MRS. ISABEL ARCHER-BLASCHKA LMFT#152712
NPI 1811708647
Counselor - Mental Health in Pleasanton, CA
NPI Status: Active since January 20, 2025
Contact Information
5502 SUNOL BLVD., SUITE 106
PLEASANTON, CA
ZIP 94566
Phone: (408) 203-2035
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Female
- Counselor
- Mental Health
- PECOS Enrolled
About ISABEL ARCHER-BLASCHKA
This page provides the complete NPI Profile along with additional information for Isabel Archer-blaschka, a provider established in Pleasanton, California with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1811708647 assigned on January 2025. The practitioner's primary taxonomy code is 101YM0800X with license number 152712 (CA). The provider is registered as an individual and her NPI record was last updated June 2026. 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
- 1811708647
- Provider Name
- MRS. ISABEL ARCHER-BLASCHKA LMFT#152712
- Other Name
- MRS. ISABEL ARCHER
- Other Name Type
- Former Name (1)
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 5502 SUNOL BLVD., SUITE 106 PLEASANTON, CA 94566
- Location Phone
- (408) 203-2035
- Mailing Address
- 3840 PRINCETON WAY LIVERMORE, CA 94550
- Mailing Phone
- (408) 203-2035
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-20-2025
- Last Update Date
- 06-23-2026
- Code Navigator
A mental health counselor like Isabel Archer-blaschka 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.
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.
- 152712
- 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
Isabel Archer-blaschka 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
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 1811708647, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).
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 63 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1811708647, enumerated as an "individual" on January 20, 2025.
The provider is located at 5502 SUNOL BLVD., SUITE 106 PLEASANTON, CA 94566 and the phone number is (408) 203-2035.
Counselor with taxonomy code 101YM0800X and a focus in Mental Health.
