Active NPI
Ronald William Jenkins, BCHIS-ACA
- Hearing Instrument Specialist
- Vallejo, CA
National Provider Identifier
1578536587
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Hearing Instrument Specialist
- License
- HA18390
- Practice address
- 1534 Tennessee St
Vallejo, CA 94590-4627 - Phone
- (707) 554-6660
- Fax
- (707) 558-1062
- NPI assigned
- Feb 9, 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 |
|---|---|---|---|---|
| Hearing Instrument Specialist | 237700000X | HA18390 | CA | Primary |
Addresses
Primary practice location
1534 Tennessee St
Vallejo, CA 94590-4627
Mailing address
1534 Tennessee St
Vallejo, CA 94590-4627
Phone (707) 554-6660
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| HA0018390 | 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)
- Not enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| HA18390 | CA | MD | Hearing Instrument Specialist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Advanced Instruments Inc. | Past | Accepting new patients |
Organizations & group practices 1
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.
-
dba Advanced Instruments of Vallejo
- Audiologist-Hearing Aid Fitter
- Vallejo, CA
- NPI 1235353137
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1139443200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1578536587",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1534 TENNESSEE ST",
"city": "VALLEJO",
"state": "CA",
"postal_code": "945904627",
"telephone_number": "707-554-6660",
"fax_number": "707-558-1062"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1534 TENNESSEE ST",
"city": "VALLEJO",
"state": "CA",
"postal_code": "945904627",
"telephone_number": "707-554-6660",
"fax_number": "707-558-1062"
}
],
"practiceLocations": [],
"basic": {
"last_name": "JENKINS",
"first_name": "RONALD",
"middle_name": "WILLIAM",
"name_prefix": "Mr.",
"credential": "BCHIS-ACA",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2006-02-09",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "237700000X",
"taxonomy_group": "",
"desc": "Hearing Instrument Specialist",
"state": "CA",
"license": "HA18390",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "HA0018390",
"state": "CA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Vallejo, 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.