Active NPI
Marianna Shakhnovits, M.D.
- Adult Medicine Physician
- Pasadena, CA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Adult Medicine Physician
- License
- A113415
- Practice address
- 100 W California Blvd
Pasadena, CA 91105-3010 - Phone
- (626) 795-2244
- NPI assigned
- Jul 22, 2008
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Adult Medicine Physician | 207QA0505X | A113415 | CA | Primary |
Addresses
Primary practice location
100 W California Blvd
Pasadena, CA 91105-3010
Mailing address
PO Box 35380
Las Vegas, NV 89133-5380
Phone (702) 579-3203
Other practice location 1
101 W Beverly Blvd
Ste 303
Montebello, CA 90640-4316
Phone (323) 837-5147
Other practice location 2
1500 Duarte Rd
Duarte, CA 91010-3012
Phone (626) 256-4673
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | direct@cityofhope.direct-ci.com | Direct | CITY OF HOPE MEDICAL FOUNDATION |
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
- Family Practice
- Education
- Other, 1984
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
2601 Via Campo
Montebello, CA 90640-1807
Phone (323) 720-1144
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 113415 | CA | MD | Clinical Social Worker |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| City of Hope Medical Foundation | Current | Accepting new patients | |
| Healthcare Partners Affiliates Medical Group | Adult Medicine | Current | Accepting new patients |
| Healthcare Partners Affiliates Medical Group | Current | Accepting new patients | |
| Memorial Medical Group Inc | Past | Accepting new patients | |
| St Vincent Hospice Services, Inc | Adult Medicine | Past | Accepting new patients |
Locations
1236 N Magnolia Ave
Anaheim, CA 92801
Phone (714) 995-1000
440 E Huntington Dr
Arcadia, CA 91006
Phone (626) 254-2293
5957 W Ramsey St
Banning, CA 92220
Phone (951) 845-8864
2910 Jefferson St
Ste 100
Carlsbad, CA 92008
Phone (760) 729-8600
824 E Carson St
Ste 104
Carson, CA 90745
Phone (310) 830-9706
1500 Duarte Rd
Duarte, CA 91010
Phone (626) 359-8111
2601 Via Campo
Montebello, CA 90640
Phone (323) 720-1144
100 W California Blvd
Pasadena, CA 91105
Phone (626) 397-3445
6939 Palm Ct
Riverside, CA 92506
Phone (760) 416-4832
1700 N Waterman Ave
Sn Bernrdno, CA 92404
Phone (909) 883-8611
209 Fair Oaks Ave
South Pasadena, CA 91030
Phone (626) 359-8111
Networks
- BSC 65 PLUS INDIVIDUAL MAPD
Interoperability endpoints
- mshakhnovits10841@cityofhope.direct-ci.com
- direct@cityofhope.direct-ci.com
Organizations & group practices 5
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.
-
- Internal Medicine Physician
- Los Angeles, CA
- NPI 1659312593
Adult Medicine
-
- Hematology & Oncology Physician
- Duarte, CA
- NPI 1871886366
-
- Durable Medical Equipment & Medical Supplies
- Murrieta, CA
- NPI 1760057269
-
- Community Based Hospice Care Agency
- Pasadena, CA
- NPI 1447666995
Adult Medicine
-
- Durable Medical Equipment & Medical Supplies
- Phoenix, AZ
- NPI 1255523643
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1216684800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1767916800000",
"number": "1568627222",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 35380",
"city": "LAS VEGAS",
"state": "NV",
"postal_code": "891335380",
"telephone_number": "702-579-3203"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "100 W CALIFORNIA BLVD",
"city": "PASADENA",
"state": "CA",
"postal_code": "911053010",
"telephone_number": "626-795-2244"
}
],
"practiceLocations": [
{
"address_1": "101 W Beverly Blvd",
"address_2": "STE 303",
"address_purpose": "LOCATION",
"city": "Montebello",
"state": "CA",
"postal_code": "906404316",
"country_code": "US",
"telephone_number": "323-837-5147",
"fax_number": "323-725-5063",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "1500 Duarte Rd",
"address_purpose": "LOCATION",
"city": "Duarte",
"state": "CA",
"postal_code": "910103012",
"country_code": "US",
"telephone_number": "626-256-4673",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "SHAKHNOVITS",
"first_name": "MARIANNA",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2008-07-22",
"last_updated": "2026-01-09",
"certification_date": "2026-01-09",
"status": "A"
},
"taxonomies": [
{
"code": "207QA0505X",
"taxonomy_group": "",
"desc": "Family Medicine, Adult Medicine",
"state": "CA",
"license": "A113415",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "direct@cityofhope.direct-ci.com",
"affiliation": "Y",
"affiliationName": "CITY OF HOPE MEDICAL FOUNDATION",
"use": "DIRECT",
"useDescription": "Direct",
"address_1": "1500 Duarte Rd",
"city": "Duarte",
"state": "CA",
"country_code": "US",
"postal_code": "910103012",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": []
}
Other providers in Pasadena, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 9, 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.
- 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.