Alex Aslan, M.D.
NPI 1538115571 · Gastroenterology Physician · Concord, CA
Alex Aslan, M.D. is a Gastroenterology Physician provider in Concord, CA (NPI 1538115571).
Provider details
- NPI number
- 1538115571
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- G62211 (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
20 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
295 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 101 | $254 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 52 | $214 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 45 | $102 |
| Removal of Polyps Or Growths of Large Bowel Using a Flexible Endoscope With Electrical Cautery45384 | 40 | $217 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 21 | $225 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 109 | 103 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 41 | 36 |
| Omeprazole | 37 | 18 |
| Pantoprazole Sodium | 32 | 11 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Peg-3350 and Electrolytes | 27 | 23 |
| Dicyclomine Hcl | 23 | — |
| Linaclotide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$178 across 8 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)
- 3903 Lone Tree Way Ste 205Antioch, CA 94509-6269Phone: (925) 754-8710
Registry dates
- Enumerated
- 2006-05-25
- Last updated
- 2024-11-12
- Certified
- 2024-11-12
Frequently asked questions
- What is Alex Aslan's NPI number?
- Alex Aslan's National Provider Identifier (NPI) is 1538115571, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alex Aslan's specialty?
- Alex Aslan is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Alex Aslan located?
- Alex Aslan's practice location on file with NPPES is 2222 East St Ste 300, Concord, CA 94520-2066.
- What is Alex Aslan's phone number?
- The practice phone number listed in the NPPES registry for Alex Aslan is (925) 682-7730.
- Is Alex Aslan's NPI active?
- Yes — Alex Aslan's NPI (1538115571) is active in the NPPES registry as of the last update on 2024-11-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.