JOHN B SERADJ MD INC.
NPI 1952656456
Obstetrics & Gynecology in Encinitas, CA

NPI Status: Active since July 20, 2012

Contact Information

477 N EL CAMINO REAL
SUITE A 308
ENCINITAS, CA
ZIP 92024
Phone: (760) 942-6120
Fax: (760) 942-8187

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NPPES record last updated: July 20, 2012. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Organization
  • Obstetrics & Gynecology

About JOHN B SERADJ MD INC.

This page provides the complete NPI Profile along with additional information for John B Seradj Md Inc., a women's health care provider established in Encinitas, California operating as a Obstetrics & Gynecology. The healthcare provider is registered in the NPI registry with number 1952656456 assigned on July 2012. The practitioner's primary taxonomy code is 207V00000X. The provider is registered as an organization and their NPI record was last updated 14 years 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. The authorized official of this NPI record is John B Seradj Md (Owner)

NPI
1952656456
Provider Name
JOHN B SERADJ MD INC.
Entity Type
Organization
Location Address
477 N EL CAMINO REAL SUITE A 308 ENCINITAS, CA 92024
Location Phone
(760) 942-6120
Location Fax
(760) 942-8187
Mailing Address
477 N EL CAMINO REAL SUITE A 308 ENCINITAS, CA 92024
Mailing Phone
(760) 942-6120
Mailing Fax
(760) 942-8187
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
07-20-2012
Last Update Date
07-20-2012
Code Navigator

Women's health care providers like John B Seradj Md Inc. treat and diagnose diseases and conditions that affect a woman's physical and emotional health. Women's health professionals come from a variety of different specialties, including obstetrician/gynecologists, general surgeons, perinatologists, physician assistants, nurse practitioners or nurse midwives. A women's health provider might help you with family planning, breast care, pregnancy and child birth, osteoporosis, menopause, heart disease, etc.

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

Obstetrics & Gynecology

Taxonomy Code
207V00000X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

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.

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

JOHN B SERADJ MD

Authorized Official Title
OWNER
Authorized Official Phone
(760) 942-6120

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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 1952656456, we treat the final digit (6) 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 6).

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

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 + 5 + 1 + 2 + 4 + 1 + 0 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1952656456.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Family Medicine
477 N EL CAMINO REAL, SUITE A208
ENCINITAS, CA 92024
Anesthesiology
477 N EL CAMINO REAL
ENCINITAS, CA 92024
Family Medicine
477 N EL CAMINO REAL, A306
ENCINITAS, CA 92024
Family Medicine
477 N EL CAMINO REAL, A306
ENCINITAS, CA 92024
Family Medicine
477 N EL CAMINO REAL, A306
ENCINITAS, CA 92024
Family Medicine
477 N EL CAMINO REAL, A306
ENCINITAS, CA 92024
Family Medicine
477 N EL CAMINO REAL, A306
ENCINITAS, CA 92024
Anesthesiology
477 N EL CAMINO REAL, # C100
ENCINITAS, CA 92024
Pediatrics
477 N EL CAMINO REAL, SUITE B105
ENCINITAS, CA 92024
Family Medicine
477 N EL CAMINO REAL
ENCINITAS, CA 92024
Specialist
477 N EL CAMINO REAL, SUITE C303
ENCINITAS, CA 92024
Physician Assistant (Medical)
477 N EL CAMINO REAL, SUITE B301
ENCINITAS, CA 92024
Anesthesiology
477 N EL CAMINO REAL, SUITE C-100
ENCINITAS, CA 92024
Obstetrics & Gynecology (Gynecology)
477 N EL CAMINO REAL, SUITE C 302
ENCINITAS, CA 92024
Dentist (Periodontics)
477 N EL CAMINO REAL, C 306
ENCINITAS, CA 92024
Dermatology
477 N EL CAMINO REAL, C-312
ENCINITAS, CA 92024
Family Medicine
477 N EL CAMINO REAL, STE A200
ENCINITAS, CA 92024
Dermatology
477 N EL CAMINO REAL, C-312
ENCINITAS, CA 92024
Nurse Practitioner
477 N EL CAMINO REAL, SUITE C206
ENCINITAS, CA 92024
Obstetrics & Gynecology (Gynecology)
477 N EL CAMINO REAL, SUITE A300
ENCINITAS, CA 92024

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1952656456, enumerated as an "organization" on July 20, 2012.

The provider is located at 477 N EL CAMINO REAL SUITE A 308 ENCINITAS, CA 92024 and the phone number is (760) 942-6120.

Obstetrics & Gynecology with taxonomy code 207V00000X.