.

Dr. Frazin's NPI, 1174555916, was assigned on July 6, 2006. Dr. Frazin graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1962.

NPI and contact details
Medicare PAC ID
6305840984
NPI enumeration date
July 6, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(312) 569-8387
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
90
Medical school graduation
1962

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

Dr. Leon Jay Frazin practices at Jesse Brown Department of Veterans Affairs Medical Center in Chicago, Illinois

Dr. Frazin's primary practice is Jesse Brown Department of Veterans Affairs Medical Center, at 820 S Damen Street, Chicago, IL 60612 in Cook County. The practice phone is (312) 569-8387.

Source: Dmand AI Affiliation Data

Dr. Leon Jay Frazin is affiliated with 4 sites of care and 1 medical group

Dr. Frazin's primary practice is Jesse Brown Department of Veterans Affairs Medical Center in Chicago, Illinois, part of Veterans Health Administration. Dr. Frazin is also affiliated with University of Illinois Hospital. The medical group on file is University of Illinois Physicians Group (UIPG). Dmand AI also links Dr. Frazin to 1 more hospital and 1 physician office, each named with a free account. Dr. Frazin's employer is on file too: a hospital.

See all 5 affiliations for Dr. Frazin

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Leon Jay Frazin's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Frazin practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Jesse Brown Department of Veterans Affairs Medical CenterAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

See the EHR and IT leaders at every hospital where Dr. Frazin practices

Dmand AI maps EHR vendors, IT decision makers and buying committees across Veterans Health Administration and 6.2K+ hospitals, with verified contacts in the same login.

Dr. Leon Jay Frazin is one of 908 cardiologists in Illinois

Cardiovascular disease is Dr. Frazin's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Frazin is board certified in cardiovascular disease by the American Board of Internal Medicine. Dr. Frazin has a license on file in Illinois.

Specialties and state licenses

  • Cardiovascular disease, Illinoistaxonomy 207RC0000X

Cardiologists near Dr. Frazin

Counts of 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. Leon Jay Frazin billed Medicare for 451 services in 2024

CMS data shows 451 Medicare services from Dr. Frazin across 2 procedure codes in 2024, for 348 Medicare patients. Medicare paid $4,162 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024451
Medicare patients348
Paid by Medicare$4,162
Procedure codes2

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

  • 2023
  • 2024
Tests and treatments
2023: 4412024: 4381%
Office and hospital visits
2023: 282024: 1354%

Dr. Frazin compared with the Illinois median for cardiologists, 2024

  • Dr. Frazin
  • Illinois median
Medicare services
451vs 1,93677% below
Medicare patients
348vs 1,02366% below

Medians across 906 cardiologists in Illinois with Dmand AI profiles that report each measure.

Dr. Frazin'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. Frazin

Need commercial claims for Dr. Frazin?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Frazin and other cardiologists in Illinois.

Book a meeting

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

Dr. Leon Jay Frazin treated 348 Medicare patients in 2024, average age 68

CMS counts 348 Medicare patients who saw Dr. Frazin in 2024. The largest group is 65 to 74, with 139 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 60% are also on Medicaid. Their average risk score is 3.33, 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. Frazin's median patient age at 64, with 25% women.

Medicare patients, 2024348
Average age68
Average risk score3.33
Also on Medicaid60%

Dr. Frazin's Medicare patients by age, 2024

Dr. Frazin's Medicare patients by sex, 2024

  • Women18252%
  • Men16648%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes60%
  4. Chronic kidney disease57%
  5. Arthritis51%
  6. Heart failure51%
  7. Ischemic heart disease51%
  8. Atrial fibrillation42%

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

Dr. Frazin's patients across all payers

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

Patient panel by age, all payers

Median age 64

Patient panel by sex, all payers

  • Women25%
  • Men75%

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

Dr. Leon Jay Frazin scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Frazin for performance year 2024, reported as part of a group. Dr. Frazin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Frazin's MIPS scores, performance year 2024

  • 93of 100Final score
  • 73.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 71of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

For MedTech and pharma teams

Find cardiologists like Dr. Frazin by procedure volume and prescribing

Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.

Dr. Leon Jay Frazin has 11 publications on record

Dmand AI links 11 papers to Dr. Frazin, published from 2011 to 2023. 2015 was the busiest year, with 2. The most frequent topics are Aortic Valve Stenosis, Echocardiography and Aortic Valve. Dr. Frazin has published most often in Echocardiography. Dr. Frazin's most frequent co-authors are Mladen Vidovich, MD, Kevin Vipul Desai and Joshua Henry Arnold, MD, MS.

Papers11
Years published2011 to 2023

Dr. Frazin's papers by year, 2011 to 2023

Topics Dr. Frazin writes about most

  • Aortic Valve Stenosis
  • Echocardiography
  • Aortic Valve
  • Echocardiography, Doppler
  • Echocardiography, Transesophageal
  • Stents
  • Aorta, Thoracic
  • Calcinosis

Dr. Frazin's most frequent co-authors

Recent publications by Dr. Frazin

See all 11 publications and co-authors

See who Dr. Frazin researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Frazin works with, so you can find a warm path to the right cardiologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Leon Jay Frazin received $83 in industry payments from 2017 to 2018

CMS Open Payments shows 6 general payments to Dr. Frazin from 3 drug and device companies from 2017 to 2018. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $51.

General payments to Dr. Frazin by program year, 2017 to 2018

Companies that paid Dr. Frazin the most, 2017 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Frazin

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

Dr. Leon Jay Frazin graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)

Dr. Frazin graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1962.

  1. Medical schoolUniversity of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
  2. Board certified in cardiovascular diseaseAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Leon Jay Frazin'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand 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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile 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. Leon Jay Frazin

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. Leon Jay Frazin's NPI number?

Dr. Leon Jay Frazin's NPI number is 1174555916. It was assigned on July 6, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Leon Jay Frazin?

Dr. Leon Jay Frazin is a cardiologist in Chicago, Illinois. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).

Where does Dr. Leon Jay Frazin practice?

Dr. Frazin practices at 820 S Damen Street, Chicago, IL 60612. Dr. Frazin's primary practice is Jesse Brown Department of Veterans Affairs Medical Center in Chicago, Illinois, part of Veterans Health Administration. Dmand AI also links Dr. Frazin to 1 hospital and 1 physician office.

What is Dr. Leon Jay Frazin's office phone number?

The practice phone on file for Dr. Frazin is (312) 569-8387.

Which hospitals is Dr. Leon Jay Frazin affiliated with?

Dr. Frazin practices at Jesse Brown Department of Veterans Affairs Medical Center in Chicago, Illinois. Dr. Frazin is also affiliated with University of Illinois Hospital. Dmand AI links Dr. Frazin to 1 more hospital.

What medical group is Dr. Leon Jay Frazin part of?

Dr. Frazin is linked to University of Illinois Physicians Group (UIPG).

Does Dr. Leon Jay Frazin accept Medicare?

Yes. CMS data shows Dr. Frazin billed Medicare for 451 services in 2024, and Dr. Frazin accepts Medicare assignment.

What is Dr. Leon Jay Frazin's MIPS score?

Dr. Frazin's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.

How many Medicare patients does Dr. Leon Jay Frazin see?

CMS counts 348 Medicare patients who saw Dr. Frazin in 2024, with an average age of 68.

Is Dr. Leon Jay Frazin board certified?

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

Show 6 more questionsShow fewer questions

What services does Dr. Leon Jay Frazin bill to Medicare?

In 2024, Dr. Frazin's most billed Medicare services were heart test or procedure (93010) and hospital inpatient care (99222).

Where did Dr. Leon Jay Frazin go to medical school?

Dr. Frazin graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1962.

Has Dr. Leon Jay Frazin received payments from drug or device companies?

CMS Open Payments shows $83 in general payments to Dr. Frazin from 3 companies from 2017 to 2018. The largest total came from Amgen Inc.

How long has Dr. Leon Jay Frazin been practicing?

Dr. Frazin graduated from medical school in 1962, 64 years ago.

Does Dr. Leon Jay Frazin do research?

Dmand AI links 11 publications to Dr. Frazin, published from 2011 to 2023.

Who does Dr. Leon Jay Frazin publish with?

Dr. Frazin's most frequent co-authors are Mladen Vidovich, MD (3 shared papers), Kevin Vipul Desai (2 shared papers) and Joshua Henry Arnold, MD, MS (1 shared paper).

Selling to cardiovascular disease practices?

See cardiologists in Illinois by site of care and group

Find the practices, groups and hospitals they work with, and the right people to contact at each.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)