NPPES file of Aug 9, 2026

Zachariah Omar Adham, MD

Psychiatry Physician · Portland, OR

Zachariah Omar Adham, MD is a psychiatry physician with a practice address in Portland, Oregon, and NPI 1588290431, issued on Mar 22, 2020. Check the license (Oregon MD213934, as entered in NPPES) on the Oregon Medical Board; 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
1588290431
Name
Zachariah Omar Adham
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
MD213934 OR
Self-reported in NPPES; status is on the state search
Practice location
1225 NE 2ND Ave, Portland, OR 97232
Phone
(503) 944-8000
Enumerated
Mar 22, 2020
Record last updated
Dec 17, 2024
Medicare enrollment
Enrolled (PECOS I20230302002283); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 2020
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1225 NE 2ND Ave

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

  1. Jonathan Allen, MDPsychiatry Physician1215557830
  2. Laura Barket, DOPsychiatry Physician1659614469
  3. Jeanne BereiterChild & Adolescent Psychiatry Physician1124033675
  4. Natalie Campen, MDPsychiatry Physician1588135263
  5. Morgan Campion, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1982014528
  6. Austin Chanthakhoun, PHARM.DPharmacist1235744699

Verify Zachariah Omar Adham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersOregon Medical Board
    Search for license MD213934
    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 Oregon license search

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94% fewer Medicare Part D claims than the average psychiatry physician in 2024

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

  1. Zachariah Adham56
  2. Specialty average1,000

Most prescribed

  1. Quetiapine Fumarate11 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.

Bills Medicare through 2 group practices

  1. Legacy Emanuel Hospital And Health CenterPortland, OR
  2. University Professional ServicesPortland, OR

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Zachariah Omar Adham among 764 psychiatry physician records in Oregon

Zachariah Omar Adham, MD is one of 764 psychiatry physician records with a practice address in Oregon. 59% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 91% of them.

  • NPI issued2020 · 91% of these records are older, 7% newer
  • In a Medicare fileYes · 59% of these records are
  • In the CMS Doctors and Clinicians fileYes · 39% of these records are
  • Graduated2020 · median 2009 among the 300 with a school on file
  • Record last updated2024 · 58% 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 Oregon practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Oregon

There are 764 psychiatry physician records in Oregon.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Jules Altfas, M.D.Portland, OR 972321174700348
  2. James Conour, MDPortland, OR 972321174679617
  3. Paul Giger, MDPortland, OR 972321154357366
  4. Allison Hadley, M.D.Portland, OR 972321710027396
  5. Thomas Hansen, M.D.Portland, OR 972321275643249
  6. Ronald Heintz, MDPortland, OR 972321407950629
  7. Lyle Jobe, MDPortland, OR 972321912963299
  8. Bruce Johnstone, MDPortland, OR 972321669576898

Common questions

What is Zachariah Omar Adham, MD's NPI number?

Zachariah Omar Adham, MD's National Provider Identifier (NPI) is 1588290431, issued on Mar 22, 2020. An NPI identifies a provider in billing; it is not a license.

Where is Zachariah Omar Adham, MD located?

The NPPES record lists a practice address at 1225 NE 2ND Ave, Portland, OR, 97232. Phone: (503) 944-8000. Providers update this record themselves, so call before visiting.

How can I verify Zachariah Omar Adham, MD's license?

NPPES lists Oregon license number MD213934, as entered by the provider. Search the Oregon Medical Board at https://www.oregon.gov/OMB/Pages/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Zachariah Omar Adham, MD prescribe under Medicare Part D?

In 2024, Zachariah Omar Adham, MD had 56 Medicare Part D claims; 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.