Steven Kaiser, MD
NPI 1346219433 · Gastroenterology Physician · Mesa, AZ
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Steven Kaiser, MD is a Gastroenterology Physician provider in Mesa, AZ (NPI 1346219433).
Provider details
- NPI number
- 1346219433
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 36236 (AZ)
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
742 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 | 161 | $123 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 93 | $161 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 91 | $81 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 69 | $116 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 68 | $238 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 413 | 135 |
| Famotidine | 174 | 62 |
| Omeprazole | 119 | 41 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 94 | 93 |
| Sod Picosulf/Mag Ox/Citric Acbrand: Clenpiq | 80 | 78 |
| Dicyclomine Hcl | 63 | 30 |
| Sucralfate | 46 | 18 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$372 across 21 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
- 2006-03-14
- Last updated
- 2011-10-31
Frequently asked questions
- What is Steven Kaiser's NPI number?
- Steven Kaiser's National Provider Identifier (NPI) is 1346219433, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Steven Kaiser's specialty?
- Steven Kaiser is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Steven Kaiser located?
- Steven Kaiser's practice location on file with NPPES is 4540 E Baseline Rd, Mesa, AZ 85206-4613.
- What is Steven Kaiser's phone number?
- The practice phone number listed in the NPPES registry for Steven Kaiser is (480) 306-6405.
- Does Steven Kaiser accept Medicare?
- Steven Kaiser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Steven Kaiser's NPI active?
- Yes — Steven Kaiser's NPI (1346219433) is active in the NPPES registry as of the last update on 2011-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.