Michael Mendoza, M.D.
NPI 1902989668 · Gastroenterology Physician · Monterey, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael Mendoza, M.D. is a Gastroenterology Physician provider in Monterey, CA (NPI 1902989668).
Provider details
- NPI number
- 1902989668
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A77129 (CA)
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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,429 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 294 | $134 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 231 | $248 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 182 | $76 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 128 | $174 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 105 | $176 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 21 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 376 | 124 |
| Omeprazole | 118 | 47 |
| Sodium Chloride/Nahco3/Kcl/Pegbrand: Peg 3350-Electrolyte | 62 | 62 |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 43 | 42 |
| Lipase/Protease/Amylasebrand: Creon | 38 | — |
| Lubiprostone | 38 | — |
| Sodium, Potassium,mag Sulfates |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$102 across 6 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 (1)
- 850 5th StGonzales, CA 93926-9491Phone: (831) 657-3601
Registry dates
- Enumerated
- 2006-10-23
- Last updated
- 2020-12-18
- Certified
- 2020-12-18
Frequently asked questions
- What is Michael Mendoza's NPI number?
- Michael Mendoza's National Provider Identifier (NPI) is 1902989668, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael Mendoza's specialty?
- Michael Mendoza is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Michael Mendoza located?
- Michael Mendoza's practice location on file with NPPES is 23 Upper Ragsdale Dr, Monterey, CA 93940-7849.
- What is Michael Mendoza's phone number?
- The practice phone number listed in the NPPES registry for Michael Mendoza is (831) 375-3577.
- Does Michael Mendoza accept Medicare?
- Michael Mendoza is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael Mendoza's NPI active?
- Yes — Michael Mendoza's NPI (1902989668) is active in the NPPES registry as of the last update on 2020-12-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.