2026 NPPES data Psychiatry Physician NPI 1588290431 MD
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ZACHARIAH ADHAM, MD

Psychiatry Physician in PORTLAND, Oregon. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
34
Medicare Part D claims · Psychiatry Physician avg: 1K
What the federal data reveals: ZACHARIAH ADHAM, MD is a Psychiatry Physician ([object Object]) practicing in PORTLAND, Oregon with a Medicare Part D prescribing footprint of 34 claims .

What stands out: ZACHARIAH ADHAM, MD filed 34 Medicare Part D claims in 2023 across PORTLAND, Oregon. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ZACHARIAH ADHAM, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ZACHARIAH ADHAM, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 03/22/2020

NPI 1588290431

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

34 97% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Oregon

How Psychiatry Physician compares to other specialties among Oregon providers

Oregon providers

Psychiatry Physician share within Oregon

1. Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatry Physician share within Oregon

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatry Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatry Physician ABMS/AOA estimate

Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatry Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

ZACHARIAH ADHAM, MD is a Psychiatry Physician provider practicing in PORTLAND, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1588290431. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ZACHARIAH ADHAM, MD appears in the CMS NPPES registry as a Psychiatry Physician provider holding MD credentials at 1225 NE 2ND AVE, PORTLAND, OR, 97232, with a listed phone of (503) 944-8000. NPI 1588290431 was issued on 03/22/2020. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ADHAM most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 34 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $326 in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1225 NE 2ND AVE
PORTLAND, OR 97232

Provider Details

NPI 1588290431
Specialty Psychiatry Physician
Credentials MD
Gender Male
NPI Issued 03/22/2020

Hospital and facility affiliations

Facilities where ZACHARIAH ADHAM, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

LEGACY EMANUEL HOSPITAL AND HEALTH CENTER
PORTLAND, OR
UNIVERSITY PROFESSIONAL SERVICES
PORTLAND, OR

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

34
Total Claims
$326
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
46
Total Day Supply
1,279
Generic Drug Cost
$259

Patient Demographics

Average Patient Age
63.3 years
Avg HCC Risk Score
1.10

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Quetiapine Fumarate
14
Lamotrigine
11

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Psychiatry Physician Overview

How ZACHARIAH ADHAM, MD fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

ZACHARIAH ADHAM, MD's 34 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Oregon

Other clinicians with the same primary specialty enrolled in Oregon, drawn from the same CMS NPPES roster as ADHAM.

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ZACHARIAH ADHAM, MD's specialty?
ZACHARIAH ADHAM, MD specializes in Psychiatry Physician and practices in PORTLAND, Oregon. Credentials: MD.
How much does ZACHARIAH ADHAM, MD prescribe under Medicare Part D?
In 2023, ZACHARIAH ADHAM, MD wrote 34 Medicare Part D claims totaling $326 in drug costs for N/A beneficiaries.
Where is ZACHARIAH ADHAM, MD located?
ZACHARIAH ADHAM, MD is located at 1225 NE 2ND AVE, PORTLAND, OR, 97232. Phone: (503) 944-8000.
What is ZACHARIAH ADHAM, MD's NPI number?
ZACHARIAH ADHAM, MD's National Provider Identifier (NPI) is 1588290431, issued on 03/22/2020.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does ZACHARIAH ADHAM, MD prescribe most often?
Based on 2023 Medicare Part D data, ZACHARIAH ADHAM, MD's most frequently prescribed drugs include Quetiapine Fumarate, Lamotrigine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ZACHARIAH ADHAM, MD accept Medicare?
ZACHARIAH ADHAM, MD appears in CMS Medicare data with 34 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ZACHARIAH ADHAM, MD's credentials?
ZACHARIAH ADHAM, MD's NPI is 1588290431 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology