Mounzer Al Samman, M.D.
NPI 1700822160 · Gastroenterology Physician · Fairfield, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mounzer Al Samman, M.D. is a Gastroenterology Physician provider in Fairfield, CA (NPI 1700822160).
Provider details
- NPI number
- 1700822160
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A50016 (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
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,350 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 | 281 | $145 |
| 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 | 268 | $6 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 143 | $104 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 137 | $114 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 120 | $120 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 28 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 380 | 112 |
| Pantoprazole Sodium | 254 | 69 |
| Linaclotidebrand: Linzess | 134 | 35 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-C | 96 | 96 |
| Dicyclomine Hcl | 81 | 26 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 65 | 65 |
| Famotidine | 63 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,396 across 66 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
- 2006-06-22
- Last updated
- 2015-07-31
Frequently asked questions
- What is Mounzer Al Samman's NPI number?
- Mounzer Al Samman's National Provider Identifier (NPI) is 1700822160, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mounzer Al Samman's specialty?
- Mounzer Al Samman is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Mounzer Al Samman located?
- Mounzer Al Samman's practice location on file with NPPES is 5140 Business Center Dr, Fairfield, CA 94534-1793.
- What is Mounzer Al Samman's phone number?
- The practice phone number listed in the NPPES registry for Mounzer Al Samman is (707) 646-3555.
- Does Mounzer Al Samman accept Medicare?
- Mounzer Al Samman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mounzer Al Samman's NPI active?
- Yes — Mounzer Al Samman's NPI (1700822160) is active in the NPPES registry as of the last update on 2015-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.