DR. CHAD ANDREW HAMILTON (M.D.) – Gynecologic Oncology Physician, NPI 1699733808
Gynecologic Oncology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
181 GYNECOLOGICAL ONCOLOGY in CA
Provider Addresses for DR. CHAD ANDREW HAMILTON (M.D.)
300 Pasteur Dr
HH333
Stanford, CA 943052200
Phone: (650) 498-8080
Fax: (650) 723-7448
Type: Location
Woodburn Road, Annandale, Fairfax County, Virginia, 22003, United States
ANNANDALE, VA 220037354
Phone: (571) 308-1830
Fax: (571) 308-1843
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 56 Open Payments records for all available years, with a total value of $73,425.
Total Amount is formed as General ($73,425) + Research ($0) + Ownership ($0) = $73,425.
Last reported payment date: 2024-12-23 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($47,952).
Total Amount
$73,425
General + Research + Ownership
Payments
56
Total payment records
General Amount
$73,425
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-23
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| GlaxoSmithKline, LLC. | $47,952 |
| AstraZeneca Pharmaceuticals LP | $13,260 |
| Merck Sharp & Dohme LLC | $5,996 |
| ABBVIE INC. | $5,791 |
| Intuitive Surgical, Inc. | $220 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2020-11-11
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20201111001944 | I | Gynecological Oncology | LA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 48 | 15 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 45 | 29 | $0 |
Insurance plans in this area (ZIP 94305)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | LA | |
| O P T O M E T R Y | LA | |
| Cardiovascular Disease (Cardiology), Internal Medicine | PA | |
| - | LA | |
| N E U R O L O G Y | LA | |
| Nurse Practitioner | LA | |
| Family Practice | CO | |
| Nurse Practitioner | LA | |
| U R O L O G Y | LA | |
| N E U R O L O G Y | LA |
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