Gregory Ardigo, M.D.
NPI 1548353956 · Specialist · Murrieta, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Ardigo, M.D. is a Specialist provider in Murrieta, CA (NPI 1548353956).
Provider details
- NPI number
- 1548353956
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G75943 (CA)
Specialties & taxonomies
Other Service Providers
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
595 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) |
|---|---|---|
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 85 | $77 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 74 | $184 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 69 | $177 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 54 | $119 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 45 | $82 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 332 | 109 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 212 | 210 |
| Mesalamine | 60 | 13 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 50 | 50 |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 40 | — |
| Omeprazole | 35 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,311 across 66 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
- 2006-09-30
- Last updated
- 2007-07-09
Frequently asked questions
- What is Gregory Ardigo's NPI number?
- Gregory Ardigo's National Provider Identifier (NPI) is 1548353956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Ardigo's specialty?
- Gregory Ardigo is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Gregory Ardigo located?
- Gregory Ardigo's practice location on file with NPPES is 40404 California Oaks Rd, Murrieta, CA 92562-5786.
- What is Gregory Ardigo's phone number?
- The practice phone number listed in the NPPES registry for Gregory Ardigo is (951) 600-0288.
- Does Gregory Ardigo accept Medicare?
- Gregory Ardigo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Ardigo's NPI active?
- Yes — Gregory Ardigo's NPI (1548353956) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.