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- 220 California Dr, Yountville, CA 94599
About Dr. Fields
Julie S. Fields, MD is a healthcare provider in Yountville, CA specializing in preventive medicine. Julie trained at Howard University College of Medicine, graduating in 1992. Julie is also listed as specializing in public health & general preventive medicine. According to Medicare claims data, Julie cared for 495 Medicare patients across 966 services. The services billed most often include insertion of needle into vein for collection of blood sample, injection of drug or substance under skin or into muscle, and injection, vitamin b-12 cyanocobalamin, up to 1000 mcg. This provider record is associated with NPI 1730156282.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (707) 944-4635
- Email not available
Practice Locations
220 CALIFORNIA DR
Yountville, CA 94599
Conditions Commonly Evaluated or Treated
Within Preventive Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Addiction & habits
- Alcohol use disorder
- Quitting smoking
Blood sugar
- Prediabetes
Bone & joint
- Osteoporosis
Brain health
- Mild cognitive impairment
Cancer risk
- Family History Of Cancer
Digestive health
- Gut Health Issues
Environmental health
- Asbestos Exposure
- Heavy Metal Toxicity
- Tick bite and Lyme disease risk
- Toxic Mold Exposure
- Workplace Chemical Exposure
General wellness
- Chronic Inflammation
Heart health
- Coronary artery disease
- Heart Disease Risk
- High blood pressure
- High cholesterol
- Poor Circulation
Hormones
- Hormone Imbalance
- Testosterone deficiency
- Underactive Thyroid
Kidney health
- Early Kidney Damage
Lifestyle & wellness
- Chronic fatigue
- Chronic Stress And Burnout
Liver & digestion
- Fatty liver disease
Longevity
- Accelerated Biological Aging
Metabolic health
- Gout
Nutrition & deficiencies
- Iron-deficiency anemia
- Vitamin B12 deficiency
Nutrition & deficiency
- Food Intolerances And Sensitivities
- Vitamin D deficiency
Occupational health
- Asbestos and mineral dust exposure
- Shift Work Sleep Problems
- Work-Related Back Strain
Preventive care
- Balance Problems and Fall Risk
Sexual health
- STI Risk And Exposure
Sleep health
- Insomnia and Sleep Problems
- Sleep apnea
Substance use
- Opioid use disorder
- Vaping And Nicotine Addiction
Travel health
- Travel-related Infection Risk
Weight & metabolism
- Insulin Resistance
- Metabolic syndrome
- Obesity
Workplace health
- Carpal tunnel
- Noise-Induced Hearing Damage
- Repetitive strain injury
- Work-related Injury
Procedures & services
Addiction & habits
- Alcohol Reduction Counseling
- Smoking cessation program
Cancer screening
- Cancer screening and prevention planning
- Low-dose CT lung cancer screening
- Mammogram Referral
- Pap smear
- Prostate cancer blood test
- Screening colonoscopy
- Skin cancer screening
Checkups & exams
- Annual Wellness Exam
- Executive Physical Exam
Environmental health
- Heavy Metal Blood Test
- Lead blood test
- Mold Toxicity Testing
Fitness & body composition
- DEXA Body Composition Scan
- VO2 Max Test
Heart health
- Blood Pressure Check
Immunizations
- COVID-19 Booster
- Flu shot
- Hepatitis Screening And Vaccine
- HPV vaccine
- Pneumonia shot
- Routine Vaccines
- Tetanus shot
Lab tests
- Routine blood work
- STI Screening Panel
Lifestyle & wellness
- Exercise Prescription
- Medical nutrition therapy
- Mindfulness-based stress reduction
Longevity
- Biological Age Test
Metabolic health
- Continuous Glucose Monitor Prescription
Occupational health
- Return To Work Evaluation
Preventive imaging
- Abdominal Aortic Aneurysm Screening
- Full Body MRI Scan
Screening & labs
- Bone Density Scan Referral
- Cholesterol screening
- Diabetes and prediabetes screening
- Food Sensitivity Testing
- Genetic Health Risk Testing
- Heart Calcium Score
- Hormone Panel Testing
- Tuberculosis Blood Test
Sexual health
- PrEP prescription
Travel health
- Travel Vaccines And Consult
Weight & metabolism
- Weight Loss Injections and Medication
Workplace health
- DOT Physical Exam
- Ergonomic Workstation Evaluation
- Hearing Test For Work
- Pre-Employment Physical
- Respirator Fit Testing
- Return To Work Clearance
- Workplace Drug Test
Procedures Most Often Billed to Medicare
966 services · 495 patients · 8 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
611 | Too few peers to compare |
| Removal of impacted ear wax | Procedure | 69210 |
48 | Too few peers to compare |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
95 | Too few peers to compare |
| Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with provider supplied equipment | Treatment | 95250 |
60 | Too few peers to compare |
| Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | Drug given | J3420 |
85 | Too few peers to compare |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
37 | As often as other peers in Preventive Medicine |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
15 | Too few peers to compare |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
15 | Less often than most peers in Preventive Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Howard University College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1992 at Howard University College of Medicine 8
Providers who graduated from the same medical school in the same year.
More connections — 4 related providers in 1 group
Also performs Insertion of needle into vein for collection of blood sample 4
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Fields?
Dr. Fields is a preventive medicine in Yountville, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Fields's address?
Dr. Fields is listed at 220 California Dr, Yountville, CA 94599. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Fields?
The number on file is (707) 944-4635. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Fields's NPI number?
Dr. Fields's National Provider Identifier is 1730156282. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Fields train?
Dr. Fields attended Howard University College of Medicine, graduating in 1992. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Fields been practicing?
Dr. Fields has 34 years experience. Calculated from a graduation year of 1992, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Fields perform?
According to Medicare billing data, Dr. Fields performs procedures including insertion of needle into vein for collection of blood sample and removal of impacted ear wax; provides treatments such as injection of drug or substance under skin or into muscle and continuous monitoring of blood sugar level in tissue fluid using sensor under skin with provider supplied equipment, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Fields confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Fields. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.