Active NPI
Melissa Dang, MD
- Allergy & Immunology Physician
- Orange, CA
National Provider Identifier
1609453398
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Allergy & Immunology Physician
- License
- A211755
- Practice address
- 101 The City Dr S
Orange, CA 92868-3201 - Phone
- (714) 456-5636
- NPI assigned
- Mar 27, 2021
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Allergy & Immunology Physician | 207K00000X | A211755 | CA | Primary |
Addresses
Primary practice location
101 The City Dr S
Orange, CA 92868-3201
Mailing address
101 The City Dr S Ste 400
Orange, CA 92868-3201
Phone (714) 456-5691
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CO
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20240712001279 | CO | Order and Referring Only - Allergy/Immunology | 0446795595 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1616803200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788480000000",
"number": "1609453398",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "101 THE CITY DR S STE 400",
"city": "ORANGE",
"state": "CA",
"postal_code": "928683201",
"telephone_number": "714-456-5691",
"fax_number": "714-456-8874"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "101 THE CITY DR S",
"city": "ORANGE",
"state": "CA",
"postal_code": "928683201",
"telephone_number": "714-456-5636"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DANG",
"first_name": "MELISSA",
"credential": "MD",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2021-03-27",
"last_updated": "2026-09-04",
"certification_date": "2026-09-04",
"status": "A"
},
"taxonomies": [
{
"code": "207K00000X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Allergy & Immunology",
"state": "CA",
"license": "A211755",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Orange, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 4, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.