Dr. Nathaniel Julien, MD
- Part D claims, 2024
- 43
- Hospital affiliations
- 1
- Industry payments
- $271
- Medical group
- 1
- State license
- 1
- Practice address
- 2100 Napa Vallejo Highway, Napa, CA 94558
- Practice phone
- Call (707) 253-5000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Julien's professional email, personal email and mobile number
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Dr. Nathaniel Julien is a psychiatrist in Napa, California
Dr. Julien practices at Department of State Hospitals - Napa in Napa, California, part of State of California.
Dr. Julien's NPI, 1992340350, was assigned on November 8, 2019. Dr. Julien graduated from University of California, Davis School of Medicine in 2021. Dr. Julien holds Kentucky license R5758.
- NPI
- 1992340350NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5193187557
- NPI enumeration date
- November 8, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (707) 253-5000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 31
- Medical school graduation
- 2021
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Nathaniel Julien practices at Department of State Hospitals - Napa in Napa, California
Dr. Julien's primary practice is Department of State Hospitals - Napa, at 2100 Napa Vallejo Highway, Napa, CA 94558 in Napa County. The practice phone is (707) 253-5000.
- Department of State Hospitals - Napa2100 Napa Vallejo Highway, Napa, CA 94558 · Napa CountyPhone(707) 253-5000
Source: Dmand AI Affiliation Data
Dr. Nathaniel Julien is affiliated with 2 sites of care and 1 medical group
Dr. Julien's primary practice is Department of State Hospitals - Napa in Napa, California, part of State of California. The medical group on file is Coalinga State Hospital. Dmand AI also links Dr. Julien to 1 more skilled nursing facility, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Nathaniel Julien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Julien practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Department of State Hospitals - Napa | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Nathaniel Julien is one of 6,803 psychiatrists in California
Psychiatry is Dr. Julien's primary specialty in the NPI Registry, under taxonomy code 2084P0800X. Dr. Julien is licensed in Kentucky.
Specialties and state licenses
- Psychiatry, KentuckyPrimary
Psychiatrists near Dr. Julien
Counts of psychiatrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Nathaniel Julien's patients have a median age of 66
Across all payers, Dmand AI patient panel data puts Dr. Julien's median patient age at 66, with 0% women.
Dr. Julien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Dr. Nathaniel Julien wrote 43 Medicare Part D claims in 2024
In 2024, Dr. Julien wrote 43 Medicare Part D claims. 86% of them were for generic drugs.
Dr. Julien's Part D claims by kind of drug, 2024
- Generic37 claims86%
- Brand-name and other6 claims14%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Nathaniel Julien takes part in Medicare
Dr. Julien accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Nathaniel Julien received $271 in industry payments in 2024
CMS Open Payments shows 2 general payments to Dr. Julien from 2 drug and device companies in 2024. Food and beverage make up the largest share, 100% of the total. LivaNova USA, Inc. paid the most, $145.
Companies that paid Dr. Julien the most, 2024 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Nathaniel Julien graduated from University of California, Davis School of Medicine
Dr. Julien graduated from University of California, Davis School of Medicine in 2021.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Nathaniel Julien's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Nathaniel Julien
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Nathaniel Julien's NPI number?
Dr. Nathaniel Julien's NPI number is 1992340350. It was assigned on November 8, 2019, and it is active in the NPI Registry.
What kind of doctor is Dr. Nathaniel Julien?
Dr. Nathaniel Julien is a psychiatrist in Napa, California. The primary specialty in the NPI Registry is Psychiatry Physician (taxonomy code 2084P0800X).
Where does Dr. Nathaniel Julien practice?
Dr. Julien practices at 2100 Napa Vallejo Highway, Napa, CA 94558. Dr. Julien's primary practice is Department of State Hospitals - Napa in Napa, California, part of State of California. Dmand AI also links Dr. Julien to 1 skilled nursing facility.
What is Dr. Nathaniel Julien's office phone number?
The practice phone on file for Dr. Julien is (707) 253-5000.
What is Dr. Nathaniel Julien's medical license number?
Dr. Julien holds Kentucky license R5758.
Which hospitals is Dr. Nathaniel Julien affiliated with?
Dr. Julien practices at Department of State Hospitals - Napa in Napa, California.
What medical group is Dr. Nathaniel Julien part of?
Dr. Julien is linked to Coalinga State Hospital.
Does Dr. Nathaniel Julien accept Medicare?
Yes. CMS lists Dr. Julien as accepting Medicare assignment.
Where did Dr. Nathaniel Julien go to medical school?
Dr. Julien graduated from University of California, Davis School of Medicine in 2021.
Has Dr. Nathaniel Julien received payments from drug or device companies?
CMS Open Payments shows $271 in general payments to Dr. Julien from 2 companies from 2024 to 2024. The largest total came from LivaNova USA, Inc.
How long has Dr. Nathaniel Julien been practicing?
Dr. Julien graduated from medical school in 2021, 5 years ago.
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