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Dr. John J. Duque, MD
NPI1295710747PAC ID6305853508
- Medicare services, 2024
- 425
- Medicare patients, 2024
- 179
- Part D claims, 2024
- 1,084
- Publications
- 4
- Hospital affiliations
- 2
- Practice address
- 681 Third Avenue, Suite B, Chula Vista, CA 91910
- Practice phone
- Call (619) 425-2150
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Endoscopy Center of Chula Vista
Surgery Center - Medicare-Certified · Chula Vista, California
Find Dr. Duque'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.
Dr. John J. Duque is a gastroenterologist in Chula Vista, California
Dr. Duque practices at Endoscopy Center of Chula Vista in Chula Vista, California.
Dr. Duque's NPI, 1295710747, was assigned on December 7, 2005. Dr. Duque graduated from UC San Diego School of Medicine in 1981. Dr. Duque's California license number on file is G48442.
NPI and contact details
- NPI
- 1295710747NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6305853508
- NPI enumeration date
- December 7, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (619) 425-2150
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John J. Duque practices at Endoscopy Center of Chula Vista in Chula Vista, California
Dr. Duque's primary practice is Endoscopy Center of Chula Vista, at 681 Third Avenue, Suite B, Chula Vista, CA 91910. The practice phone is (619) 425-2150.
- Endoscopy Center of Chula Vista681 Third Avenue, Suite B, Chula Vista, CA 91910Phone(619) 425-2150
Source: Dmand AI Affiliation Data
Dr. John J. Duque is affiliated with 4 sites of care and 2 medical groups
Dr. Duque's primary practice is Endoscopy Center of Chula Vista in Chula Vista, California. Dr. Duque is also affiliated with Sharp Chula Vista Medical Center. The medical group on file is Emergency and Acute Care Medical Corporation. Dmand AI also links Dr. Duque to 1 more hospital, 1 group practice or clinic and 1 medical group, each named with a free account. Dr. Duque's employer is on file too: a surgery center (asc).
Endoscopy Center of Chula VistaPrimary
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John J. Duque's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Duque practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Endoscopy Center of Chula Vista | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. John J. Duque is one of 1,977 gastroenterologists in California
Gastroenterology is Dr. Duque's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Duque is board certified in gastroenterology by the American Board of Internal Medicine. Dmand AI has Dr. Duque's licenses on file in 2 states: California and Florida.
Specialties and state licenses
- Gastroenterology, CaliforniaPrimary
- Florida license
Clinical focus
Dmand AI lists acid reflux, acute gastroduodenitis, chronic indigestion, chronic inflammatory bowel disease (IBD), colonoscopy, fatty liver, gastroduodenitis and gastrointestinal bleeding among the conditions Dr. Duque treats.
Gastroenterologists near Dr. Duque
Counts of gastroenterologists 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. John J. Duque billed Medicare for 425 services in 2024
CMS data shows 425 Medicare services from Dr. Duque across 7 procedure codes in 2024, for 179 Medicare patients. Medicare paid $54,009 for them.
Medicare services, 2024425
Medicare patients179
Paid by Medicare$54,009
Procedure codes7
Dr. Duque's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2872024: 2831%
- Surgery
- 2023: 1352024: 1425%
Where Dr. Duque's Medicare services took place, 2024
- In an office28367%
- In a facility14233%
Dr. Duque compared with the California median for gastroenterologists, 2024
- Dr. Duque
- California median
- Medicare services
- 425vs 58627% below
- Medicare patients
- 179vs 30241% below
- Part D claims
- 1,019vs 3802.7 times
Medians across 1,875 gastroenterologists in California with Dmand AI profiles that report each measure.
Dr. Duque'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.
Need commercial claims for Dr. Duque?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Duque and other gastroenterologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John J. Duque treated 179 Medicare patients in 2024, average age 73
CMS counts 179 Medicare patients who saw Dr. Duque in 2024. The largest group is 65 to 74, with 91 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.33, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Duque's median patient age at 69, with 54% women.
Medicare patients, 2024179
Average age73
Average risk score1.33
Also on Medicaid21%
Dr. Duque's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Duque's Medicare patients by sex, 2024
- Women10156%
- Men7844%
Chronic conditions among Dr. Duque's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes50%
- Arthritis46%
- Chronic kidney disease31%
- Ischemic heart disease25%
- Heart failure20%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Duque'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
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John J. Duque wrote 1,084 Medicare Part D claims in 2024
In 2024, Dr. Duque wrote 1,084 Medicare Part D claims for 763 patients. 79% of them were for generic drugs. CMS names the drug for 1,019 of them, across 8 drugs with 11 or more claims each, at $56,051 in total drug cost. In 2023, CMS named 1,028 claims across 10 drugs.
Part D claims, 20241,084
Drugs named by CMS8
Total drug cost$56,051
Part D patients763
Dr. Duque's Part D claims by kind of drug, 2024
- Generic851 claims79%
- Brand-name233 claims21%
Dr. Duque'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. Duque's Part D claims, 2024
- Antibiotics7%79 of 1,084 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: 1,0282024: 1,0191%
Drugs named by CMS: 8 in 2024, 10 in 2023.
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. John J. Duque ranks in the 93rd percentile for colonoscopy in Medicare
Dr. Duque accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 199 procedures of colonoscopy by Dr. Duque, more than 93% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Duque ranks in Medicare procedure volume
- Colonoscopy
- 93rd percentile199 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 88th percentile181 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. John J. Duque has 4 publications on record
Dmand AI links 4 papers to Dr. Duque, published from 2021 to 2025. The most frequent topics are COVID-19, Oligonucleotide Array Sequence Analysis and SARS-CoV-2. Dr. Duque's most frequent co-authors are Paul J. Pockros, MD and Priyanka Singh, MD.
Papers4
Years published2021 to 2025
Topics Dr. Duque writes about most
- COVID-19
- Oligonucleotide Array Sequence Analysis
- SARS-CoV-2
Dr. Duque's most frequent co-authors
Recent publications by Dr. Duque
COVID-19Genome, ViralOligonucleotide Array Sequence Analysis
Gastroenterology
AlbuminsAscitesChylous Ascites
Gastrointest Endosc
Duodenal DiseasesDuodenoscopyDuodenum
See who Dr. Duque researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Duque works with, so you can find a warm path to the right gastroenterologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John J. Duque received $2,998 in industry payments from 2016 to 2025
CMS Open Payments shows 55 general payments to Dr. Duque from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Gilead Sciences, Inc. paid the most, $678.
General payments to Dr. Duque by program year, 2016 to 2025
General payments to Dr. Duque by kind, 2016 to 2025
$3Kin total
- Food and beverage$2,87396%
- Gifts$1254%
Companies that paid Dr. Duque the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John J. Duque has 1 award and honors on record
Dmand AI lists 1 award for Dr. Duque, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Duque
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. John J. Duque graduated from UC San Diego School of Medicine
Dr. Duque graduated from UC San Diego School of Medicine in 1981.
- Medical school
- Board certified in gastroenterology
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. John J. Duque accepts plans from 8 insurance carriers
Dr. Duque is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Elevance
- Humana
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Molina
Plan types Dr. Duque accepts, by number of carriers
- Medicare5
- HMO4
- POS4
- PPO3
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. John J. Duque's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. John J. Duque
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. John J. Duque's NPI number?
Dr. John J. Duque's NPI number is 1295710747. It was assigned on December 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John J. Duque?
Dr. John J. Duque is a gastroenterologist in Chula Vista, California. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. John J. Duque practice?
Dr. Duque practices at 681 Third Avenue, Suite B, Chula Vista, CA 91910. Dr. Duque's primary practice is Endoscopy Center of Chula Vista in Chula Vista, California. Dmand AI also links Dr. Duque to 1 hospital, 1 group practice or clinic and 1 medical group.
What is Dr. John J. Duque's office phone number?
The practice phone on file for Dr. Duque is (619) 425-2150.
What is Dr. John J. Duque's medical license number?
Dr. Duque's California license number on file is G48442, one of the licenses on file in 2 states.
Which states has Dr. John J. Duque been licensed in?
Dmand AI has state licenses on file for Dr. Duque in California (1982 to 2025) and Florida (since 1988).
Which hospitals is Dr. John J. Duque affiliated with?
Dr. Duque is affiliated with Sharp Chula Vista Medical Center. Dmand AI links Dr. Duque to 1 more hospital.
What medical group is Dr. John J. Duque part of?
Dr. Duque is linked to Emergency and Acute Care Medical Corporation. Dmand AI links Dr. Duque to 1 more medical group.
Does Dr. John J. Duque accept Medicare?
Yes. CMS data shows Dr. Duque billed Medicare for 425 services in 2024, and Dr. Duque accepts Medicare assignment.
How many Medicare patients does Dr. John J. Duque see?
CMS counts 179 Medicare patients who saw Dr. Duque in 2024, with an average age of 73.
Show 9 more questionsShow fewer questions
Is Dr. John J. Duque board certified?
Yes. Dr. Duque is board certified in gastroenterology by the American Board of Internal Medicine.
What services does Dr. John J. Duque bill to Medicare?
In 2024, Dr. Duque's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99204) and surgery: digestive system (45378).
Where did Dr. John J. Duque go to medical school?
Dr. Duque graduated from UC San Diego School of Medicine in 1981.
What drugs does Dr. John J. Duque prescribe most?
In 2024 Medicare Part D data, Dr. Duque's most prescribed drugs by claims were Gavilyte-C, Clenpiq and Omeprazole.
Has Dr. John J. Duque received payments from drug or device companies?
CMS Open Payments shows $2,998 in general payments to Dr. Duque from 19 companies from 2016 to 2025. The largest total came from Gilead Sciences, Inc.
How long has Dr. John J. Duque been practicing?
Dr. Duque graduated from medical school in 1981, 45 years ago.
Does Dr. John J. Duque do research?
Dmand AI links 4 publications to Dr. Duque, published from 2021 to 2025.
Who does Dr. John J. Duque publish with?
Dr. Duque's most frequent co-authors are Paul J. Pockros, MD (1 shared paper) and Priyanka Singh, MD (1 shared paper).
What insurance does Dr. John J. Duque accept?
Dr. Duque is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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