COURTENAY IRENE HOUK MA, LMFT
NPI 1104585538
Counselor - Mental Health in Kentfield, CA
NPI Status: Active since December 13, 2021
Contact Information
1030 SIR FRANCIS DRAKE BLVD STE 100-3
KENTFIELD, CA
ZIP 94904
Phone: (415) 360-1991
- Individual
- Female
- Counselor
- Mental Health
- Opted-Out Medicare
About COURTENAY HOUK
This page provides the complete NPI Profile along with additional information for Courtenay Houk, a provider established in Kentfield, California with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1104585538 assigned on December 2021. The practitioner's primary taxonomy code is 101YM0800X with license number 147820 (CA). The provider is registered as an individual and her NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.
- NPI
- 1104585538
- Provider Name
- COURTENAY IRENE HOUK MA, LMFT
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 1030 SIR FRANCIS DRAKE BLVD STE 100-3 KENTFIELD, CA 94904
- Location Phone
- (415) 360-1991
- Mailing Address
- 1030 SIR FRANCIS DRAKE BLVD STE 100-3 KENTFIELD, CA 94904
- Mailing Phone
- (415) 360-1991
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 12-13-2021
- Last Update Date
- 10-18-2025
- Code Navigator
A mental health counselor like Courtenay Houk provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.
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. Courtenay Houk opted out of Medicare effective on 08-19-2024 until 08-19-2026. 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
Counselor Mental Health
- Taxonomy Code
- 101YM0800X
- Type
- Behavioral Health & Social Service Providers
- License No.
- 147820
- License State
- CA
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
Medicare Participation & PECOS Enrollment Status
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.
Opted-Out of Medicare? Yes
Opt-Out Effective Date: 08-19-2024
Opt-Out End Date: 08-19-2026
Eligible to Order and Refer? 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 1104585538, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).
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 52 is 60. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1104585538, enumerated as an "individual" on December 13, 2021.
The provider is located at 1030 SIR FRANCIS DRAKE BLVD STE 100-3 KENTFIELD, CA 94904 and the phone number is (415) 360-1991.
Counselor with taxonomy code 101YM0800X and a focus in Mental Health.
