Active NPI
James E. Nirenstein, PH.D. M.F.T.
- Marriage & Family Therapist
- Walnut Creek, CA
National Provider Identifier
1699794156
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Marriage & Family Therapist
- License
- M12843
- Practice address
- 45 Quail CT Ste 200
Walnut Creek, CA 94596-8729 - Phone
- (925) 934-6943
- Fax
- (925) 838-8586
- NPI assigned
- Jul 18, 2006
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Marriage & Family Therapist | 106H00000X | M12843 | CA | Primary |
Addresses
Primary practice location
45 Quail CT Ste 200
Walnut Creek, CA 94596-8729
Mailing address
45 Quail CT Ste 200
Walnut Creek, CA 94596-8729
Phone (925) 934-6943
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Opted out of Medicare
- Yes, effective Feb 15, 2024 through Feb 15, 2028
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Doctor of Philosophy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| M12843 | CA | MD | Marriage & Family Therapist |
| 12843 | CA | MD | Gastroenterology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1153180800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1183852800000",
"number": "1699794156",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "45 QUAIL CT STE 200",
"city": "WALNUT CREEK",
"state": "CA",
"postal_code": "945968729",
"telephone_number": "925-934-6943",
"fax_number": "925-838-8586"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "45 QUAIL CT STE 200",
"city": "WALNUT CREEK",
"state": "CA",
"postal_code": "945968729",
"telephone_number": "925-934-6943",
"fax_number": "925-838-8586"
}
],
"practiceLocations": [],
"basic": {
"last_name": "NIRENSTEIN",
"first_name": "JAMES",
"middle_name": "E.",
"name_prefix": "Dr.",
"credential": "PH.D. M.F.T.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-07-18",
"last_updated": "2007-07-08",
"status": "A"
},
"taxonomies": [
{
"code": "106H00000X",
"taxonomy_group": "",
"desc": "Marriage & Family Therapist",
"state": "CA",
"license": "M12843",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Walnut Creek, CA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2007; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Opt Out Affidavits.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.