Jeffrey Millegan, MD, MPH
NPI 1831251719 · Psychiatry Physician · Calabasas, CA
Jeffrey Millegan, MD, MPH is a Psychiatry Physician provider in Calabasas, CA (NPI 1831251719).
Provider details
- NPI number
- 1831251719
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD, MPH
- Sex
- Male
- Sole proprietor
- No
- License
- A84799 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Bupropion Hclbrand: Bupropion Xl | 20 |
| Duloxetine Hcl | 17 |
| Lorazepam | 16 |
| Quetiapine Fumarate | 16 |
| Clozapine | 13 |
| Fluoxetine Hcl | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-15
- Last updated
- 2024-01-18
- Certified
- 2024-01-18
Frequently asked questions
- What is Jeffrey Millegan's NPI number?
- Jeffrey Millegan's National Provider Identifier (NPI) is 1831251719, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffrey Millegan's specialty?
- Jeffrey Millegan is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffrey Millegan located?
- Jeffrey Millegan's practice location on file with NPPES is 26565 Agoura Rd Ste 200, Calabasas, CA 91302-1990.
- What is Jeffrey Millegan's phone number?
- The practice phone number listed in the NPPES registry for Jeffrey Millegan is (844) 672-4863.
- Is Jeffrey Millegan's NPI active?
- Yes — Jeffrey Millegan's NPI (1831251719) is active in the NPPES registry as of the last update on 2024-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.