MR. CHRISTOPHER ALEXANDER DUERRMEIER M.A., ED.M., LMFT
NPI 1326243064
Counselor - Mental Health in Danville, CA

NPI Status: Active since June 20, 2007

Contact Information

115 TOWN AND COUNTRY DR STE A
DANVILLE, CA
ZIP 94526
Phone: (925) 837-0505

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Insurance Plans Accepted
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Counselor
Mental Health

About CHRISTOPHER DUERRMEIER

This page provides the complete NPI Profile along with additional information for Christopher Duerrmeier, a provider established in Danville, California with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1326243064 assigned on June 2007. The practitioner's primary taxonomy code is 101YM0800X with license number 53217 (CA). The provider is registered as an individual and his NPI record was last updated 7 years ago.

NPI: 1326243064
Provider Name: MR. CHRISTOPHER ALEXANDER DUERRMEIER M.A., ED.M., LMFT
Gender: Male
Entity Type: Individual
Location Address: 115 TOWN AND COUNTRY DR STE A DANVILLE, CA 94526
Location Phone: (925) 837-0505
Mailing Address: 115 TOWN AND COUNTRY DR STE A DANVILLE, CA 94526
Mailing Phone: (925) 837-0505
Is Sole Proprietor?: Yes
Enumeration Date: 06-20-2007
Last Update Date: 08-22-2019
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A mental health counselor like Christopher Duerrmeier 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.: 53217
License State: CA

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No.	Taxonomy Code	Type	Classification / Specialization	License No. (State)
1	101YM0800X	Behavioral Health & Social Service Providers	Counselor Mental Health	MFTI 52690 (CA)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Medicare

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Medicaid

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier	Type / Code	Identifier State	Identifier Issuer
8334	OTHER (01)	CA	EPSDT ID NUMBER

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 1326243064, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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.

Pos 1

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 4

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 6

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

Check

Target digit

Regular digit Doubled digit Check digit

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.

1 → 2 2 → 4 2 → 4 3 → 6 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 3 + 4 + 6 + 4 + 4 + 6 + 0 + 1 + 2 + 24 = 56

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4

This NPI is valid

The calculated check digit is 4, which matches the last digit of 1326243064.