Active NPI
Mark Ryan Hermann
- Anesthesiology Physician
- Ventura, CA
National Provider Identifier
1851035919
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Anesthesiology Physician
- License
- A206399
- Practice address
- 147 N Brent St
Ventura, CA 93003-2854 - Phone
- (805) 948-5011
- NPI assigned
- Apr 25, 2022
- 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 |
|---|---|---|---|---|
| Anesthesiology Physician | 207L00000X | A206399 | CA | Primary |
Addresses
Primary practice location
147 N Brent St
Ventura, CA 93003-2854
Mailing address
147 N Brent St
Ventura, CA 93003-2809
Phone (805) 948-5011
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
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 310350 | NC | MD | Student in an Organized Health Care Education/Training Program |
Interoperability endpoints
- mhermann873577@direct.unc.nchie.net
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1650844800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783296000000",
"number": "1851035919",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "147 N BRENT ST",
"city": "VENTURA",
"state": "CA",
"postal_code": "930032809",
"telephone_number": "805-948-5011"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "147 N BRENT ST",
"city": "VENTURA",
"state": "CA",
"postal_code": "930032854",
"telephone_number": "805-948-5011"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HERMANN",
"first_name": "MARK",
"middle_name": "RYAN",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2022-04-25",
"last_updated": "2026-07-06",
"certification_date": "2026-07-06",
"status": "A"
},
"taxonomies": [
{
"code": "207L00000X",
"taxonomy_group": "",
"desc": "Anesthesiology",
"state": "CA",
"license": "A206399",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Ventura, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 6, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.