John Hamilton Addison, MD
NPI 1659323087ActiveIndividual· Internal Medicine, Geriatric Medicine· Mercer Island, WA
Internal Medicine, Geriatric Medicine (MD) in Mercer Island, Washington, trained at University of Washington School of Medicine (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $65,998 for 1,411 claims, against $23,258 paid for services in 2024. Phathom Pharmaceuticals, Inc. reported $112.30 in payments in 2024, mostly food and beverage.
Overview
| NPI | 1659323087 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | May 16, 2006 |
| Last updated in NPPES | Sep 27, 2024 |
| Certified by provider | Sep 27, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Geriatric Medicine Primary | 207RG0300X | MD00018359 | WA |
| Internal Medicine | 207R00000X | DR.0072381 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CO); Practitioner - Geriatric Medicine (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 91 |
|---|---|
| Services billed | 282 across 18 procedure codes |
| Paid by Medicare | $23,258 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,411 · 1,549 30-day fills |
|---|---|
| Patients | 101 |
| Total drug cost | $65,998 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of Washington School of Medicine |
|---|---|
| Graduation year | 1979 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Boulder Community HealthBoise, ID · 264 clinicians
- John H Addison MD PsMercer Island, WA · 6 clinicians
Hospital affiliation
- Boulder Community HealthBoulder, CO
Other facilities
- Bayada Home Health Care IncHome health agency · Broomfield 80020, CO
- Compassionate Home Health Care LLCHome health agency · Broomfield, CO
- Trail Winds HospiceHospice · Boulder, CO
Industry payments (Open Payments)
- 2024$112.30 · 1 payment from 1 company
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $112.30 | 1 |
What the 2024 payments were for
- Food and Beverage$112.30 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Geriatric Medicine providers in Mercer Island
- 1497706774
- 1023069317
All Internal Medicine, Geriatric Medicine providers in Washington →