Doctor profile · Federal record
Dr. Sierra Robertson
Physician Assistant · Walla Walla, WA
- NPI 1457937724
- Accepts Medicare
- 6 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
401 W Poplar St
Walla Walla, WA 993622846
(509) 897-3320 - Mailing address
-
751 Grandview Ave
College Place, WA 993241436
Credentials & registration
- NPI registered
- March 2021 — 5 yrs on file
- Year of graduation
- 2020 — 6 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- Washington #PA.61129971
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457937724. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
310
Distinct HCPCS
3
Medicare allowed
$32,235
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 275 | 212 | $107 | |
93280 |
Programming of dual lead pacemaker system | 20 | 20 | $31 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 15 | 14 | $149 |
In context: peer comparison
Among 6 peers in Walla Walla Physician Assistant, average services per provider: 214. This provider delivers 1.4× the peer median.Open Payments
Industry payments received
All-time total
$15
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Edwards Lifesciences Corporation | 1 | $15.42 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
430
Patients
74
Total drug cost
$89,970
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metoprolol Succinate | Generic | 73 | 25 | $1,048 |
| Atorvastatin Calcium | Generic | 65 | 21 | $567 |
| Eliquis (Apixaban) | Brand | 55 | 17 | $59,271 |
| Amlodipine Besylate | Generic | 32 | 11 | $222 |
| Potassium Chloride | Generic | 27 | 0 | $650 |
| Furosemide | Generic | 26 | 0 | $337 |
| Lisinopril | Generic | 25 | 0 | $107 |
| Rosuvastatin Calcium | Generic | 23 | 0 | $426 |
| Metoprolol Tartrate | Generic | 20 | 0 | $230 |
| Xarelto (Rivaroxaban) | Brand | 16 | 0 | $25,618 |
Hospital affiliations
Frequently asked questions
What is Dr. Sierra Robertson's medical specialty?
Dr. Sierra Robertson practices Physician Assistant in Walla Walla, WA.
Where does Dr. Sierra Robertson practice?
Dr. Sierra Robertson practices at 401 W Poplar St, Walla Walla, WA 993622846. Office phone: 5098973320.
What is Dr. Sierra Robertson's NPI?
Dr. Sierra Robertson's National Provider Identifier (NPI) is 1457937724, issued by NPPES.
Does Dr. Sierra Robertson accept Medicare assignment?
Yes. Dr. Sierra Robertson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Sierra Robertson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Programming of dual lead pacemaker system (HCPCS 93280); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.