2026 NPPES data Gynecologic Oncology Physician NPI 1699733808 M.D.
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CHAD HAMILTON, M.D.

Gynecologic Oncology Physician in ANNANDALE, Virginia. 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
104
Medicare Part D claims · 32 beneficiaries · Gynecologic Oncology Physician avg: 188
Industry payments
$47.3K
35 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CHAD HAMILTON, M.D. is a Gynecologic Oncology Physician ([object Object]) practicing in ANNANDALE, Virginia with a Medicare Part D prescribing footprint of 104 claims across 32 beneficiaries . Industry payments of $47.3K across 35 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CHAD HAMILTON, M.D. filed 104 Medicare Part D claims in 2023 across ANNANDALE, Virginia. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

CHAD HAMILTON, 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).

CHAD HAMILTON, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 05/04/2006

NPI 1699733808

Primary specialty

Gynecologic Oncology Physician

Niche

1,360 US NPIs in this specialty

Medicare Part D claims

104 45% vs specialty avg

2023 prescription claims

Specialty avg: 188

Specialty distribution in Virginia

How Gynecologic Oncology Physician compares to other specialties among Virginia providers

Virginia providers

Gynecologic Oncology Physician share within Virginia

1. Gynecologic Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Gynecologic Oncology Physician share within Virginia

Specialty board-certification context

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

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

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

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

CHAD HAMILTON, M.D. is a Gynecologic Oncology Physician provider practicing in ANNANDALE, Virginia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1699733808. 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.

CHAD HAMILTON, M.D. appears in the CMS NPPES registry as a Gynecologic Oncology Physician provider holding M.D. credentials at 3289 WOODBURN RD STE 320, ANNANDALE, VA, 22003, with a listed phone of (571) 308-1830. NPI 1699733808 was issued on 05/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HAMILTON 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 104 prescription claims written by this provider, covering 32 Medicare beneficiaries and totaling roughly $38K in drug spend, with an opioid prescribing rate of 13.5%. 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.

Gynecologic Oncology Physician is a narrow specialty nationwide, with 1,360 enrolled providers across 49 states and an average of 188 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

3289 WOODBURN RD STE 320
ANNANDALE, VA 22003

Provider Details

NPI 1699733808
Specialty Gynecologic Oncology Physician
Credentials M.D.
Gender Male
NPI Issued 05/04/2006

Hospital and facility affiliations

Facilities where CHAD HAMILTON, 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.

OCHSNER CLINIC LLC
NEW ORLEANS, LA
SOUTH LOUISIANA MEDICAL ASSOCIATES
HOUMA, LA

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 CHAD HAMILTON, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$47.3K

Largest payer

GlaxoSmithKline, 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.

104
Total Claims
$38K
Total Drug Cost
32
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
117
Total Day Supply
1,899
Generic Drug Cost
$2K
Opioid Claims
14 (13.5% rate)

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
1.62
Gender Split
100% female / 0% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Ondansetron Hcl
15

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

Gynecologic Oncology Physician Overview

How CHAD HAMILTON, M.D. fits within the Gynecologic Oncology Physician landscape nationally.

1,360
Gynecologic Oncology Physician Providers in US
49
States with Gynecologic Oncology Physician
188
Avg Claims per Provider

CHAD HAMILTON, M.D.'s 104 claims are below the specialty average of 188.

Nearby Gynecologic Oncology Physician Providers in Virginia

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

Compare Gynecologic Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHAD HAMILTON, M.D.'s specialty?
CHAD HAMILTON, M.D. specializes in Gynecologic Oncology Physician and practices in ANNANDALE, Virginia. Credentials: M.D..
How much does CHAD HAMILTON, M.D. prescribe under Medicare Part D?
In 2023, CHAD HAMILTON, M.D. wrote 104 Medicare Part D claims totaling $38K in drug costs for 32 beneficiaries.
Where is CHAD HAMILTON, M.D. located?
CHAD HAMILTON, M.D. is located at 3289 WOODBURN RD STE 320, ANNANDALE, VA, 22003. Phone: (571) 308-1830.
What is CHAD HAMILTON, M.D.'s NPI number?
CHAD HAMILTON, M.D.'s National Provider Identifier (NPI) is 1699733808, issued on 05/04/2006.
Does CHAD HAMILTON, M.D. prescribe opioids?
Yes, CHAD HAMILTON, M.D. had 14 opioid claims in 2023 with an opioid prescribing rate of 13.5%.
How many Gynecologic Oncology Physician providers are there in the US?
There are 1,360 Gynecologic Oncology Physician providers across 49 states in the US. The average Gynecologic Oncology Physician provider writes 188 Medicare Part D claims per year.
What drugs does CHAD HAMILTON, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHAD HAMILTON, M.D.'s most frequently prescribed drugs include Ondansetron Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHAD HAMILTON, M.D. accept Medicare?
CHAD HAMILTON, M.D. appears in CMS Medicare data with 104 Part D claims and 32 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHAD HAMILTON, M.D.'s credentials?
CHAD HAMILTON, M.D.'s NPI is 1699733808 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