2026 NPPES data Geriatric Psychiatry Physician NPI 1649408659 M.D.
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NEZAR EL-RUWIE, M.D.

Geriatric Psychiatry Physician in SAINT LOUIS, Missouri. 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
431
Medicare Part D claims · 63 beneficiaries · Geriatric Psychiatry Physician avg: 2K
Industry payments
$36.78
2 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

NEZAR EL-RUWIE, M.D. filed 431 Medicare Part D claims in 2023 as a Geriatric Psychiatry Physician in SAINT LOUIS, Missouri.

431
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

NEZAR EL-RUWIE, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

431 Top 38% higher than 62% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). This entry sits in this band. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

NEZAR EL-RUWIE, M.D. 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).

What does the federal data show about NEZAR EL-RUWIE, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/29/2009

NPI 1649408659

Primary specialty

Geriatric Psychiatry Physician

Niche

785 US NPIs in this specialty

Medicare Part D claims

431 73% vs specialty avg

2023 prescription claims

Specialty avg: 1,586

Specialty distribution in Missouri

How Geriatric Psychiatry Physician compares to other specialties among Missouri providers

Missouri providers

Geriatric Psychiatry Physician share within Missouri

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Geriatric 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).

NEZAR EL-RUWIE, M.D. appears in the CMS NPPES registry as a Geriatric Psychiatry Physician provider holding M.D. credentials at 10010 KENNERLY RD, SAINT LOUIS, MO, 63128, with a listed phone of (314) 525-1000. NPI 1649408659 was issued on 06/29/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what EL-RUWIE 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 431 prescription claims written by this provider, covering 63 Medicare beneficiaries and totaling roughly $58K 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.

Geriatric Psychiatry Physician is a narrow specialty nationwide, with 785 enrolled providers across 46 states and an average of 1,586 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

10010 KENNERLY RD
SAINT LOUIS, MO 63128

Provider Details

NPI 1649408659
Specialty Geriatric Psychiatry Physician
Credentials M.D.
Gender Male
NPI Issued 06/29/2009

Hospital and facility affiliations

Facilities where NEZAR EL-RUWIE, M.D. 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.

MERCY CLINIC ADULT HOSPITALISTS JEFFERSON LLC
FESTUS, MO
ST ANTHONYS PHYSICIAN ORGANIZATION HOSPITALIST SERVICES LC
SAINT LOUIS, MO

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

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for NEZAR EL-RUWIE, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$37

Largest payer

Otsuka America Pharmaceutical, Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Medicare Part D Prescribing Data

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

431
Total Claims
$58K
Total Drug Cost
63
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
438
Total Day Supply
10,846
Generic Drug Cost
$9K

Patient Demographics

Average Patient Age
60.5 years
Avg HCC Risk Score
1.65
Gender Split
40% female / 60% male
Age Distribution
<65: 34, 65-74: 22, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What NEZAR EL-RUWIE, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Escitalopram Oxalate
40
Mirtazapine
34
Duloxetine Hcl
30
Trazodone Hcl
22
Hydroxyzine Hcl
18
Lamotrigine
17
Atorvastatin Calcium
15
Buspirone Hcl
14
Donepezil Hcl
13
Primidone
13

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

Geriatric Psychiatry Physician Overview

How NEZAR EL-RUWIE, M.D. fits within the Geriatric Psychiatry Physician landscape nationally.

785
Geriatric Psychiatry Physician Providers in US
46
States with Geriatric Psychiatry Physician
1,586
Avg Claims per Provider

NEZAR EL-RUWIE, M.D.'s 431 claims are below the specialty average of 1,586.

Nearby Geriatric Psychiatry Physician Providers in Missouri

Other clinicians with the same primary specialty enrolled in Missouri, drawn from the same CMS NPPES roster as EL-RUWIE.

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

Frequently Asked Questions

What is NEZAR EL-RUWIE, M.D.'s specialty?
NEZAR EL-RUWIE, M.D. specializes in Geriatric Psychiatry Physician and practices in SAINT LOUIS, Missouri. Credentials: M.D..
How much does NEZAR EL-RUWIE, M.D. prescribe under Medicare Part D?
In 2023, NEZAR EL-RUWIE, M.D. wrote 431 Medicare Part D claims totaling $58K in drug costs for 63 beneficiaries.
Where is NEZAR EL-RUWIE, M.D. located?
NEZAR EL-RUWIE, M.D. is located at 10010 KENNERLY RD, SAINT LOUIS, MO, 63128. Phone: (314) 525-1000.
What is NEZAR EL-RUWIE, M.D.'s NPI number?
NEZAR EL-RUWIE, M.D.'s National Provider Identifier (NPI) is 1649408659, issued on 06/29/2009.
How many Geriatric Psychiatry Physician providers are there in the US?
There are 785 Geriatric Psychiatry Physician providers across 46 states in the US. The average Geriatric Psychiatry Physician provider writes 1,586 Medicare Part D claims per year.
What drugs does NEZAR EL-RUWIE, M.D. prescribe most often?
Based on 2023 Medicare Part D data, NEZAR EL-RUWIE, M.D.'s most frequently prescribed drugs include Escitalopram Oxalate, Mirtazapine, Duloxetine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NEZAR EL-RUWIE, M.D. accept Medicare?
NEZAR EL-RUWIE, M.D. appears in CMS Medicare data with 431 Part D claims and 63 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NEZAR EL-RUWIE, M.D.'s credentials?
NEZAR EL-RUWIE, M.D.'s NPI is 1649408659 with credentials M.D.. 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