Patrick Chiasson, MD
NPI 1861458754 · Surgery Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Chiasson, MD is a Surgery Physician provider in Tucson, AZ (NPI 1861458754).
Provider details
- NPI number
- 1861458754
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 29820 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Other Service Providers
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
455 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 119 | $90 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 84 | $126 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 77 | $165 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 50 | $125 |
| Monitoring and Recording of Esophageal Function Through a Capsule Attached to the Esophagus Wall91035 | 31 | $79 |
| Diagnostic Exam of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 128 | 58 |
| Ondansetronbrand: Ondansetron Odt | 118 | 90 |
| Celecoxib | 79 | 75 |
| Famotidine | 62 | 25 |
| Pantoprazole Sodium | 58 | 23 |
| Ursodiol | 48 | 17 |
| Aprepitant | 43 | 40 |
| Oxycodone Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17,720 across 44 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
- 2006-04-21
- Last updated
- 2021-11-18
- Certified
- 2021-11-18
Frequently asked questions
- What is Patrick Chiasson's NPI number?
- Patrick Chiasson's National Provider Identifier (NPI) is 1861458754, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Chiasson's specialty?
- Patrick Chiasson is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Chiasson located?
- Patrick Chiasson's practice location on file with NPPES is 6230 N La Cholla Blvd Ste 250, Tucson, AZ 85741-3529.
- What is Patrick Chiasson's phone number?
- The practice phone number listed in the NPPES registry for Patrick Chiasson is (520) 219-8690.
- Does Patrick Chiasson accept Medicare?
- Patrick Chiasson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Chiasson's NPI active?
- Yes — Patrick Chiasson's NPI (1861458754) is active in the NPPES registry as of the last update on 2021-11-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.