Doctor profile · Federal record
Dr. William Maes, MD
Family Medicine Physician (CMS: Family Practice) · Student in an Organized Health Care Education/Training Program · Seattle, WA
- NPI 1114488525
- Accepts Medicare
- 7 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
9245 Rainier Ave S
Seattle, WA 981185569
(206) 722-8444
fax (206) 721-6310 - Additional location
-
975 Sereno Dr, Family Medicine Department
Vallejo, CA 945892441
(707) 651-4071 - Mailing address
-
1200 12Th Ave S Ste 901
Seattle, WA 981442712
Credentials & registration
- NPI registered
- March 2019 — 7 yrs on file
- Profile last updated
- March 17, 2026
- Year of graduation
- 2019 — 7 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State license (1)
- Washington #MD61476823
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1114488525. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
13
Distinct HCPCS
1
Medicare allowed
$1,134
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99238 |
Hospital discharge day management, 30 minutes or less | 13 | 13 | $87 |
In context: peer comparison
Among 154 peers in this city , average services per provider: 61. This provider delivers 0.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
175
Patients
64
Total drug cost
$2,871
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 43 | 20 | $1,068 |
| Pantoprazole Sodium | Generic | 20 | 15 | $225 |
| Cefpodoxime Proxetil | Generic | 18 | 18 | $427 |
| Metoprolol Tartrate | Generic | 18 | 11 | $156 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 15 | 0 | $270 |
| Lisinopril | Generic | 14 | 0 | $149 |
| Amlodipine Besylate | Generic | 12 | 0 | $127 |
| Losartan Potassium | Generic | 12 | 0 | $135 |
| Metoprolol Succinate | Generic | 12 | 0 | $180 |
| Tamsulosin Hcl | Generic | 11 | 0 | $135 |
Frequently asked questions
What is Dr. William Maes's medical specialty?
Dr. William Maes practices Family Medicine Physician in Seattle, WA.
Where does Dr. William Maes practice?
Dr. William Maes practices at 9245 Rainier Ave S, Seattle, WA 981185569. Office phone: 2067228444.
What is Dr. William Maes's NPI?
Dr. William Maes's National Provider Identifier (NPI) is 1114488525, issued by NPPES.
Does Dr. William Maes accept Medicare assignment?
Yes. Dr. William Maes accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Maes commonly perform?
Top Medicare-reported procedures in 2023: Hospital discharge day management (HCPCS 99238). Source: CMS Medicare Physician & Other Practitioners file.