DR. STEPHEN CURTIS WONG M.D.
NPI 1104977008
Allergy & Immunology - Allergy in Hacienda Heights, CA

Q: What is Stephen Wong's NPI number?

The NPI number for Stephen Wong is 1104977008. It was assigned to this individual provider in the NPPES registry on January 16, 2007.

Q: What is Stephen Wong's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Q: When was this NPI record last updated?

The NPPES record for Stephen Wong was last updated on May 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 16, 2007PECOS EnrolledAccepts Medicare Assignment

1850 S AZUSA AVE, SUITE 206, HACIENDA HEIGHTS, CA 91745(626) 810-5450(626) 810-0391 Get Directions Write a Review

NPPES record last updated: May 29, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Dr. Stephen Curtis Wong M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. STEPHEN CURTIS WONG M.D. (NPI 1104977008) is an individual allergy provider in Hacienda Heights, California, licensed in California (G51644) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, San Francisco School Of Medicine (1982).

NPPES Registry Identity

NPI1104977008

Entity TypeIndividualMale

Primary Taxonomy207KA0200X

Provider Legal NameDR. STEPHEN CURTIS WONGCredential: M.D.

Location Address1850 S AZUSA AVE, SUITE 206Hacienda Heights, CA 91745-6813

Mailing Address1850 S Azusa Ave Ste 206Hacienda Heights, CA 91745-6853 · (626) 810-5450 · Fax (626) 810-0391

Phone(626) 810-5450

Fax(626) 810-0391

Sole ProprietorYes

Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 1982

Enumeration DateJanuary 16, 2007

Last NPPES UpdateMay 29, 2026

NPPES CertifiedMay 29, 2026

✔ NPI 1104977008 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians

Taxonomy Code207KA0200X

License✔ Licensed in CA · G51644

Definition

A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee

1850 S AZUSA AVE, Hacienda Heights, CA 91745

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Secondary Practice Locations 2

Location 1207 S Santa Anita St Ste 335San Gabriel, CA 91776-1160 · Phone (760) 941-4444 · Fax (760) 941-8902

Location 2330 S Garfield Ave Ste 116Alhambra, CA 91801-3893 · Phone (626) 284-3400

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Stephen Curtis Wong M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9335286574

PECOS Enrollment IDI20091021000349

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 10

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Test for allergy using allergenic extract 95004

An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.

1,838 services24 patients

Professional service for preparation and provision of 1 or more antigens 95165

This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.

1,195 services39 patients

Test for allergy using skin patch 95044

A skin patch test helps identify allergens causing skin reactions. Small patches with potential allergens are applied to your skin, usually on the back. After 48 hours, they are removed to check for reactions. It's a safe and effective way to diagnose allergies.

1,152 services18 patients

Professional service for multiple injections of allergen 95117

The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.

546 services41 patients

Test for allergy using allergenic extract injected into skin 95024

An allergy skin test involves injecting a small amount of allergenic extract into your skin. This test helps determine if you're allergic to specific substances. If allergic, a small red bump appears at the test site. It's safe and quick.

207 services19 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

142 services110 patients

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Budesonide, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose form, up to 0.5 mg J7626

DME-Drugs Administered Through DME · category DG000N

2 suppliers11 claims660 services$0.67 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

6 suppliers17 claims17 services$21.48 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PUENTE HILLS PHARMACY

Pharmacy (Community/Retail Pharmacy)

1850 S AZUSA AVE, SUITE 101
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 912-3311

MRS. JANE S GU MD

Pediatrics

1850 S AZUSA AVE, SUITE 205
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 964-2880

GARLAN G. LO M.D.

Ophthalmology

1850 S AZUSA AVE, STE 107
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 912-6888

MR. ANTHONY C. CHEN M.D.

Internal Medicine

1850 S AZUSA AVE, SUITE 102
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 912-2682

ERNESTO G ONG M.D.

Pediatrics

1850 S AZUSA AVE
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 964-6012

RAYMOND WONG PHARM.D.

Durable Medical Equipment & Medical Supplies

1850 S AZUSA AVE, SUITE 101
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 912-3311

PIH HEALTH PHYSICIANS

Family Medicine

1850 S AZUSA AVE
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 964-3040

YU HONG CHEN NP

Nurse Practitioner (Primary Care)

1850 S AZUSA AVE, SUITE 308
HACIENDA HEIGHTS, CA 91745

Los Angeles County (626) 854-7866

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Wong's NPI number?

The NPI number for Stephen Wong is 1104977008. It was assigned to this individual provider in the NPPES registry on January 16, 2007.

Where is Stephen Wong located?

Stephen Wong practices at 1850 S Azusa Ave Suite 206, Hacienda Heights, CA 91745. The listed phone number is (626) 810-5450.

What is Stephen Wong's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is Stephen Wong enrolled in Medicare?

Yes. Stephen Wong is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Stephen Wong was last updated on May 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.