Myriam Elizabeth Guevara, MD
NPI 1467604348ActiveIndividual· Internal Medicine, Rheumatology· Seattle, WA
Internal Medicine, Rheumatology (MD) with Tmh Physician Associates PLLC and 1 other group, practicing in Seattle, Washington. Their prescriptions cost Medicare Part D more than their services did: $540,346 for 458 claims, against $49,764 paid for services in 2024. Abbvie Inc. was the largest of 9 companies reporting payments in 2025, $1,121 in all, mostly food and beverage. Lists Houston Methodist Baytown Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1467604348 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Oct 22, 2008 |
| Last updated in NPPES | Jul 10, 2014 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | MD60277217 | WA |
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 - Rheumatology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 114 |
|---|---|
| Services billed | 895 across 26 procedure codes |
| Paid by Medicare | $49,764 |
Part D prescriptions in 2024
| Prescriptions (claims) | 458 · 782 30-day fills |
|---|---|
| Patients | 82 |
| Total drug cost | $540,346 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Rheumatology |
| Telehealth | Offers telehealth |
Medical groups
- Tmh Physician Associates PLLCKaty, TX · 1,690 clinicians
- Houston Methodist Specialty PhysiciansHouston, TX · 1,528 clinicians
Hospital affiliations
- Houston Methodist Baytown HospitalBaytown, TX
- Houston Methodist HospitalHouston, TX
Industry payments (Open Payments)
- 2025$1,121 · 63 payments from 9 companies
- 2024$1,092 · 59 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $349.16 | 24 |
| Amgen Inc. | $220.47 | 13 |
| Ucb, Inc. | $159.65 | 9 |
| Janssen Biotech, Inc. | $100.23 | 3 |
| Aurinia Pharma U.S., Inc. | $92.58 | 5 |
What the 2025 payments were for
- Food and Beverage$1,066 · 62 payments
- Education$54.99 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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