Dr. Angelo Gregory Chachas, MD

  • Salt Lake City, UT
  • General surgeon
NPI1194726232PAC ID5597797811
Medicare services, 2024
151
Medicare patients, 2024
131
Part D claims, 2024
289
Hospital affiliations
1
Industry payments
$35,804
Practice address
1200 East 3900 South, Salt Lake City, UT 84124
Practice phone
Call (801) 268-7111
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

St. Mark's Hospital

Hospital · Salt Lake City, Utah

See all 3 affiliations

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Dr. Angelo Gregory Chachas is a general surgeon in Salt Lake City, Utah

Dr. Chachas practices at St. Mark's Hospital in Salt Lake City, Utah, part of HCA Healthcare.

Dr. Chachas' NPI, 1194726232, was assigned on August 10, 2005. Dr. Chachas graduated from Spencer Fox Eccles School of Medicine in 2000. Dr. Chachas holds Utah license 5951382-1205.

NPI and contact details
Medicare PAC ID
5597797811
NPI enumeration date
August 10, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(801) 268-7111
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
52
Medical school graduation
2000

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

Dr. Angelo Gregory Chachas practices at St. Mark's Hospital in Salt Lake City, Utah

Dr. Chachas' primary practice is St. Mark's Hospital, at 1200 East 3900 South, Salt Lake City, UT 84124 in Salt Lake County. The practice phone is (801) 268-7111.

  • St. Mark's Hospital
    1200 East 3900 South, Salt Lake City, UT 84124 · Salt Lake CountyPhone(801) 268-7111

Source: Dmand AI Affiliation Data

Dr. Angelo Gregory Chachas is affiliated with 2 sites of care and 1 medical group

Dr. Chachas' primary practice is St. Mark's Hospital in Salt Lake City, Utah, part of HCA Healthcare. The medical group on file is MountainStar General Surgery - Salt Lake City. Dmand AI also links Dr. Chachas to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Chachas

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

Dmand AI tracks the EHR system at Dr. Angelo Gregory Chachas' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chachas practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
St. Mark's HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Angelo Gregory Chachas is one of 229 general surgeons in Utah

Surgery is Dr. Chachas' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chachas is board certified in surgery by the American Board of Surgery. Dr. Chachas is licensed in Utah.

Specialties and state licenses

  • Surgery, UtahPrimaryLicense 5951382-1205 · 2005 to 2026 · taxonomy 208600000X

Clinical focus

Dmand AI lists abdominal hernia repair surgery, gallbladder removal, groin hernia surgery and varicose vein treatment among the conditions Dr. Chachas treats.

General surgeons near Dr. Chachas

Counts of general surgeons 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. Angelo Gregory Chachas billed Medicare for 151 services in 2024

CMS data shows 151 Medicare services from Dr. Chachas across 5 procedure codes in 2024, for 131 Medicare patients. Medicare paid $17,239 for them.

Medicare services, 2024151
Medicare patients131
Paid by Medicare$17,239
Procedure codes5

Dr. Chachas' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1492024: 11920%
Tests and treatments
2023: 02024: 18
Surgery
2023: 152024: 147%

Where Dr. Chachas' Medicare services took place, 2024

  • In an office13791%
  • In a facility149%

Dr. Chachas compared with the Utah median for general surgeons, 2024

  • Dr. Chachas
  • Utah median
Medicare services
151vs 9756% above
Medicare patients
131vs 9046% above
Part D claims
264vs 328.3 times

Medians across 231 general surgeons in Utah with Dmand AI profiles that report each measure.

Dr. Chachas' 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. Chachas

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

Dr. Angelo Gregory Chachas treated 131 Medicare patients in 2024, average age 75

CMS counts 131 Medicare patients who saw Dr. Chachas in 2024. The largest group is 65 to 74, with 69 patients. 70% of them have high blood pressure, and 69% have high cholesterol. Their average risk score is 1.47, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Chachas' median patient age at 69, with 47% women.

Medicare patients, 2024131
Average age75
Average risk score1.47

Dr. Chachas' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Chachas' Medicare patients by sex, 2024

  • Women6852%
  • Men6348%

Chronic conditions among Dr. Chachas' Medicare patients, 2024

  1. High blood pressure70%
  2. High cholesterol69%
  3. Arthritis56%
  4. Mood disorders33%
  5. Chronic kidney disease32%
  6. Depression32%
  7. Atrial fibrillation27%
  8. Ischemic heart disease27%

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

Dr. Chachas' patients across all payers

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

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women47%
  • Men51%

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

Dr. Angelo Gregory Chachas wrote 289 Medicare Part D claims in 2024

In 2024, Dr. Chachas wrote 289 Medicare Part D claims for 111 patients. 99% of them were for generic drugs. CMS names the drug for 264 of them, across 4 drugs with 11 or more claims each, at $1,533 in total drug cost. In 2023, CMS named 172 claims across 3 drugs.

Part D claims, 2024289
Drugs named by CMS4
Total drug cost$1,533
Part D patients111

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

  • Generic285 claims99%
  • Brand-name and other4 claims1%

Dr. Chachas' 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. Chachas' Part D claims, 2024

  • Opioids28%82 of 289 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: 1722024: 26453%

Drugs named by CMS: 4 in 2024, 3 in 2023.

See all prescribing by Dr. Chachas

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. Angelo Gregory Chachas ranks in the 85th percentile for hernia repair (minimally invasive) in Medicare

Dr. Chachas accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 17 procedures of hernia repair (minimally invasive) by Dr. Chachas, more than 85% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Where Dr. Chachas ranks in Medicare procedure volume

Hernia repair (minimally invasive)
85th percentile17 procedures

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

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)

Removal of tissue: 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. Angelo Gregory Chachas received $35,804 in industry payments from 2016 to 2025

CMS Open Payments shows 87 general payments to Dr. Chachas from 14 drug and device companies from 2016 to 2025. Education make up the largest share, 73% of the total. Intuitive Surgical, Inc. paid the most, $32,637.

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

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

$35.8Kin total
  • Education$26,00073%
  • Speaker and faculty fees$6,00017%
  • Food and beverage$2,4607%
  • Travel and lodging$1,3434%

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

Share is of all general payments to this clinician.

See all payments to Dr. Chachas

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

Dr. Angelo Gregory Chachas graduated from Spencer Fox Eccles School of Medicine

Dr. Chachas graduated from Spencer Fox Eccles School of Medicine in 2000.

  1. Medical schoolSpencer Fox Eccles School of Medicine
  2. Board certified in surgeryAmerican Board of Surgery

Source: Dmand AI Professional Profile Data

Dr. Angelo Gregory Chachas accepts plans from 17 insurance carriers

Dr. Chachas is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • Cigna
  • +9 more carriersWith a free account

Plan types Dr. Chachas accepts, by number of carriers

  1. PPO10
  2. HMO9
  3. Medicare9
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Angelo Gregory Chachas'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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
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. Angelo Gregory Chachas

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. Angelo Gregory Chachas' NPI number?

Dr. Angelo Gregory Chachas' NPI number is 1194726232. It was assigned on August 10, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Angelo Gregory Chachas?

Dr. Angelo Gregory Chachas is a general surgeon in Salt Lake City, Utah. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).

Where does Dr. Angelo Gregory Chachas practice?

Dr. Chachas practices at 1200 East 3900 South, Salt Lake City, UT 84124. Dr. Chachas' primary practice is St. Mark's Hospital in Salt Lake City, Utah, part of HCA Healthcare. Dmand AI also links Dr. Chachas to 1 group practice or clinic.

What is Dr. Angelo Gregory Chachas' office phone number?

The practice phone on file for Dr. Chachas is (801) 268-7111.

What is Dr. Angelo Gregory Chachas' medical license number?

Dr. Chachas holds Utah license 5951382-1205.

Which hospitals is Dr. Angelo Gregory Chachas affiliated with?

Dr. Chachas practices at St. Mark's Hospital in Salt Lake City, Utah.

What medical group is Dr. Angelo Gregory Chachas part of?

Dr. Chachas is linked to MountainStar General Surgery - Salt Lake City.

Does Dr. Angelo Gregory Chachas accept Medicare?

Yes. CMS data shows Dr. Chachas billed Medicare for 151 services in 2024, and Dr. Chachas accepts Medicare assignment.

How many Medicare patients does Dr. Angelo Gregory Chachas see?

CMS counts 131 Medicare patients who saw Dr. Chachas in 2024, with an average age of 75.

Is Dr. Angelo Gregory Chachas board certified?

Yes. Dr. Chachas is board certified in surgery by the American Board of Surgery.

Show 6 more questionsShow fewer questions

What services does Dr. Angelo Gregory Chachas bill to Medicare?

In 2024, Dr. Chachas' most billed Medicare services were office visit, new patient (99204), office visit, established patient (99213) and office visit, established patient (99212).

Where did Dr. Angelo Gregory Chachas go to medical school?

Dr. Chachas graduated from Spencer Fox Eccles School of Medicine in 2000.

What drugs does Dr. Angelo Gregory Chachas prescribe most?

In 2024 Medicare Part D data, Dr. Chachas' most prescribed drugs by claims were Ondansetron HCl, Ibuprofen and Hydrocodone-Acetaminophen.

Has Dr. Angelo Gregory Chachas received payments from drug or device companies?

CMS Open Payments shows $35,804 in general payments to Dr. Chachas from 14 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.

How long has Dr. Angelo Gregory Chachas been practicing?

Dr. Chachas graduated from medical school in 2000, 26 years ago.

What insurance does Dr. Angelo Gregory Chachas accept?

Dr. Chachas is in network with 17 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.

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