Dr. David J. Piazza, MD

  • Mchenry, IL
  • Colorectal surgeon
NPI1528172897PAC ID4082661806
Medicare services, 2024
511
Medicare patients, 2024
229
Part D claims, 2024
232
Publications
1
MIPS score, 2024
96
Practice address
4201 W Medical Center Dr, Mchenry, IL 60050
Practice phone
Call (815) 344-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Centegra Hospital - McHenry

Mchenry, Illinois

See all 7 affiliations

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Dr. David J. Piazza is a colorectal surgeon in Mchenry, Illinois

Dr. Piazza practices at Centegra Hospital - McHenry in Mchenry, Illinois.

Dr. Piazza's NPI, 1528172897, was assigned on August 17, 2006. Dr. Piazza graduated from Loyola University of Chicago, Stritch School of Medicine in 1985. Dr. Piazza holds Illinois license 036074166.

NPI and contact details
Medicare PAC ID
4082661806
NPI enumeration date
August 17, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(815) 344-5000
Professional email
Get email
Personal email
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Mobile number
Get number
Sex
Male
Estimated age
67
Medical school graduation
1985

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

Dr. David J. Piazza practices at Centegra Hospital - McHenry in Mchenry, Illinois

Dr. Piazza's primary practice is Centegra Hospital - McHenry, at 4201 W Medical Center Dr, Mchenry, IL 60050 in Mchenry County. The practice phone is (815) 344-5000.

  • Centegra Hospital - McHenry
    4201 W Medical Center Dr, Mchenry, IL 60050 · Mchenry CountyPhone(815) 344-5000

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

Dr. David J. Piazza is affiliated with 3 sites of care and 4 medical groups

Dr. Piazza's primary practice is Centegra Hospital - McHenry in Mchenry, Illinois. Dr. Piazza is also affiliated with Livingston HealthCare. The medical group on file is Northwestern Medicine Regional Medical Group. Dmand AI also links Dr. Piazza to 3 more medical groups and 1 group practice or clinic, each named with a free account.

See all 7 affiliations for Dr. Piazza

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

Dmand AI tracks the EHR system at Dr. David J. Piazza's practice

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

EHR by site
SiteEHR vendor and product
Centegra Hospital - McHenryAvailable with a free account
+2 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. David J. Piazza is one of 78 colorectal surgeons in Illinois

Colon and rectal surgery is Dr. Piazza's primary specialty in the NPI Registry, under taxonomy code 208C00000X. Dr. Piazza is licensed in Illinois.

Specialties and state licenses

  • Colon and rectal surgery, IllinoisPrimaryLicense 036074166 · taxonomy 208C00000X

Colorectal surgeons near Dr. Piazza

Counts of colorectal 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. David J. Piazza billed Medicare for 511 services in 2024

CMS data shows 511 Medicare services from Dr. Piazza across 13 procedure codes in 2024, for 229 Medicare patients. Medicare paid $54,705 for them.

Medicare services, 2024511
Medicare patients229
Paid by Medicare$54,705
Procedure codes13

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

  • 2023
  • 2024
Office and hospital visits
2023: 2352024: 44489%
Surgery
2023: 1322024: 6749%

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

  • In an office27253%
  • In a facility23947%

Dr. Piazza compared with the Illinois median for colorectal surgeons, 2024

  • Dr. Piazza
  • Illinois median
Medicare services
511vs 2182.3 times
Medicare patients
229vs 16043% above
Part D claims
171vs 10366% above

Medians across 71 colorectal surgeons in Illinois with Dmand AI profiles that report each measure.

Dr. Piazza'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.

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

Dr. David J. Piazza treated 229 Medicare patients in 2024, average age 75

CMS counts 229 Medicare patients who saw Dr. Piazza in 2024. The largest group is 65 to 74, with 102 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.58, 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. Piazza's median patient age at 69, with 72% women.

Medicare patients, 2024229
Average age75
Average risk score1.58
Also on Medicaid11%

Dr. Piazza's Medicare patients by age, 2024

Dr. Piazza's Medicare patients by sex, 2024

  • Women11651%
  • Men11349%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis53%
  4. Ischemic heart disease44%
  5. Chronic kidney disease37%
  6. Diabetes36%
  7. Anxiety33%
  8. Heart failure30%

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

Dr. Piazza's 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

  • Women72%
  • Men28%

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

Dr. David J. Piazza wrote 232 Medicare Part D claims in 2024

In 2024, Dr. Piazza wrote 232 Medicare Part D claims for 98 patients. 81% of them were for generic drugs. CMS names the drug for 171 of them, across 8 drugs with 11 or more claims each, at $2,759 in total drug cost. In 2023, CMS named 77 claims across 1 drug.

Part D claims, 2024232
Drugs named by CMS8
Total drug cost$2,759
Part D patients98

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

  • Generic189 claims81%
  • Brand-name43 claims19%

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

  • Antibiotics37%86 of 232 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: 772024: 171122%

Drugs named by CMS: 8 in 2024, 1 in 2023.

See all prescribing by Dr. Piazza

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. David J. Piazza scored 96 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 96 out of 100 for Dr. Piazza for performance year 2024, reported through an alternative payment model (APM). Dr. Piazza accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Piazza's MIPS scores, performance year 2024

  • 96of 100Final score
  • 88.5of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

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

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Dr. David J. Piazza has 1 publication on record

Dmand AI links 1 paper to Dr. Piazza. Dr. Piazza's most frequent co-authors are Jonathan Frederick Bean, MD and Anthony C. Chin, MD.

Papers1

Dr. Piazza's most frequent co-authors

Recent publications by Dr. Piazza

See all 1 publications and co-authors

See who Dr. Piazza researches with

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

How network discovery works

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

Dr. David J. Piazza received $6,990 in industry payments from 2016 to 2024

CMS Open Payments shows 66 general payments to Dr. Piazza from 15 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 54% of the total. Intuitive Surgical, Inc. paid the most, $3,201.

General payments to Dr. Piazza by program year, 2016 to 2024

General payments to Dr. Piazza by kind, 2016 to 2024

$7Kin total
  • Food and beverage$3,76954%
  • Travel and lodging$2,22232%
  • Education$1,00014%

Companies that paid Dr. Piazza the most, 2016 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Piazza

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

Dr. David J. Piazza graduated from Loyola University of Chicago, Stritch School of Medicine

Dr. Piazza graduated from Loyola University of Chicago, Stritch School of Medicine in 1985.

  1. Medical schoolLoyola University of Chicago, Stritch School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. David J. Piazza'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 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)
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. David J. Piazza

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. David J. Piazza's NPI number?

Dr. David J. Piazza's NPI number is 1528172897. It was assigned on August 17, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. David J. Piazza?

Dr. David J. Piazza is a colorectal surgeon in Mchenry, Illinois. The primary specialty in the NPI Registry is Colon & Rectal Surgery Physician (taxonomy code 208C00000X).

Where does Dr. David J. Piazza practice?

Dr. Piazza practices at 4201 W Medical Center Dr, Mchenry, IL 60050. Dr. Piazza's primary practice is Centegra Hospital - McHenry in Mchenry, Illinois. Dmand AI also links Dr. Piazza to 3 medical groups and 1 group practice or clinic.

What is Dr. David J. Piazza's office phone number?

The practice phone on file for Dr. Piazza is (815) 344-5000.

What is Dr. David J. Piazza's medical license number?

Dr. Piazza holds Illinois license 036074166.

Which hospitals is Dr. David J. Piazza affiliated with?

Dr. Piazza is affiliated with Livingston HealthCare.

What medical group is Dr. David J. Piazza part of?

Dr. Piazza is linked to Northwestern Medicine Regional Medical Group. Dmand AI links Dr. Piazza to 3 more medical groups.

Does Dr. David J. Piazza accept Medicare?

Yes. CMS data shows Dr. Piazza billed Medicare for 511 services in 2024, and Dr. Piazza accepts Medicare assignment.

What is Dr. David J. Piazza's MIPS score?

Dr. Piazza's MIPS final score for performance year 2024 is 96 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. David J. Piazza see?

CMS counts 229 Medicare patients who saw Dr. Piazza in 2024, with an average age of 75.

Show 7 more questionsShow fewer questions

What services does Dr. David J. Piazza bill to Medicare?

In 2024, Dr. Piazza's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and hospital inpatient care (99223).

Where did Dr. David J. Piazza go to medical school?

Dr. Piazza graduated from Loyola University of Chicago, Stritch School of Medicine in 1985.

What drugs does Dr. David J. Piazza prescribe most?

In 2024 Medicare Part D data, Dr. Piazza's most prescribed drugs by claims were Metronidazole, Neomycin Sulfate and Peg 3350-Electrolyte.

Has Dr. David J. Piazza received payments from drug or device companies?

CMS Open Payments shows $6,990 in general payments to Dr. Piazza from 15 companies from 2016 to 2024. The largest total came from Intuitive Surgical, Inc.

How long has Dr. David J. Piazza been practicing?

Dr. Piazza graduated from medical school in 1985, 41 years ago.

Does Dr. David J. Piazza do research?

Dmand AI links 1 publication to Dr. Piazza.

Who does Dr. David J. Piazza publish with?

Dr. Piazza's most frequent co-authors are Jonathan Frederick Bean, MD (1 shared paper) and Anthony C. Chin, MD (1 shared paper).

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