Doctor profile · Federal record
Dr. Diane Shiffer, PT
Physical Therapist (CMS: Physical Therapist in Private Practice) · Tigard, OR
- NPI 1598708919
- 48 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
12540 Sw 68Th Ave
Tigard, OR 972238597
(503) 974-9078
fax (503) 974-9083
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- May 30, 2023
- Year of graduation
- 1978 — 48 yrs since
- Specialty taxonomy
- 225100000X — NUCC code
- State license (1)
- Oregon #1330
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598708919. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,243
Distinct HCPCS
6
Medicare allowed
$34,574
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
97530 |
Therapy procedure using functional activities | 661 | 40 | $31 | |
97140 |
Therapy procedure using manual technique, each 15 minutes | 339 | 37 | $20 | |
97112 |
Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes | 133 | 31 | $26 | |
97535 |
Training for self-care or home management, each 15 minutes | 61 | 24 | $24 | |
97110 |
Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes | 30 | 13 | $22 | |
97162 |
Evaluation for physical therapy, typically 30 minutes | 19 | 19 | $99 |
In context: peer comparison
Among 12 peers in this city , average services per provider: 247. This provider delivers 5.0× the peer median.Frequently asked questions
What is Dr. Diane Shiffer's medical specialty?
Dr. Diane Shiffer practices Physical Therapist in Tigard, OR.
Where does Dr. Diane Shiffer practice?
Dr. Diane Shiffer practices at 12540 Sw 68Th Ave, Tigard, OR 972238597. Office phone: 5039749078.
What is Dr. Diane Shiffer's NPI?
Dr. Diane Shiffer's National Provider Identifier (NPI) is 1598708919, issued by NPPES.
Does Dr. Diane Shiffer accept Medicare assignment?
Dr. Diane Shiffer does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Diane Shiffer commonly perform?
Top Medicare-reported procedures in 2023: Therapy procedure using functional activities (HCPCS 97530); Therapy procedure using manual technique (HCPCS 97140); Therapy procedure to re-educate brain-to-nerve-to-muscle function (HCPCS 97112). Source: CMS Medicare Physician & Other Practitioners file.