NPPES file of Aug 9, 2026

Jeffrey Millegan, MD, MPH

Psychiatry Physician · Oakland, CA

Jeffrey Millegan, MD, MPH is a psychiatry physician with a practice address in Oakland, California, and NPI 1831251719, issued on Dec 15, 2006. Check the license (California A84799, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831251719
Name
Jeffrey Millegan
Credential
MD, MPH
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
A84799 CA
MD-22374 HI
Self-reported in NPPES; status is on the state search
Practice location
1300 Clay St, Oakland, CA 94612
Phone
(510) 752-1075
Enumerated
Dec 15, 2006
Record last updated
Jun 17, 2026
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1300 Clay St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mechel Henry, M.D.Physical Medicine & Rehabilitation Physician1639131212
  2. Sandra Smith, PHDClinical Psychologist1124266242

Verify Jeffrey Millegan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A84799
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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77% fewer Medicare Part D claims than the average psychiatry physician in 2024

227 Medicare Part D claims for 40 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. Jeffrey Millegan227
  2. Specialty average1,000

Most prescribed

  1. Bupropion Xl20 claims
  2. Duloxetine Hcl17 claims
  3. Lorazepam16 claims
  4. Quetiapine Fumarate16 claims
  5. Clozapine13 claims
  6. Fluoxetine Hcl12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Jeffrey Millegan among 8,673 psychiatry physician records in California

Jeffrey Millegan, MD, MPH is one of 8,673 psychiatry physician records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 67% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 38% of these records are
  • Record last updated2026 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in California

There are 8,673 psychiatry physician records in California.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Aislinn BirdOakland, CA 946121013084607
  2. Miles Driscoll, M.D.Oakland, CA 946121013124890
  3. Kermit JohnsonOakland, CA 946121154533230
  4. Cecile Lee, M.D.Oakland, CA 946121508991472
  5. Satoko Miyamoto, D.O.Oakland, CA 946121588839146
  6. James Robbins, M.D.Oakland, CA 946121114062924
  7. Harvey Rosenthal, MDOakland, CA 946121396823159
  8. Rachna Saralkar, M.D.Oakland, CA 946121376832162

Common questions

What is Jeffrey Millegan, MD, MPH's NPI number?

Jeffrey Millegan, MD, MPH's National Provider Identifier (NPI) is 1831251719, issued on Dec 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Jeffrey Millegan, MD, MPH located?

The NPPES record lists a practice address at 1300 Clay St, Oakland, CA, 94612. Phone: (510) 752-1075. Providers update this record themselves, so call before visiting.

How can I verify Jeffrey Millegan, MD, MPH's license?

NPPES lists California license number A84799, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Jeffrey Millegan, MD, MPH prescribe under Medicare Part D?

In 2024, Jeffrey Millegan, MD, MPH had 227 Medicare Part D claims for 40 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.