Thomas Kemmerly, M.D.
NPI 1033476262 · Gastroenterology Physician · Murrieta, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Thomas Kemmerly, M.D. is a Gastroenterology Physician provider in Murrieta, CA (NPI 1033476262).
Provider details
- NPI number
- 1033476262
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A128828 (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
14 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
644 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 | 99 | $98 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 87 | $82 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 77 | $163 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 72 | $123 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 66 | $177 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Pantoprazole Sodium | 261 | 101 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 150 | 147 |
| Omeprazole | 66 | 22 |
| Amitriptyline Hcl | 45 | 16 |
| Sodium Chloride 0.45 %brand: Sodium Chloride | 43 | — |
| Famotidine | 37 | 18 |
| Lansoprazole | 30 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$654 across 37 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)
- 1925 W River RdApt 6206Tucson, AZ 85704-1464Phone: (714) 277-7067
Registry dates
- Enumerated
- 2012-04-12
- Last updated
- 2018-04-16
Frequently asked questions
- What is Thomas Kemmerly's NPI number?
- Thomas Kemmerly's National Provider Identifier (NPI) is 1033476262, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Thomas Kemmerly's specialty?
- Thomas Kemmerly is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Thomas Kemmerly located?
- Thomas Kemmerly's practice location on file with NPPES is 40404 California Oaks Rd Ste C, Murrieta, CA 92562-5786.
- What is Thomas Kemmerly's phone number?
- The practice phone number listed in the NPPES registry for Thomas Kemmerly is (951) 600-0288.
- Does Thomas Kemmerly accept Medicare?
- Thomas Kemmerly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Thomas Kemmerly's NPI active?
- Yes — Thomas Kemmerly's NPI (1033476262) is active in the NPPES registry as of the last update on 2018-04-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.