Sam Tonthat, D.O.
NPI 1699139782 · Nephrology Physician · Fresno, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sam Tonthat, D.O. is a Nephrology Physician provider in Fresno, CA (NPI 1699139782).
Provider details
- NPI number
- 1699139782
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 188 | $217 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 78 | $123 |
| Critical Care, Each Additional 30 Minutes99292 | 36 | $109 |
| Emergent Insertion of Breathing Tube Into Windpipe Using an Endoscope31500 | 14 | $141 |
| Insertion of Artery Tube for Blood Sampling Or Infusion Through Skin36620 | 14 | $44 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 14 | $179 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$236 across 2 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
- 2016-04-05
- Last updated
- 2022-05-07
- Certified
- 2022-05-06
Frequently asked questions
- What is Sam Tonthat's NPI number?
- Sam Tonthat's National Provider Identifier (NPI) is 1699139782, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sam Tonthat's specialty?
- Sam Tonthat is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Sam Tonthat located?
- Sam Tonthat's practice location on file with NPPES is 155 N Fresno St, Fresno, CA 93701-2302.
- What is Sam Tonthat's phone number?
- The practice phone number listed in the NPPES registry for Sam Tonthat is (559) 499-6500.
- Does Sam Tonthat accept Medicare?
- Sam Tonthat is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sam Tonthat's NPI active?
- Yes — Sam Tonthat's NPI (1699139782) is active in the NPPES registry as of the last update on 2022-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.