Ashish Atreja, MD
Preventive Medicine · Stanford
- Medicare standing
- Clear
- Enrolled, allowed to bill and order, not excluded
- Plans that list them
- 9
- 1 carrier
- Office
- 1
Offices
1 location · Stanford Health Care · 3,152 clinicians in this group
Plans that list them
9 plans · 1 carrier
A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Atreja’s office at (650) 723-4000 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.
| Alignment Health BreathEasy (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Clarity (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Harmony (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes CalPlus (HMO C-SNP) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health Heart & Diabetes Care (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Heart & Diabetes Choice (HMO C-SNP) | Alignment Health Plan | Listed | Sep 28, 2026 |
| Alignment Health Honor+ Plan (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
| Alignment Health My Choice CalCare (HMO) | Alignment Health Plan | Listed | Oct 3, 2026 |
Original Medicare doctor bills
$2,886
Medicare paid this office $2,886 for 15 people.
This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.
Procedures Medicare counted
| Colonoscopy | 1-10 | None |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 1-10 | None |
Who their Medicare patients are
15 Original Medicare patients in 2024. Average age 72 · Health risk score 1.32. At or below the middle of the specialty; the typical gastroenterology clinician is at 1.42.
The office billed $31,569, Medicare allowed $3,255 and paid $2,886; for 22 services of 8 kinds.
Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.
Year by year
| 2024 | 15 | 22 | 72 | 1.32 | $31,569 | $2,886 |
| 2020 | 31 | 48 | 70 | 3.01 | $35,201 | $5,091 |
| 2019 | 44 | 64 | 66 | 1.82 | $30,468 | $6,286 |
| 2018 | 45 | 74 | 66 | 1.54 | $42,831 | $6,825 |
| 2017 | 36 | 53 | 66 | 1.67 | $37,279 | $5,276 |
| 2016 | 44 | 70 | 67 | 1.57 | $49,701 | $7,386 |
| 2015 | 75 | 120 | 67 | 2.38 | $72,430 | $12,462 |
| 2014 | 101 | 160 | 66 | 2.52 | $94,069 | $15,440 |
| 2013 | 62 | 109 | 67 | 2.04 | $63,401 | $10,773 |
Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.
See the services billed each year
2019: 1 service
| Return visit (30+ min) | 17 | $1,461 | $58 |
2018: 1 service
| Return visit (30+ min) | 17 | $1,465 | $70 |
2016: 2 services
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 13 | $1,715 | $64 |
| Return visit (30+ min) | 12 | $1,260 | $84 |
2015: 3 services
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 24 | $2,330 | $63 |
| Return visit (30+ min) | 15 | $1,922 | $96 |
| New patient visit (45+ min) | 11 | $1,514 | $138 |
2014: 4 services
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 35 | $3,071 | $63 |
| Return visit (30+ min) | 22 | $2,088 | $91 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 16 | $1,889 | $118 |
| New patient visit (30+ min) | 13 | $862 | $66 |
2013: 3 services
| Return visit (30+ min) | 16 | $2,157 | $94 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 14 | $1,845 | $132 |
| Subsequent hospital care with moderate levelof medical decision making at least 35 minutes | 18 | $1,349 | $61 |
Money from drug and device companies
$769 in 2025
| 2025 | 3 | 3 | $635 | $769 |
| 2024 | 2 | 2 | $30,609 | $30,648 |
| 2023 | 2 | 5 | $13,744 | $15,028 |
| 2022 | 1 | 3 | None | $256 |
| 2019 | 5 | 12 | $7,200 | $20,477 |
Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.
A payment is not proof that care is biased.
| Ethicon | None | $635 | 1 payment
|
| Novo Nordisk | Wegovy | $89 | 1 payment
|
| Phathom Pharmaceuticals | Voquezna | $45 | 1 payment
|
See all 3 published payments
| Ethicon | Consulting · 2025-12-23 | None | $635 |
| Phathom Pharmaceuticals | Meals · 2025-05-05 | Voquezna | $45 |
| Novo Nordisk | Meals · 2025-02-12 | Wegovy | $89 |
See earlier years (2024, 2023, 2022, 2019)
2024: $30,648
| AstraZeneca Pharmaceuticals LP | None | $30,609 | 1 payment
|
| Abiomed | Impella | $39 | 1 payment
|
2023: $15,028
| Novo Nordisk | None | $13,103 | 4 payments
|
| E.R. Squibb & Sons L.L.C. | None | $1,925 | 1 payment
|
2022: $256
| Boston Scientific | Resonate El Icd Vr | $256 | 3 payments
|
2019: $20,477
| F. Hoffmann-La Roche AG | Ocrevus | $19,771 | 6 payments
|
| Eli Lilly and | None | $544 | 2 payments
|
| Ferring Pharmaceuticals | Clenpiq | $72 | 2 payments
|
| Genentech | None | $64 | 1 payment
|
| Takeda Pharmaceuticals U.S.A. | Entyvio | $26 | 1 payment
|
Professional record
- NPI
- 1831152883
- Licence
- NY 265164, OH 35082919
- Group
- Stanford Health Care
- Gender
- Male
More record details
- Sole proprietor
- Yes
- Taxonomy
- Federal specialty code 207RG0100X (207RG0100X); Internal medicine (207R00000X)
- Mailing address
- 300 Pasteur Dr, Stanford, CA, 94305
- NPI first listed
- 2006-04-10
- NPI last updated
- 2026-01-22
- NPI record certified
- 2026-01-22
This is when the NPI record was last certified, not a medical board exam.
Extra NPI addresses: 5 E 98th St, New York, NY, 10029