Tin Tin Tun, MD
NPI 1497706816ActiveIndividual· Dermatology· Mountain View, CA
Dermatology (MD) in Mountain View, California, trained at Jefferson Medical College of Thomas Jefferson University (class of 1991). 732 Medicare patients in 2024, $342,469 paid; nearly all of their 851 Part D prescriptions were generic (97%). Janssen Biotech, Inc. was the largest of 18 companies reporting payments in 2025, $2,768 in all, mostly food and beverage.
Overview
| NPI | 1497706816 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 12, 2006 |
| Last updated in NPPES | Dec 5, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Dermatology Primary | 207N00000X | G75074 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Dermatology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 732 |
|---|---|
| Services billed | 4,701 across 89 procedure codes |
| Paid by Medicare | $342,469 |
Part D prescriptions in 2024
| Prescriptions (claims) | 851 · 941 30-day fills |
|---|---|
| Patients | 357 |
| Total drug cost | $29,868 |
| Generic share | 97% of claims |
Education and affiliations
| Medical school | Jefferson Medical College of Thomas Jefferson University |
|---|---|
| Graduation year | 1991 |
| Medicare specialty | Dermatology |
| Telehealth | Offers telehealth |
Medical group
- Sutter Bay Medical FoundationFremont, CA · 3,829 clinicians
Industry payments (Open Payments)
- 2025$2,768 · 100 payments from 18 companies
- 2024$692.57 · 21 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Janssen Biotech, Inc. | $455.48 | 11 |
| Incyte Corporation | $381.99 | 9 |
| Abbvie Inc. | $284.96 | 12 |
| Pfizer Inc. | $270.67 | 11 |
| Genzyme Corporation | $256.79 | 4 |
What the 2025 payments were for
- Food and Beverage$2,589 · 98 payments
- Education$178.99 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 29 dermatologists in Mountain View · All dermatologists in California