Michael Mahoney, MD
NPI 1497881965 · Gastroenterology Physician · Auburn, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Mahoney, MD is a Gastroenterology Physician provider in Auburn, CA (NPI 1497881965).
Provider details
- NPI number
- 1497881965
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A87706 (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
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,357 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 Large Bowel Using a Flexible Endoscope45380 | 313 | $69 |
| Moderate Sedation Services Provided By the Same Physician Or Other Qualified Health Care Professional Performing a Gastrointestinal Endoscopic Service That Sedation Supports, Requiring the Presence of an Independent Trained Observer to Assist in the MonitoG0500 | 259 | $5 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 223 | $255 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 195 | $67 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 158 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 577 | 218 |
| Omeprazole | 257 | 79 |
| Dexlansoprazolebrand: Dexlansoprazole Dr | 69 | 14 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 58 | 56 |
| Mesalamine | 46 | 12 |
| Lipase/Protease/Amylasebrand: Zenpep | 36 | 11 |
| Famotidine | 33 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$135 across 5 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
Additional practice locations (2)
- Sacramento Gastroenterology3941 J Street Suite 450Sacramento, CA 95819Phone: (916) 454-0655Fax: (916) 454-5702
- Sacramento Gastroenterology3941 J Street Suite 450Sacramento, CA 95819Phone: (916) 454-0655Fax: (916) 454-5702
Registry dates
- Enumerated
- 2007-02-26
- Last updated
- 2018-03-17
Frequently asked questions
- What is Michael Mahoney's NPI number?
- Michael Mahoney's National Provider Identifier (NPI) is 1497881965, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Mahoney's specialty?
- Michael Mahoney is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Mahoney located?
- Michael Mahoney's practice location on file with NPPES is 11795 Education St Ste 213, Auburn, CA 95602-2469.
- What is Michael Mahoney's phone number?
- The practice phone number listed in the NPPES registry for Michael Mahoney is (530) 886-6800.
- Does Michael Mahoney accept Medicare?
- Michael Mahoney is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Mahoney's NPI active?
- Yes — Michael Mahoney's NPI (1497881965) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.