DIANA NORTHNESS LMFT
NPI 1902464209
Marriage & Family Therapist in Windsor, CA
NPI Status: Active since May 31, 2019
Contact Information
8911 LAKEWOOD DR
WINDSOR, CA
ZIP 95492
Phone: (805) 232-4161
- Individual
- Female
- Marriage & Family Therapist
- Accepts Insurance
- PECOS Enrolled
- Opted-Out Medicare
About DIANA NORTHNESS
This page provides the complete NPI Profile along with additional information for Diana Northness, a provider established in Windsor, California with a medical specialization in Marriage & Family Therapist. The healthcare provider is registered in the NPI registry with number 1902464209 assigned on May 2019. The practitioner's primary taxonomy code is 106H00000X with license number 110394 (CA). The provider is registered as an individual and her NPI record was last updated April 2026.
- NPI
- 1902464209
- Provider Name
- DIANA NORTHNESS LMFT
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 8911 LAKEWOOD DR WINDSOR, CA 95492
- Location Phone
- (805) 232-4161
- Mailing Address
- 8911 LAKEWOOD DR STE 24C WINDSOR, CA 95492
- Mailing Phone
- (805) 232-4161
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 05-31-2019
- Last Update Date
- 04-13-2026
- Code Navigator
A marriage and family therapist like Diana Northness help patients manage problems with their family and other relationships. Marriage and family therapists encourage clients to discuss their emotions and experiences and, develop strategies and skills to change behavior and cope with difficult situations. Many therapists apply cognitive behavioral therapy to help patients understand harmful thoughts, feelings, and also teach patients how to replace them with positive, life-enhancing ones.
The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Diana Northness opted out of Medicare effective on 01-01-2024 until 01-01-2028. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Marriage & Family Therapist
- Taxonomy Code
- 106H00000X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 110394
- License State
- CA
- Taxonomy Description
- A marriage and family therapist is a person with a master's degree in marriage and family therapy, or a master's or doctoral degree in a related mental health field with substantially equivalent coursework in marriage and family therapy, who receives supervised clinical experience, or a person who meets the state requirements to practice as a marriage and family therapist. A marriage and family therapist treats mental and emotional disorders within the context of marriage and family systems. A marriage and family therapist provides mental health and counseling services to individuals, couples, families, and groups.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Connect 1500 Gold - EPO
- Connect 6000 Silver - EPO
- Connect 9800 Bronze - EPO
- HSA Qualified 7500 Bronze - Choice Network - EPO
- HSA-E Qualified 7500 Bronze - Signature Network - EPO
- Providence Oregon Standard Bronze Plan - Choice Network - EPO
- Providence Oregon Standard Bronze Plan - Signature Network - EPO
- Providence Oregon Standard Gold Plan - Choice Network - EPO
- Providence Oregon Standard Gold Plan - Signature Network - EPO
- Providence Oregon Standard Silver Plan - Choice Network - EPO
- Providence Oregon Standard Silver Plan - Signature Network - EPO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Diana Northness is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Opted-Out of Medicare? Yes
Opt-Out Effective Date: 01-01-2024
Opt-Out End Date: 01-01-2028
Eligible to Order and Refer? No
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): No
Eligible to Order or Refer Power Mobility Devices: No
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1902464209, we treat the final digit (9) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 61 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 6 providers are registered at the same or a nearby location.
WINDSOR, CA 95492
WINDSOR, CA 95492
WINDSOR, CA 95492
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1902464209, enumerated as an "individual" on May 31, 2019.
The provider is located at 8911 LAKEWOOD DR WINDSOR, CA 95492 and the phone number is (805) 232-4161.
Marriage & Family Therapist with taxonomy code 106H00000X.
The provider might be accepting Accepts: Providence Health Plan. Please consult your insurance carrier or call the provider to verify.
