Active NPI
Cynthia Ann Forsthoff, M.D.
- Specialist
- Long Beach, CA
National Provider Identifier
1841250719
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Specialist
- License
- G59518
- Practice address
- 2653 Elm Ave
Ste 300
Long Beach, CA 90806-1652 - Phone
- (562) 595-7335
- Fax
- (562) 427-3375
- NPI assigned
- Mar 24, 2006
- 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 |
|---|---|---|---|---|
| Specialist | 174400000X | G59518 | CA | Primary |
Addresses
Primary practice location
2653 Elm Ave
Ste 300
Long Beach, CA 90806-1652
Mailing address
2650 Elm Ave
Ste 301
Long Beach, CA 90806-1651
Phone (562) 595-7335
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| GR0029650 | Medicaid | CA |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| G59518 | CA | MD | Specialist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Jack F Jacoub MD Inc | Past | Accepting new patients | |
| Oncology Hematology Consultants | Specialist | Past | Accepting new patients |
| Memorial Medical Group Inc | Past | Accepting new patients | |
| Link Institute for Women'S Health | Specialist | Past | Accepting new patients |
Interoperability endpoints
- https://fhir.nextgen.com/nge/prod/fhir-api-r4/fhir/r4/
- cynthia.forsthoff.p7@direct.scoa.nextgenshare.com
Organizations & group practices 4
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.
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- NPI 1619208279
-
- Specialist
- Huntington Beach, CA
- NPI 1235202250
-
- 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": "1143158400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1841250719",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2650 ELM AVE",
"address_2": "STE 301",
"city": "LONG BEACH",
"state": "CA",
"postal_code": "908061651",
"telephone_number": "562-595-7335",
"fax_number": "562-988-1655"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2653 ELM AVE",
"address_2": "STE 300",
"city": "LONG BEACH",
"state": "CA",
"postal_code": "908061652",
"telephone_number": "562-595-7335",
"fax_number": "562-427-3375"
}
],
"practiceLocations": [],
"basic": {
"last_name": "FORSTHOFF",
"first_name": "CYNTHIA",
"middle_name": "ANN",
"name_prefix": "Dr.",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2006-03-24",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "174400000X",
"taxonomy_group": "",
"desc": "Specialist",
"state": "CA",
"license": "G59518",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "GR0029650",
"state": "CA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Long Beach, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.