KARKHANEHCHI DDS INC
NPI 1366370249
Clinic/Center - Dental in San Ramon, CA

NPI Status: Active since May 12, 2026

Contact Information

12677 ALCOSTA BLVD STE 575
SAN RAMON, CA
ZIP 94583
Phone: (925) 829-1100

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  • Organization
  • Clinic/Center
  • Dental

About KARKHANEHCHI DDS INC

This page provides the complete NPI Profile along with additional information for Karkhanehchi Dds Inc, a provider established in San Ramon, California operating as a Clinic/center, focusing in dental . The healthcare provider is registered in the NPI registry with number 1366370249 assigned on May 2026. The practitioner's primary taxonomy code is 261QD0000X. The provider is registered as an organization and their NPI record was last updated May 2026. The authorized official of this NPI record is Dr. Hengameh Karkhanechi Dds (Owner)

NPI
1366370249
Provider Name
KARKHANEHCHI DDS INC
Entity Type
Organization
Location Address
12677 ALCOSTA BLVD STE 575 SAN RAMON, CA 94583
Location Phone
(925) 829-1100
Mailing Address
4645 KINGSWOOD DR DANVILLE, CA 94506
Mailing Phone
(415) 612-0256
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
05-12-2026
Last Update Date
05-12-2026
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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

Clinic/Center Dental

Taxonomy Code
261QD0000X
Type
Ambulatory Health Care Facilities

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

DR. HENGAMEH KARKHANECHI DDS

Authorized Official Title
OWNER
Authorized Official Phone
(415) 612-0256

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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 1366370249, 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.

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

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 2 + 6 + 6 + 7 + 0 + 2 + 8 + 24 = 61

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.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1366370249.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Dentist (Orthodontics and Dentofacial Orthopedics)
12677 ALCOSTA BLVD STE 575
SAN RAMON, CA 94583

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1366370249, enumerated as an "organization" on May 12, 2026.

The provider is located at 12677 ALCOSTA BLVD STE 575 SAN RAMON, CA 94583 and the phone number is (925) 829-1100.

Clinic/Center with taxonomy code 261QD0000X and a focus in Dental.