Xiang Da Dong, MD
General Surgery · Surgical Oncology (CMS) · Valhalla, NY
At a glance
100 Woods Rd, Valhalla, NY 10595-1530
Published activity: Colonoscopy · Hernia repair - groin (open) · Melanoma (skin cancer) excision. View counts and coverage
NPPES record updated Feb 18, 2021. Public records can lag behind changes at a practice.
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- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
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Check the official Medicare directory ↗Practice location
100 Woods RdValhalla, NY 10595-1530
Additional reported practice locations
24 Hospital AveDanbury, CT 068106099
Phone: 2037396752
Fax: 2037499087 24 Stevens St
Norwalk, CT 068503852
Phone: 2038454811
Fax: 2038995096 1 Webster Ave Ste 502
Poughkeepsie, NY 126011363
Phone: 9143727196 241 North Rd
Poughkeepsie, NY 126011154
Phone: 9143727196 19 Bradhurst Ave Ste 3050N
Hawthorne, NY 105322180
Phone: 9143727196 19 Bradhurst Ave Ste 2575S
Hawthorne, NY 105322140
Phone: 9143727196 27 Grand St
Kingston, NY 124013933
Phone: 9143727196
Education & affiliations
- Medical / professional school
- Duke University School Of Medicine
- Graduation year
- 1999
- CMS specialties
- General Surgery · Surgical Oncology
Practice groups
Reported hospital affiliations
- Danbury Hospital Danbury, CT
- Norwalk Hospital Norwalk, CT
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
| Procedure category | Published Medicare activity |
|---|---|
| Colonoscopy | 1-10 |
| Hernia repair - groin (open) | 1-10 |
| Melanoma (skin cancer) excision | 1-10 |
| Upper gastrointestinal (GI) endoscopy for acid reflux | 1-10 |
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $1,043.70 |
| Travel and lodging | $897.42 |
Reporting companies
| Company | Amount |
|---|---|
| HISTOSONICS, INC. | $1,168.06 |
| NOVARTIS PHARMACEUTICALS CORPORATION | $156.04 |
| MEDTRONIC, INC. | $91.35 |
| INTEGRA LIFESCIENCES CORPORATION | $74.27 |
| KERECIS LIMITED | $55.29 |
| VERTEX PHARMACEUTICALS INCORPORATED | $53.79 |
| RIGEL PHARMACEUTICALS, INC. | $52.55 |
| SUMITOMO PHARMA AMERICA, INC. | $40.24 |
| Other reporting companies | $249.53 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- General Surgery · Surgical Oncology (CMS)
- Taxonomy code
- 2086X0206X
- Enumeration date
- Feb 8, 2006
- Record updated
- Feb 18, 2021
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
208600000X
License reported: 259782 NY
208600000X
License reported: 45107 CT
2086X0206X
License reported: 45107 CT
2086X0206X · Primary
License reported: 259782 NY
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
100 Woods RdValhalla, NY 10595-1530
- Phone
- (914) 909-9018
- Fax
- (914) 493-2267
Mailing address
19 BRADHURST AVESUITE 3100N
HAWTHORNE, NY 105322140
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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