Active NPI
Synergy Rheumatology PC
- Rheumatology Physician
- Carlsbad, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Rheumatology Physician
- Legal business name
- SYNERGY RHEUMATOLOGY PC
- Practice address
- 6120 Paseo del Norte Ste L2
Carlsbad, CA 92011-1149 - Phone
- (760) 891-4687
- Fax
- (760) 914-9990
- NPI assigned
- Nov 20, 2023
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Zachary Thomas Fellows, MD
- Title
- Ceo
- Phone
- (760) 891-4687
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Rheumatology Physician | 207RR0500X | Primary |
Addresses
Primary practice location
6120 Paseo del Norte Ste L2
Carlsbad, CA 92011-1149
Mailing address
6120 Paseo del Norte Ste L2
Carlsbad, CA 92011-1149
Phone (760) 891-4687
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| O20240207001131 | CA | Part B Supplier - Clinic/Group Practice | 1456794486 |
Receives reassigned benefits from 1 practitioner Practice locations: Carlsbad, CA |
National Provider Directory
National Provider DirectoryLocations
6120 Paseo del Norte
Ste C1
Carlsbad, CA 92011
Phone (760) 891-4687
6120 Paseo del Norte
Ste L2
Carlsbad, CA 92011
Phone (760) 891-4687
Practitioners & affiliated clinicians
Practitioners 1
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1700438400000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1768694400000",
"number": "1124893201",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6120 PASEO DEL NORTE STE L2",
"city": "CARLSBAD",
"state": "CA",
"postal_code": "920111149",
"telephone_number": "760-891-4687",
"fax_number": "760-684-8715"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "6120 PASEO DEL NORTE STE L2",
"city": "CARLSBAD",
"state": "CA",
"postal_code": "920111149",
"telephone_number": "760-891-4687",
"fax_number": "760-914-9990"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "SYNERGY RHEUMATOLOGY PC",
"organizational_subpart": "NO",
"enumeration_date": "2023-11-20",
"last_updated": "2026-01-18",
"certification_date": "2026-01-18",
"status": "A",
"authorized_official_last_name": "FELLOWS",
"authorized_official_first_name": "ZACHARY",
"authorized_official_middle_name": "THOMAS",
"authorized_official_title_or_position": "CEO",
"authorized_official_telephone_number": "760-891-4687",
"authorized_official_credential": "MD"
},
"taxonomies": [
{
"code": "207RR0500X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Internal Medicine, Rheumatology",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Carlsbad, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 18, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.