Doctor profile · Federal record
Dr. Michael Shannon, M.D.
Nephrology Physician (CMS: Nephrology) · Seattle, WA
- NPI 1538119607
- Accepts Medicare
- MIPS 81.1 / 100 · 2023
- 26 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
325 9Th Ave # 359606
Seattle, WA 981042420
(206) 744-4933
fax (206) 744-2252 - Mailing address
-
Po Box 50095
Seattle, WA 981455095
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- July 21, 2022
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 207RN0300X — NUCC code
- State license (1)
- Washington #MD60654692
- Medicaid
- WA #1538119607
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538119607. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
255
Distinct HCPCS
7
Medicare allowed
$38,136
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 63 | 34 | $105 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 52 | 30 | $127 | |
90961 |
Dialysis services, 2-3 physician visits per month (20 years or older) | 43 | 11 | $317 | |
90935 |
Hemodialysis procedure with physician evaluation | 36 | 20 | $76 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 21 | 16 | $154 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 21 | 17 | $85 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 19 | 18 | $186 |
In context: peer comparison
Among 32 peers in Seattle Nephrology Physician, average services per provider: 234. This provider delivers 1.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
808
Patients
174
Total drug cost
$119,441
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Losartan Potassium | Generic | 99 | 26 | $1,338 |
| Amlodipine Besylate | Generic | 96 | 28 | $915 |
| Carvedilol | Generic | 72 | 20 | $777 |
| Torsemide | Generic | 69 | 19 | $2,588 |
| Sevelamer Carbonate | Generic | 61 | 17 | $12,740 |
| Furosemide | Generic | 59 | 13 | $327 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 52 | 15 | $54,100 |
| Allopurinol | Generic | 44 | 0 | $730 |
| Tamsulosin Hcl | Generic | 43 | 0 | $513 |
| Irbesartan | Generic | 41 | 13 | $1,525 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Shannon's medical specialty?
Dr. Michael Shannon practices Nephrology Physician in Seattle, WA.
Where does Dr. Michael Shannon practice?
Dr. Michael Shannon practices at 325 9Th Ave # 359606, Seattle, WA 981042420. Office phone: 2067444933.
What is Dr. Michael Shannon's NPI?
Dr. Michael Shannon's National Provider Identifier (NPI) is 1538119607, issued by NPPES.
Does Dr. Michael Shannon accept Medicare assignment?
Yes. Dr. Michael Shannon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Shannon commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Dialysis services, 2-3 physician visits per month (20 years or older) (HCPCS 90961). Source: CMS Medicare Physician & Other Practitioners file.