MS. DIANA C. DARCY MS CGC
NPI 1952614232
Genetic Counselor, MS in San Jose, CA

NPI Status: Active since July 15, 2010

Contact Information

751 S BASCOM AVE STE 310
SAN JOSE, CA
ZIP 95128
Phone: (408) 885-7924
Fax: (408) 885-3079

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NPPES record last updated: October 19, 2011. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Individual
  • Female
  • Genetic Counselor, MS

About DIANA DARCY

This page provides the complete NPI Profile along with additional information for Diana Darcy, a provider established in San Jose, California with a medical specialization in Genetic Counselor, Ms. The healthcare provider is registered in the NPI registry with number 1952614232 assigned on July 2010. The practitioner's primary taxonomy code is 170300000X. The provider is registered as an individual and her NPI record was last updated 15 years ago.

NPI
1952614232
Provider Name
MS. DIANA C. DARCY MS CGC
Gender
Female
Entity Type
Individual
Location Address
751 S BASCOM AVE STE 310 SAN JOSE, CA 95128
Location Phone
(408) 885-7924
Location Fax
(408) 885-3079
Mailing Address
751 S BASCOM AVE STE 310 SAN JOSE, CA 95128
Mailing Phone
(408) 885-7924
Mailing Fax
(408) 885-3079
Is Sole Proprietor?
No
Enumeration Date
07-15-2010
Last Update Date
10-19-2011
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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

Genetic Counselor, MS

Taxonomy Code
170300000X
Type
Other Service Providers
Taxonomy Description
A masters trained health care provider who collects and interprets genetic family histories; assesses the risk of disease occurrence or recurrence; identifies interventions to manage or ameliorate disease risk; educates about inheritance, testing, management, prevention, ethical issues, resources, and research; and counsels to promote informed choices and adaptation. Certification was established in 1993 by the American Board of Genetic Counseling and prior to that by the American Board of Medical Genetics. Requirements for experience, licensure, and job responsibilities vary among the states.

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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 1952614232, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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
1
Doubled → 2
Pos 2
9
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
2
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
1
Unchanged
Pos 7
4
Doubled → 8
Pos 8
2
Unchanged
Pos 9
3
Doubled → 6
Check
2
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 5 → 10 → 1 6 → 12 → 3 4 → 8 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 0 + 2 + 1 + 2 + 1 + 8 + 2 + 6 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1952614232.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1952614232, enumerated as an "individual" on July 15, 2010.

The provider is located at 751 S BASCOM AVE STE 310 SAN JOSE, CA 95128 and the phone number is (408) 885-7924.

Genetic Counselor, MS with taxonomy code 170300000X.