Julie Fields, MD
NPI 1730156282 · Public Health & General Preventive Medicine Physician · Yountville, CA
Enrolled with Medicare as Practitioner - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julie Fields, MD is a Public Health & General Preventive Medicine Physician provider in Yountville, CA (NPI 1730156282).
Provider details
- NPI number
- 1730156282
- Entity type
- Individual
- Primary specialty
- Public Health & General Preventive Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A52506 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
881 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 611 | $9 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 95 | $17 |
| Continuous Monitoring of Blood Sugar Level in Tissue Fluid Using Sensor Under Skin With Provider Supplied Equipment95250 | 60 | $188 |
| Removal of Impacted Ear Wax69210 | 48 | $55 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 37 | $145 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 15 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Metoprolol Succinate | 33 |
| Apixabanbrand: Eliquis | 30 |
| Finasteride | 25 |
| Simvastatin | 24 |
| Levothyroxine Sodium | 23 |
| Tamsulosin Hcl | 22 |
| Allopurinol | 18 |
| Prednisone | 18 |
| Albuterol Sulfatebrand: Ventolin Hfa |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (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
- 2006-03-03
- Last updated
- 2018-03-23
Frequently asked questions
- What is Julie Fields's NPI number?
- Julie Fields's National Provider Identifier (NPI) is 1730156282, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julie Fields's specialty?
- Julie Fields is listed in the NPPES registry with a primary specialty of Public Health & General Preventive Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Julie Fields located?
- Julie Fields's practice location on file with NPPES is 220 California Dr, Yountville, CA 94599-1412.
- What is Julie Fields's phone number?
- The practice phone number listed in the NPPES registry for Julie Fields is (707) 944-4635.
- Does Julie Fields accept Medicare?
- Julie Fields is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julie Fields's NPI active?
- Yes — Julie Fields's NPI (1730156282) is active in the NPPES registry as of the last update on 2018-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.