Ashish Atreja, MD
NPI 1831152883 · Gastroenterology Physician · Stanford, CA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ashish Atreja, MD is a Gastroenterology Physician provider in Stanford, CA (NPI 1831152883).
Provider details
- NPI number
- 1831152883
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35082919 (OH)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$30,648 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
Additional practice locations (1)
- 5 E 98th StNew York, NY 10029-6501Phone: (212) 241-4299Fax: (212) 426-5108
Registry dates
- Enumerated
- 2006-04-10
- Last updated
- 2026-01-22
- Certified
- 2026-01-22
Frequently asked questions
- What is Ashish Atreja's NPI number?
- Ashish Atreja's National Provider Identifier (NPI) is 1831152883, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ashish Atreja's specialty?
- Ashish Atreja is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Ashish Atreja located?
- Ashish Atreja's practice location on file with NPPES is 300 Pasteur Dr, Stanford, CA 94305-2200.
- What is Ashish Atreja's phone number?
- The practice phone number listed in the NPPES registry for Ashish Atreja is (650) 723-4000.
- Does Ashish Atreja accept Medicare?
- Ashish Atreja is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ashish Atreja's NPI active?
- Yes — Ashish Atreja's NPI (1831152883) is active in the NPPES registry as of the last update on 2026-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.