Julie Castner, PA
NPI 1508357435 · Physician Assistant · Rocklin, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julie Castner, PA is a Physician Assistant provider in Rocklin, CA (NPI 1508357435).
Provider details
- NPI number
- 1508357435
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- PA56505 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
8 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
453 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 244 | $82 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 94 | $114 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 35 | $116 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 27 | $9 |
| Urinalysis, Manual Test81002 | 26 | $3 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 66 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 103 | 35 |
| Atorvastatin Calcium | 92 | 31 |
| Amlodipine Besylate | 71 | 22 |
| Lisinopril | 53 | 24 |
| Cyclobenzaprine Hcl | 46 | 15 |
| Losartan Potassium | 46 | 20 |
| Empagliflozin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,267 across 127 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-05-26
- Last updated
- 2023-10-18
- Certified
- 2023-10-18
Frequently asked questions
- What is Julie Castner's NPI number?
- Julie Castner's National Provider Identifier (NPI) is 1508357435, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julie Castner's specialty?
- Julie Castner is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Julie Castner located?
- Julie Castner's practice location on file with NPPES is 3104 Sunset Blvd Ste 2b, Rocklin, CA 95677-3093.
- What is Julie Castner's phone number?
- The practice phone number listed in the NPPES registry for Julie Castner is (916) 624-0300.
- Does Julie Castner accept Medicare?
- Julie Castner is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julie Castner's NPI active?
- Yes — Julie Castner's NPI (1508357435) is active in the NPPES registry as of the last update on 2023-10-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.