Dr. Kai M. Sun, DO

  • San Angelo, TX
  • Cardiologist
NPI1023286317PAC ID8729221742
Medicare services, 2024
3,656
Medicare patients, 2024
1,236
Part D claims, 2024
8,124
Publications
85
MIPS score, 2024
83
Practice address
120 E Harris Ave., San Angelo, TX 76903
Practice phone
Call (325) 653-6741
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Shannon Medical Center

Hospital · San Angelo, Texas

See all 9 affiliations

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Dr. Kai M. Sun is a cardiologist in San Angelo, Texas

Dr. Sun practices at Shannon Medical Center in San Angelo, Texas, part of Shannon Health System.

Dr. Sun's NPI, 1023286317, was assigned on February 20, 2008. Dr. Sun graduated from Texas College of Osteopathic Medicine in 2006. Dr. Sun holds Texas license M9037.

NPI and contact details
Medicare PAC ID
8729221742
NPI enumeration date
February 20, 2008
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(325) 653-6741
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
46
Medical school graduation
2006

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

Dr. Kai M. Sun practices at Shannon Medical Center in San Angelo, Texas

Dr. Sun's primary practice is Shannon Medical Center, at 120 E Harris Ave., San Angelo, TX 76903 in Tom Green County. The practice phone is (325) 653-6741.

Source: Dmand AI Affiliation Data

Dr. Kai M. Sun is affiliated with 7 sites of care and 2 medical groups

Dr. Sun's primary practice is Shannon Medical Center in San Angelo, Texas, part of Shannon Health System. Dr. Sun is also affiliated with Ballinger Memorial Hospital. The medical group on file is Shannon Clinic. Dmand AI also links Dr. Sun to 3 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.

See all 9 affiliations for Dr. Sun

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

Dmand AI tracks the EHR system at Dr. Kai M. Sun's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sun practices, 7 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Shannon Medical CenterAvailable with a free account
+6 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Kai M. Sun is one of 1,481 cardiologists in Texas

Cardiovascular disease is Dr. Sun's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Sun is board certified in cardiology by the AOA Board of Internal Medicine. Dr. Sun is licensed in Texas.

Specialties and state licenses

  • Cardiovascular disease, TexasPrimaryLicense M9037 · taxonomy 207RC0000X

Clinical focus

Dmand AI lists angioplasty, atrial fibrillation and flutter, cardiac catheterization, cardiomyopathy, cerebrovascular disease, chronic embolism thrombosis, chronic hypertension and coronary artery disease among the conditions Dr. Sun treats.

Cardiologists near Dr. Sun

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. Kai M. Sun billed Medicare for 3,656 services in 2024

CMS data shows 3,656 Medicare services from Dr. Sun across 19 procedure codes in 2024, for 1,236 Medicare patients. Medicare paid $271,086 for them.

Medicare services, 20243,656
Medicare patients1,236
Paid by Medicare$271,086
Procedure codes19

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

  • 2023
  • 2024
Office and hospital visits
2023: 2,0582024: 2,29712%
Tests and treatments
2023: 1,1302024: 92618%
Surgery
2023: 2232024: 33148%
Imaging
2023: 1092024: 8720%
Lab and pathology
2023: 02024: 15

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

  • In an office2,58671%
  • In a facility1,07029%

Dr. Sun compared with the Texas median for cardiologists, 2024

  • Dr. Sun
  • Texas median
Medicare services
3,656vs 1,95587% above
Medicare patients
1,236vs 62897% above
Part D claims
7,727vs 2,2323.5 times

Medians across 1,431 cardiologists in Texas with Dmand AI profiles that report each measure.

Dr. Sun'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. Sun

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

Dr. Kai M. Sun treated 1,236 Medicare patients in 2024, average age 76

CMS counts 1,236 Medicare patients who saw Dr. Sun in 2024. The largest group is 65 to 74, with 523 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.28, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Sun's median patient age at 76, with 47% women.

Medicare patients, 20241,236
Average age76
Average risk score1.28
Also on Medicaid10%

Dr. Sun's Medicare patients by age, 2024

Dr. Sun's Medicare patients by sex, 2024

  • Women59748%
  • Men63952%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Ischemic heart disease63%
  4. Arthritis46%
  5. Diabetes40%
  6. Chronic kidney disease35%
  7. Heart failure34%
  8. Atrial fibrillation28%

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

Dr. Sun's patients across all payers

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

Patient panel by age, all payers

Median age 76

Patient panel by sex, all payers

  • Women47%
  • Men52%

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

Dr. Kai M. Sun wrote 8,124 Medicare Part D claims in 2024

In 2024, Dr. Sun wrote 8,124 Medicare Part D claims for 1,144 patients. 83% of them were for generic drugs. CMS names the drug for 7,727 of them, across 72 drugs with 11 or more claims each, at $1,079,548 in total drug cost. In 2023, CMS named 6,570 claims across 71 drugs.

Part D claims, 20248,124
Drugs named by CMS72
Total drug cost$1.1M
Part D patients1,144

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

  • Generic6,728 claims83%
  • Brand-name and other1,396 claims17%

Dr. Sun'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. Sun's Part D claims, 2024

  • Antibiotics0%17 of 8,124 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: 6,5702024: 7,72718%

Drugs named by CMS: 72 in 2024, 71 in 2023.

See all prescribing by Dr. Sun

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. Kai M. Sun scored 83 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Sun for performance year 2024, reported as part of a group. Dr. Sun accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 46 procedures of coronary angioplasty and stenting by Dr. Sun, more than 81% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Sun's MIPS scores, performance year 2024

  • 83of 100Final score
  • 78.2of 100Quality
  • 96of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 67of 100Cost

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

Where Dr. Sun ranks in Medicare procedure volume

Coronary angioplasty and stenting
81st percentile46 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)

Pacemaker insertion or repair: 1 to 10 procedures (CMS shows small counts as a range)

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

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Dr. Kai M. Sun has 85 publications on record

Dmand AI links 85 papers to Dr. Sun, published from 2006 to 2024. 2014 was the busiest year, with 9. The most frequent topics are Adipose Tissue, Obesity and Adipocytes. Dr. Sun has published most often in Nat Commun. Dr. Sun's most frequent co-authors are Min Ji J. Kim, MD, Brad E. Snyder, MD and Stephen Spurgin, MD.

Papers85
Years published2006 to 2024

Dr. Sun's papers by year, 2014 to 2024

Topics Dr. Sun writes about most

  • Adipose Tissue
  • Obesity
  • Adipocytes
  • Diet, High-Fat
  • Insulin Resistance
  • Mice, Inbred C57BL
  • Cells, Cultured
  • Genotype

Dr. Sun's most frequent co-authors

Recent publications by Dr. Sun

See all 85 publications and co-authors

See who Dr. Sun researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sun 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. Kai M. Sun received $4,480 in industry payments from 2016 to 2025

CMS Open Payments shows 212 general payments to Dr. Sun from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. AstraZeneca Pharmaceuticals LP paid the most, $701.

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

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

$4.5Kin total
  • Food and beverage$4,35697%
  • Education$1243%

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

Share is of all general payments to this clinician.

See all payments to Dr. Sun

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

Dr. Kai M. Sun graduated from Texas College of Osteopathic Medicine

Dr. Sun graduated from Texas College of Osteopathic Medicine in 2006. Dr. Sun is a member of AOA.

  1. Medical schoolTexas College of Osteopathic Medicine
  2. Board certified in cardiologyAOA Board of Internal Medicine
  3. Board certified in internal medicineAOA Board of Internal Medicine
  4. Board certified in interventional cardiology (caq)AOA Board of Internal Medicine
  5. Board certified in 2008 - 2025TX State License

Source: Dmand AI Professional Profile Data

Dr. Kai M. Sun accepts plans from 23 insurance carriers

Dr. Sun is in network with 23 carriers, including Elevance, Aetna and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 15. Check the plan with the practice before a visit.

Plan types Dr. Sun accepts, by number of carriers

  1. PPO15
  2. HMO12
  3. Medicare11
  4. POS7
  5. EPO5
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Kai M. Sun'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)
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)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (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
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. Kai M. Sun

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. Kai M. Sun's NPI number?

Dr. Kai M. Sun's NPI number is 1023286317. It was assigned on February 20, 2008, and it is active in the NPI Registry.

What kind of doctor is Dr. Kai M. Sun?

Dr. Kai M. Sun is a cardiologist in San Angelo, Texas. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).

Where does Dr. Kai M. Sun practice?

Dr. Sun practices at 120 E Harris Ave., San Angelo, TX 76903. Dr. Sun's primary practice is Shannon Medical Center in San Angelo, Texas, part of Shannon Health System. Dmand AI also links Dr. Sun to 3 hospitals, 2 group practices and clinics and 1 medical group.

What is Dr. Kai M. Sun's office phone number?

The practice phone on file for Dr. Sun is (325) 653-6741.

What is Dr. Kai M. Sun's medical license number?

Dr. Sun holds Texas license M9037.

Which hospitals is Dr. Kai M. Sun affiliated with?

Dr. Sun practices at Shannon Medical Center in San Angelo, Texas. Dr. Sun is also affiliated with Ballinger Memorial Hospital. Dmand AI links Dr. Sun to 3 more hospitals.

What medical group is Dr. Kai M. Sun part of?

Dr. Sun is linked to Shannon Clinic. Dmand AI links Dr. Sun to 1 more medical group.

Does Dr. Kai M. Sun accept Medicare?

Yes. CMS data shows Dr. Sun billed Medicare for 3,656 services in 2024, and Dr. Sun accepts Medicare assignment.

What is Dr. Kai M. Sun's MIPS score?

Dr. Sun's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.

How many Medicare patients does Dr. Kai M. Sun see?

CMS counts 1,236 Medicare patients who saw Dr. Sun in 2024, with an average age of 76.

Show 9 more questionsShow fewer questions

Is Dr. Kai M. Sun board certified?

Yes. Dr. Sun is board certified in cardiology by the AOA Board of Internal Medicine.

What services does Dr. Kai M. Sun bill to Medicare?

In 2024, Dr. Sun's most billed Medicare services were office visit, established patient (99214), heart test or procedure (93306) and surgery: heart and blood vessels (36415).

Where did Dr. Kai M. Sun go to medical school?

Dr. Sun graduated from Texas College of Osteopathic Medicine in 2006.

What drugs does Dr. Kai M. Sun prescribe most?

In 2024 Medicare Part D data, Dr. Sun's most prescribed drugs by claims were Atorvastatin Calcium, Furosemide and Clopidogrel.

Has Dr. Kai M. Sun received payments from drug or device companies?

CMS Open Payments shows $4,480 in general payments to Dr. Sun from 35 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Kai M. Sun been practicing?

Dr. Sun graduated from medical school in 2006, 20 years ago.

Does Dr. Kai M. Sun do research?

Dmand AI links 85 publications to Dr. Sun, published from 2006 to 2024.

Who does Dr. Kai M. Sun publish with?

Dr. Sun's most frequent co-authors are Min Ji J. Kim, MD (2 shared papers), Brad E. Snyder, MD (2 shared papers) and Stephen Spurgin, MD (2 shared papers).

What insurance does Dr. Kai M. Sun accept?

Dr. Sun is in network with 23 carriers, including Elevance, Aetna and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 15. Check the plan with the practice before a visit.

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