Active NPI
Ramesh V Nathan, MD
- Infectious Disease Physician
- Thousand Oaks, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Infectious Disease Physician
- License
- A77898
- Practice address
- 375 Rolling Oaks Dr Ste 210
Thousand Oaks, CA 91361-1028 - Phone
- (805) 495-1073
- Fax
- (805) 495-5836
- NPI assigned
- Oct 11, 2006
- Sex
- Male
- Sole proprietor
- No
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 |
|---|---|---|---|---|
| Infectious Disease Physician | 207RI0200X | A77898 | CA | Primary |
Addresses
Primary practice location
375 Rolling Oaks Dr Ste 210
Thousand Oaks, CA 91361-1028
Mailing address
375 Rolling Oaks Dr Ste 210
Thousand Oaks, CA 91361-1028
Phone (805) 495-1073
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| OOA778980 | Medicaid | CA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Infectious Disease
- Education
- George Washington University School of Medicine, 2000
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Telehealth
- Offers telehealth services
- Group practices
Practice addresses (Care Compare)
2220 Lynn Rd
Suite 301
Thousand Oaks, CA 91360-8005
Phone (805) 495-1073
Hospital & facility affiliations
- Angels of Summit Home Health
- Assisted Home Care
- Access TLC Home Health Care
- Los Robles Hospital & Medical Center
- Adventist Health Simi Valley
- Northridge Hospital Medical Center
Merit-based Incentive Payment System (MIPS)
- Final score
- 75 of 100
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| A77898 | CA | MD | Infectious Disease Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Mark H Mazur MD & Barry Statner MD a Professional Corporation | Infectious Disease | Current | Accepting new patients |
| Telehealth Specialty Medical Group | Infectious Disease | Current | Accepting new patients |
| Metro Infusion Center PLLC | Infectious Disease | Past | Accepting new patients |
| Tele-Medicine Services Ny, PLLC | Past | Accepting new patients | |
| Simi Valley Hospital and Health Care Services | Past | Accepting new patients | |
| Metro Infectious Disease Consultants, LLC | Infectious Disease | Past | Accepting new patients |
| Los Robles Regional Medical Center | Past | Accepting new patients |
Locations
2360 E Bidwell St
Ste 107
Folsom, CA 95630
Phone (916) 220-2951
4980 Barranca Pkwy
Ste 195
Irvine, CA 92604
Phone (949) 398-5280
4037 Hardwick St
Lakewood, CA 90712
1174 Castro St
Ste 150
Mountain View, CA 94040
24640 Jefferson Ave
Ste 208
Murrieta, CA 92562
Phone (951) 395-5457
301 S Fair Oaks Ave
Ste 304
Pasadena, CA 91105
Phone (626) 960-2711
15706 Pomerado Rd
Ste S202
Poway, CA 92064
2510 Douglas Blvd
Ste 300
Roseville, CA 95661
Phone (279) 600-4411
9050 Fairway Dr
Ste 125
Roseville, CA 95678
3400 Douglas Blvd
Ste 225
Roseville, CA 95661
Phone (916) 740-3721
3400 Douglas Blvd
Ste 170
Roseville, CA 95661
Phone (855) 446-8628
24355 Lyons Ave
Ste 160
Santa Clarita, CA 91321
Phone (661) 600-9494
27699 Jefferson Ave
Ste 311
Temecula, CA 92590
Phone (951) 693-1159
375 Rolling Oaks Dr
Ste 310
Thousand Oaks, CA 91361
2220 Lynn Rd
Ste 301
Thousand Oaks, CA 91360
Phone (805) 495-1073
375 Rolling Oaks Dr
Ste 210
Thousand Oaks, CA 91361
Phone (805) 495-1073
130 La Casa Via
Ste 108
Walnut Creek, CA 94598
901 McClintock Dr
Ste 202
Burr Ridge, IL 60527
Phone (630) 654-4201
Organizations & group practices 7
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Infectious Disease Physician
- Thousand Oaks, CA
- NPI 1376631341
-
dba TeleMed2U
- Emergency Medicine Physician
- Roseville, CA
- NPI 1326338237
Infectious Disease
-
dba Los Robles Hospital & Medical Center
- General Acute Care Hospital
- Thousand Oaks, CA
- NPI 1033163019
-
- General Acute Care Hospital
- Simi Valley, CA
- NPI 1063495190
-
- Internal Medicine Physician
- Roseville, CA
- NPI 1609663780
-
- Infectious Disease Physician
- Plymouth, MI
- NPI 1841530250
-
- Infectious Disease Physician
- Temple Terrace, FL
- NPI 1659862860
Hospital & facility affiliations 7
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Assisted Home Care
- Home Health Agency
- Mission Hills, CA
- NPI 1033156765
-
dba Assisted Home Care
- Home Health Agency
- Thousand Oaks, CA
- NPI 1831141845
-
dba Northridge Hospital Medical Center
- General Acute Care Hospital
- Northridge, CA
- NPI 1417089350
-
dba Los Robles Hospital & Medical Center
- General Acute Care Hospital
- Thousand Oaks, CA
- NPI 1306890389
-
- General Acute Care Hospital
- Simi Valley, CA
- NPI 1063495190
-
dba Angels of Summit Home Health
- Home Health Agency
- Simi Valley, CA
- NPI 1366528408
-
dba Access TLC Home Health Care
- Case Manager/Care Coordinator
- San Fernando, CA
- NPI 1619045176
Home health agency
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1160524800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1755475200000",
"number": "1215025291",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "375 ROLLING OAKS DR STE 210",
"city": "THOUSAND OAKS",
"state": "CA",
"postal_code": "913611028",
"telephone_number": "805-495-1073",
"fax_number": "805-495-5836"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "375 ROLLING OAKS DR STE 210",
"city": "THOUSAND OAKS",
"state": "CA",
"postal_code": "913611028",
"telephone_number": "805-495-1073",
"fax_number": "805-495-5836"
}
],
"practiceLocations": [],
"basic": {
"last_name": "NATHAN",
"first_name": "RAMESH",
"middle_name": "V",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-10-11",
"last_updated": "2025-08-18",
"certification_date": "2025-08-18",
"status": "A"
},
"taxonomies": [
{
"code": "207RI0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Infectious Disease",
"state": "CA",
"license": "A77898",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "OOA778980",
"state": "CA"
}
],
"endpoints": [],
"other_names": []
}
Other providers in Thousand Oaks, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 18, 2025; 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.
- Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.