Active NPI
Leonard Michael Tyko II, DDS, MD
- General Practice Physician
- Santa Rosa, CA
National Provider Identifier
1770626921
On this page
Key facts
NPPES NPI Registry- Primary specialty
- General Practice Physician
- License
- A71195
- Practice address
- 1174 Montgomery Dr
Santa Rosa, CA 95405-4818 - Phone
- (707) 545-4625
- NPI assigned
- Feb 15, 2007
- Last updated
- Sep 11, 2025
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Oral and Maxillofacial Surgery (Dentist) | 1223S0112X | OMS031 | CA | |
| General Practice Physician | 208D00000X | A71195 | CA | Primary |
Addresses
Primary practice location
1174 Montgomery Dr
Santa Rosa, CA 95405-4818
Mailing address
1174 Montgomery Dr
Santa Rosa, CA 95405-4818
Phone (707) 545-4625
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
- Opted out of Medicare
- Yes, effective Jan 1, 2013 through Jan 1, 2027
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| OMS031 | CA | MD | Oral and Maxillofacial Surgery (Dentist) |
| 31 | CA | MD | Nurse Practitioner |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1171497600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1770626921",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "1174 MONTGOMERY DR",
"city": "SANTA ROSA",
"state": "CA",
"postal_code": "954054818",
"telephone_number": "707-545-4625"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1174 MONTGOMERY DR",
"city": "SANTA ROSA",
"state": "CA",
"postal_code": "954054818",
"telephone_number": "707-545-4625"
}
],
"practiceLocations": [],
"basic": {
"last_name": "TYKO",
"first_name": "LEONARD",
"middle_name": "MICHAEL",
"name_prefix": "Dr.",
"name_suffix": "II",
"credential": "DDS, MD",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2007-02-15",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "1223S0112X",
"taxonomy_group": "",
"desc": "Dentist, Oral and Maxillofacial Surgery",
"state": "CA",
"license": "OMS031",
"primary": false
},
{
"code": "208D00000X",
"taxonomy_group": "",
"desc": "General Practice",
"state": "CA",
"license": "A71195",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Santa Rosa, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 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; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.