2026 NPPES data Child & Adolescent Psychiatry Physician NPI 1679716013 MD
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NGA HUYNH, MD

Child & Adolescent Psychiatry Physician in MEMPHIS, Tennessee. 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
158
Medicare Part D claims · 33 beneficiaries · Child & Adolescent Psychiatry Physician avg: 600
Industry payments
$140.42
7 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: NGA HUYNH, MD is a Child & Adolescent Psychiatry Physician ([object Object]) practicing in MEMPHIS, Tennessee with a Medicare Part D prescribing footprint of 158 claims across 33 beneficiaries . Industry payments of $140.42 across 7 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: NGA HUYNH, MD filed 158 Medicare Part D claims in 2023 across MEMPHIS, Tennessee. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

NGA HUYNH, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 4 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

NGA HUYNH, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 04/15/2009

NPI 1679716013

Primary specialty

Child & Adolescent Psychiatry Physician

Mid-sized

6,160 US NPIs in this specialty

Medicare Part D claims

158 74% vs specialty avg

2023 prescription claims

Specialty avg: 600

Specialty distribution in Tennessee

How Child & Adolescent Psychiatry Physician compares to other specialties among Tennessee providers

Tennessee providers

Child & Adolescent Psychiatry Physician share within Tennessee

1. Child & Adolescent Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Child & Adolescent Psychiatry Physician share within Tennessee

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Child & Adolescent 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).

NGA HUYNH, MD is a Child & Adolescent Psychiatry Physician provider practicing in MEMPHIS, Tennessee, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1679716013. 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.

NGA HUYNH, MD appears in the CMS NPPES registry as a Child & Adolescent Psychiatry Physician provider holding MD credentials at 1661 INTERNATIONAL DR STE 400, MEMPHIS, TN, 38120, with a listed phone of (901) 720-5101. NPI 1679716013 was issued on 04/15/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HUYNH 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 158 prescription claims written by this provider, covering 33 Medicare beneficiaries and totaling roughly $21K 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.

Child & Adolescent Psychiatry Physician is a mid-sized specialty nationwide, with 6,160 enrolled providers across 54 states and an average of 600 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

1661 INTERNATIONAL DR STE 400
MEMPHIS, TN 38120

Provider Details

NPI 1679716013
Specialty Child & Adolescent Psychiatry Physician
Credentials MD
Gender Female
NPI Issued 04/15/2009

Hospital and facility affiliations

Facilities where NGA HUYNH, 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.

CHANGES BEHAVIORAL HEALTH, LLC
WYNNE, AR
CRESTWYN HEALTH GROUP, LLC
MEMPHIS, TN
INTEGRATIVE NEUROSCIENCE PLLC
MEMPHIS, TN
MODERN PSYCHIATRY NJ PC
TOMS RIVER, NJ

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 NGA HUYNH, MD. Source: openpaymentsdata.cms.gov.

Total received

$140

Largest payer

Lundbeck LLC

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.

158
Total Claims
$21K
Total Drug Cost
33
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
158
Total Day Supply
4,726
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
55.5 years
Avg HCC Risk Score
1.32
Gender Split
67% female / 33% male
Age Distribution
<65: 20, 65-74: N/A, 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.

Drug Claims
Olanzapine
22
Lithium Carbonate
18
Clonidine Hcl
12
Sertraline Hcl
12
Haloperidol
11

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

Child & Adolescent Psychiatry Physician Overview

How NGA HUYNH, MD fits within the Child & Adolescent Psychiatry Physician landscape nationally.

6,160
Child & Adolescent Psychiatry Physician Providers in US
54
States with Child & Adolescent Psychiatry Physician
600
Avg Claims per Provider

NGA HUYNH, MD's 158 claims are below the specialty average of 600.

Nearby Child & Adolescent Psychiatry Physician Providers in Tennessee

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

Compare Child & Adolescent Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is NGA HUYNH, MD's specialty?
NGA HUYNH, MD specializes in Child & Adolescent Psychiatry Physician and practices in MEMPHIS, Tennessee. Credentials: MD.
How much does NGA HUYNH, MD prescribe under Medicare Part D?
In 2023, NGA HUYNH, MD wrote 158 Medicare Part D claims totaling $21K in drug costs for 33 beneficiaries.
Where is NGA HUYNH, MD located?
NGA HUYNH, MD is located at 1661 INTERNATIONAL DR STE 400, MEMPHIS, TN, 38120. Phone: (901) 720-5101.
What is NGA HUYNH, MD's NPI number?
NGA HUYNH, MD's National Provider Identifier (NPI) is 1679716013, issued on 04/15/2009.
How many Child & Adolescent Psychiatry Physician providers are there in the US?
There are 6,160 Child & Adolescent Psychiatry Physician providers across 54 states in the US. The average Child & Adolescent Psychiatry Physician provider writes 600 Medicare Part D claims per year.
What drugs does NGA HUYNH, MD prescribe most often?
Based on 2023 Medicare Part D data, NGA HUYNH, MD's most frequently prescribed drugs include Olanzapine, Lithium Carbonate, Clonidine Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NGA HUYNH, MD accept Medicare?
NGA HUYNH, MD appears in CMS Medicare data with 158 Part D claims and 33 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NGA HUYNH, MD's credentials?
NGA HUYNH, MD's NPI is 1679716013 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