Doctor profile · Federal record
Dr. Diane Seim, PA-C
Physician Assistant · Seattle, WA
- NPI 1346493616
- Accepts Medicare
- MIPS 87.0 / 100 · 2023
- 18 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1959 Ne Pacific Street
Seattle, WA 98195
(206) 543-5972 - Mailing address
-
1200 N 48Th St
Seattle, WA 981036660
Credentials & registration
- NPI registered
- October 2008 — 18 yrs on file
- Profile last updated
- October 11, 2012
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- Washington #PA60053094
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1346493616. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
311
Distinct HCPCS
7
Medicare allowed
$25,334
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
77001 |
Fluoroscopic guidance for insertion or removal of central vein access device | 73 | 69 | $16 | |
76937 |
Ultrasonic guidance for blood vessel access | 72 | 68 | $13 | |
99152 |
Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes | 64 | 61 | $11 | |
36561 |
Insertion of central venous tube with port (5 years or older) | 34 | 34 | $301 | |
36558 |
Insertion of tunneled central venous tube for infusion (5 years or older) | 31 | 29 | $232 | |
36589 |
Removal of tunneled central venous tube | 22 | 22 | $124 | |
36590 |
Removal of central venous tube with port or pump | 15 | 14 | $157 |
In context: peer comparison
Among 177 peers in Seattle Physician Assistant, average services per provider: 71. This provider delivers 4.4× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
11
Patients
11
Total drug cost
$44
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone Hcl | Generic | 11 | 11 | $44 |
Hospital affiliations
Frequently asked questions
What is Dr. Diane Seim's medical specialty?
Dr. Diane Seim practices Physician Assistant in Seattle, WA.
Where does Dr. Diane Seim practice?
Dr. Diane Seim practices at 1959 Ne Pacific Street, Seattle, WA 98195. Office phone: 2065435972.
What is Dr. Diane Seim's NPI?
Dr. Diane Seim's National Provider Identifier (NPI) is 1346493616, issued by NPPES.
Does Dr. Diane Seim accept Medicare assignment?
Yes. Dr. Diane Seim accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diane Seim commonly perform?
Top Medicare-reported procedures in 2023: Fluoroscopic guidance for insertion or removal of central vein access device (HCPCS 77001); Ultrasonic guidance for blood vessel access (HCPCS 76937); Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older) (HCPCS 99152). Source: CMS Medicare Physician & Other Practitioners file.