Theresa Wen Wen Guo, M.D.
NPI 1255694196ActiveIndividual· Otolaryngology· San Diego, CA
Otolaryngology (M.D.) in San Diego, California, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 2012). 148 Medicare patients in 2024, $63,842 paid; nearly all of their 145 Part D prescriptions were generic (99%). Regeneron Healthcare Solutions, Inc. was the largest of 2 companies reporting payments in 2025, $11,785 in all, mostly consulting fees.
Overview
| NPI | 1255694196 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 15, 2012 |
| Last updated in NPPES | Nov 3, 2025 |
| Certified by provider | Nov 3, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Otolaryngology Primary | 207Y00000X | A170293 | CA |
| Otolaryngology | 207Y00000X | 1255694196 | MD |
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 - Otolaryngology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 148 |
|---|---|
| Services billed | 436 across 67 procedure codes |
| Paid by Medicare | $63,842 |
Part D prescriptions in 2024
| Prescriptions (claims) | 145 · 174 30-day fills |
|---|---|
| Patients | 59 |
| Total drug cost | $3,500 |
| Generic share | 99% of claims |
Education and affiliations
| Medical school | Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Otolaryngology |
| Telehealth | Offers telehealth |
Medical group
- Regents of the University of CaliforniaSan Diego, CA · 2,089 clinicians
Hospital affiliation
- Uc San Diego Health Hillcrest - Hillcrest Med CtrSan Diego, CA
Industry payments (Open Payments)
- 2025$11,785 · 12 payments from 2 companies
- 2024$10,308 · 15 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Regeneron Healthcare Solutions, Inc. | $11,645 | 11 |
| Janssen Research & Development, LLC | $140.21 | 1 |
What the 2025 payments were for
- Consulting Fee$9,984 · 2 payments
- Travel and Lodging$1,423 · 6 payments
- Food and Beverage$378.63 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 92 otolaryngologists in San Diego · All otolaryngologists in California