Active NPI
Sierra Rheumatology Inc, a Professional Corporation
- Rheumatology Physician
- Rocklin, CA
National Provider Identifier
1548564735
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Rheumatology Physician
- License
- A97133
- Legal business name
- SIERRA RHEUMATOLOGY INC, A PROFESSIONAL CORPORATION
- Practice address
- 2207 Plaza Dr Ste 100
Rocklin, CA 95765-4415 - Phone
- (916) 677-4744
- Fax
- (916) 781-2029
- NPI assigned
- Jan 2, 2011
- 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
- Robinder Jeet Singh Dhillon, MD
- Title
- Managing Director
- Phone
- (916) 677-4744
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 | A97133 | CA | Primary |
Addresses
Primary practice location
2207 Plaza Dr Ste 100
Rocklin, CA 95765-4415
Mailing address
2207 Plaza Dr Ste 100
Rocklin, CA 95765-4415
Phone (916) 677-4744
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
Enrollment records 1
National Provider Directory
National Provider DirectoryLocations
2207 Plaza Dr
Rocklin, CA 95765
Practitioners & affiliated clinicians
Practitioners 2
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
-
- Rheumatology Physician
- Rancho Cordova, CA
- NPI 1841557477
-
- Emergency Medicine Physician
- Rocklin, CA
- NPI 1740422344
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1293926400000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1774828800000",
"number": "1548564735",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2207 PLAZA DR STE 100",
"city": "ROCKLIN",
"state": "CA",
"postal_code": "957654415",
"telephone_number": "916-677-4744",
"fax_number": "916-781-2029"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2207 PLAZA DR STE 100",
"city": "ROCKLIN",
"state": "CA",
"postal_code": "957654415",
"telephone_number": "916-677-4744",
"fax_number": "916-781-2029"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "SIERRA RHEUMATOLOGY INC, A PROFESSIONAL CORPORATION",
"organizational_subpart": "NO",
"enumeration_date": "2011-01-02",
"last_updated": "2026-03-30",
"certification_date": "2026-03-30",
"status": "A",
"authorized_official_last_name": "DHILLON",
"authorized_official_first_name": "ROBINDER",
"authorized_official_middle_name": "JEET SINGH",
"authorized_official_title_or_position": "MANAGING DIRECTOR",
"authorized_official_telephone_number": "916-677-4744",
"authorized_official_credential": "MD"
},
"taxonomies": [
{
"code": "207RR0500X",
"taxonomy_group": "193400000X SINGLE SPECIALTY GROUP",
"desc": "Internal Medicine, Rheumatology",
"state": "CA",
"license": "A97133",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Rocklin, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 30, 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.