Stephen Curtis Wong, M.D.
Allergy/Immunology · Internal Medicine (CMS) · Hacienda Heights, CA
At a glance
1850 S Azusa Ave, Hacienda Heights, CA 91745-6813
NPPES record updated May 29, 2026. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- 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
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
1850 S Azusa Ave Suite 206Hacienda Heights, CA 91745-6813
Additional reported practice locations
207 S Santa Anita St Ste 335San Gabriel, CA 917761160
Phone: 7609414444
Fax: 7609418902 330 S Garfield Ave Ste 116
Alhambra, CA 918013893
Phone: 6262843400
Education & affiliations
- Medical / professional school
- University Of California, San Francisco School Of Medicine
- Graduation year
- 1982
- CMS specialties
- Allergy/Immunology · Internal Medicine
CMS reports telehealth services for this clinician. Confirm current services and availability with the practice.
Practice groups
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.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
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 |
|---|---|
| Services other than consulting | $6,450.00 |
| Food and beverage | $649.32 |
| Travel and lodging | $35.00 |
| Education | $34.00 |
Reporting companies
| Company | Amount |
|---|---|
| ASTRAZENECA PHARMACEUTICALS LP | $7,051.65 |
| AMGEN INC. | $59.91 |
| GLAXOSMITHKLINE, LLC. | $31.02 |
| REGENERON HEALTHCARE SOLUTIONS, INC. | $25.74 |
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
- Allergy/Immunology · Internal Medicine (CMS)
- Taxonomy code
- 207KA0200X
- Enumeration date
- Jan 16, 2007
- Record updated
- May 29, 2026
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- M.D.
Reported taxonomies and licenses
207KA0200X · Primary
License reported: G51644 CA
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
1850 S Azusa AveSuite 206
Hacienda Heights, CA 91745-6813
- Phone
- (626) 810-5450
- Fax
- (626) 810-0391
Mailing address
1850 S AZUSA AVE STE 206HACIENDA HEIGHTS, CA 917456853
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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