Gary Annunziata, D.O.
NPI 1861447302 · Gastroenterology Physician · Rancho Mirage, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gary Annunziata, D.O. is a Gastroenterology Physician provider in Rancho Mirage, CA (NPI 1861447302).
Provider details
- NPI number
- 1861447302
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 020A66500 (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
2,478 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 | 956 | $98 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 354 | $120 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 316 | $102 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 189 | $267 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 181 | $169 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 196 | 195 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 185 | 182 |
| Omeprazole | 106 | 35 |
| Pantoprazole Sodium | 103 | 32 |
| Lipase/Protease/Amylasebrand: Creon | 56 | 13 |
| Famotidine | 55 | 25 |
| Mesalamine | 49 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,797 across 86 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
- 2006-05-23
- Last updated
- 2010-12-13
Frequently asked questions
- What is Gary Annunziata's NPI number?
- Gary Annunziata's National Provider Identifier (NPI) is 1861447302, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Annunziata's specialty?
- Gary Annunziata is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Annunziata located?
- Gary Annunziata's practice location on file with NPPES is 35900 Bob Hope Dr, Rancho Mirage, CA 92270-1766.
- What is Gary Annunziata's phone number?
- The practice phone number listed in the NPPES registry for Gary Annunziata is (760) 321-2500.
- Does Gary Annunziata accept Medicare?
- Gary Annunziata is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gary Annunziata's NPI active?
- Yes — Gary Annunziata's NPI (1861447302) is active in the NPPES registry as of the last update on 2010-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.