Robert Sawyer, M.D.
NPI 1487616892 · Gastroenterology Physician · Mesa, AZ
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Sawyer, M.D. is a Gastroenterology Physician provider in Mesa, AZ (NPI 1487616892).
Provider details
- NPI number
- 1487616892
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 18601 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 65 | 38 |
| Omeprazole | 15 | 13 |
| Esomeprazole Magnesium | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (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
Additional practice locations (2)
- 1520 S Dobson RdSuite 302Mesa, AZ 85202-4725Phone: (480) 461-1088Fax: (480) 461-1657
- 21321 E Ocotillo Rd Ste 114Queen Creek, AZ 85142-5994Phone: (480) 461-1088Fax: (480) 461-1657
Registry dates
- Enumerated
- 2006-04-03
- Last updated
- 2023-11-27
Frequently asked questions
- What is Robert Sawyer's NPI number?
- Robert Sawyer's National Provider Identifier (NPI) is 1487616892, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Sawyer's specialty?
- Robert Sawyer is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Sawyer located?
- Robert Sawyer's practice location on file with NPPES is 603 W Baseline Rd Ste 200, Mesa, AZ 85210-6047.
- What is Robert Sawyer's phone number?
- The practice phone number listed in the NPPES registry for Robert Sawyer is (480) 461-1088.
- Does Robert Sawyer accept Medicare?
- Robert Sawyer is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Sawyer's NPI active?
- Yes — Robert Sawyer's NPI (1487616892) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.