Anthony Merrill, DO
NPI 1730399304 · Gastroenterology Physician · Glendale, AZ
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Anthony Merrill, DO is a Gastroenterology Physician provider in Glendale, AZ (NPI 1730399304).
Provider details
- NPI number
- 1730399304
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- R938 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 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
670 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 | 160 | $88 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 73 | $239 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 64 | $162 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 63 | $108 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 59 | $114 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 193 | 76 |
| Pantoprazole Sodium | 82 | 25 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 56 | 55 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 52 | 49 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 48 | 45 |
| Linaclotidebrand: Linzess | 46 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,743 across 152 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
- 2007-05-23
- Last updated
- 2020-01-16
- Certified
- 2020-01-16
Frequently asked questions
- What is Anthony Merrill's NPI number?
- Anthony Merrill's National Provider Identifier (NPI) is 1730399304, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Anthony Merrill's specialty?
- Anthony Merrill is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Anthony Merrill located?
- Anthony Merrill's practice location on file with NPPES is 20100 N 51st Ave Ste F620, Glendale, AZ 85308-5084.
- What is Anthony Merrill's phone number?
- The practice phone number listed in the NPPES registry for Anthony Merrill is (623) 376-6328.
- Does Anthony Merrill accept Medicare?
- Anthony Merrill is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Anthony Merrill's NPI active?
- Yes — Anthony Merrill's NPI (1730399304) is active in the NPPES registry as of the last update on 2020-01-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.