John Duque, M.D.
NPI 1295710747 · Gastroenterology Physician · Chula Vista, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Duque, M.D. is a Gastroenterology Physician provider in Chula Vista, CA (NPI 1295710747).
Provider details
- NPI number
- 1295710747
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G48442 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
425 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 143 | $137 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 129 | $177 |
| Diagnostic Exam of Large Bowel Using a Flexible Endoscope45378 | 44 | $182 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 42 | $256 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 40 | $134 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 463 | 453 |
| Sod Picosulf/Mag Ox/Citric Acbrand: Clenpiq | 181 | 178 |
| Omeprazole | 87 | 73 |
| Amoxicillin | 68 | 68 |
| Sucralfate | 68 | 47 |
| Rifabutin | 64 | 63 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 48 | 48 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$103 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-07
- Last updated
- 2013-11-25
Frequently asked questions
- What is John Duque's NPI number?
- John Duque's National Provider Identifier (NPI) is 1295710747, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Duque's specialty?
- John Duque is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Duque located?
- John Duque's practice location on file with NPPES is 480 4th Ave, Chula Vista, CA 91910-4410.
- What is John Duque's phone number?
- The practice phone number listed in the NPPES registry for John Duque is (619) 691-0240.
- Does John Duque accept Medicare?
- John Duque is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Duque's NPI active?
- Yes — John Duque's NPI (1295710747) is active in the NPPES registry as of the last update on 2013-11-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.