Doctor profile · Federal record
Dr. Jason Johnston, PA
Physician Assistant · Watsonville, CA
- NPI 1598900599
- Accepts Medicare
- 18 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1430 Freedom Blvd
Watsonville, CA 950762780
(831) 763-8400
fax (831) 454-4488
Credentials & registration
- NPI registered
- December 2008 — 18 yrs on file
- Profile last updated
- February 19, 2025
- Year of graduation
- 2008 — 18 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State license (1)
- California #PA20025
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1598900599. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
99
Distinct HCPCS
2
Medicare allowed
$3,875
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
83036 |
Hemoglobin a1c level | 72 | 39 | $10 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 27 | 13 | $118 |
In context: peer comparison
Among 7 peers in Watsonville Physician Assistant, average services per provider: 62. This provider delivers 1.6× the peer median.Open Payments
Industry payments received
All-time total
$111
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Braeburn INC. | 1 | $110.52 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
963
Patients
208
Total drug cost
$220,746
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 98 | 32 | $2,620 |
| Gabapentin | Generic | 97 | 26 | $4,606 |
| Omeprazole | Generic | 94 | 28 | $2,017 |
| Metformin Hcl | Generic | 89 | 26 | $1,754 |
| Diclofenac Sodium | Generic | 81 | 24 | $4,275 |
| Lisinopril | Generic | 63 | 15 | $1,044 |
| Rybelsus (Semaglutide) | Brand | 62 | 13 | $84,099 |
| Ozempic (Semaglutide) | Brand | 59 | 14 | $63,528 |
| Amlodipine Besylate | Generic | 58 | 16 | $1,159 |
| Fluticasone Propionate | Generic | 57 | 14 | $954 |
Frequently asked questions
What is Dr. Jason Johnston's medical specialty?
Dr. Jason Johnston practices Physician Assistant in Watsonville, CA.
Where does Dr. Jason Johnston practice?
Dr. Jason Johnston practices at 1430 Freedom Blvd, Watsonville, CA 950762780. Office phone: 8317638400.
What is Dr. Jason Johnston's NPI?
Dr. Jason Johnston's National Provider Identifier (NPI) is 1598900599, issued by NPPES.
Does Dr. Jason Johnston accept Medicare assignment?
Yes. Dr. Jason Johnston accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jason Johnston commonly perform?
Top Medicare-reported procedures in 2023: Hemoglobin a1c level (HCPCS 83036); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.