JOHN A. WALKER
NPI 1407876709
Internal Medicine - Nephrology in New Brunswick, NJ

NPI Status: Active since July 20, 2006

Contact Information

125 PATERSON ST
SUITE 5100B
NEW BRUNSWICK, NJ
ZIP 08901
Phone: (732) 235-6512
Fax: (732) 235-6124

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  • Individual
  • Male
  • Internal Medicine
  • Nephrology

About JOHN WALKER

This page provides the complete NPI Profile along with additional information for John Walker, an internist established in New Brunswick, New Jersey with a medical specialization in Internal Medicine, focusing in nephrology . The healthcare provider is registered in the NPI registry with number 1407876709 assigned on July 2006. The practitioner's primary taxonomy code is 207RN0300X with license number MA39207 (NJ). The provider is registered as an individual and his NPI record was last updated 15 years ago.

NPI
1407876709
Provider Name
JOHN A. WALKER
Gender
Male
Entity Type
Individual
Location Address
125 PATERSON ST SUITE 5100B NEW BRUNSWICK, NJ 08901
Location Phone
(732) 235-6512
Location Fax
(732) 235-6124
Mailing Address
66 WEST GILBERT ST RED BANK, NJ 07701
Mailing Phone
(732) 212-0051
Mailing Fax
(732) 235-6124
Is Sole Proprietor?
No
Enumeration Date
07-20-2006
Last Update Date
09-20-2011
Code Navigator

An internist like John Walker is a physician who has completed an internal medicine residency and is board-certified or board-eligible in an internist specialty. Internists are trained to care for adults of all ages for many different medical conditions. An internist typically monitors chronic physical conditions, identifies acute diseases, provides family planning, provides counseling about wellness and disease prevention, 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

Internal Medicine Nephrology

Taxonomy Code
207RN0300X
Type
Allopathic & Osteopathic Physicians
License No.
MA39207
License State
NJ
Taxonomy Description
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

Insurance Plans Accepted

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

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

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
390002450OTHER (01)NJR R MCR
D20088MEDICARE UPIN (02)NJ 
404231MEDICARE PIN (08)NJ 
0557706MEDICAID (05)NJ 

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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 1407876709, 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
4
Unchanged
Pos 3
0
Doubled → 0
Pos 4
7
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
7
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
7
Unchanged
Pos 9
0
Doubled → 0
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 0 → 0 8 → 16 → 7 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 0 + 7 + 1 + 6 + 7 + 1 + 2 + 7 + 0 + 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 1407876709.

Other Providers at the Same Location


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

Genetic Counselor, MS
125 PATERSON ST, CLINICAL ACADEMIC BUILDING RM 2117
NEW BRUNSWICK, NJ 08901
Specialist
125 PATERSON ST, SUITE 2100, 2ND FLOOR, KIDNEY TRANSPLANT
NEW BRUNSWICK, NJ 08901
Internal Medicine
125 PATERSON ST, ROOM 2330
NEW BRUNSWICK, NJ 08901
Obstetrics & Gynecology (Maternal & Fetal Medicine)
125 PATERSON ST, DEPT. OF OB/GYN CAB 4200
NEW BRUNSWICK, NJ 08901
Obstetrics & Gynecology
125 PATERSON ST, SUITE 4200
NEW BRUNSWICK, NJ 08901
Internal Medicine
125 PATERSON ST, SUITE 2304
NEW BRUNSWICK, NJ 08901
Internal Medicine (Nephrology)
125 PATERSON ST, SUITE 5100B
NEW BRUNSWICK, NJ 08901
Internal Medicine (Nephrology)
125 PATERSON ST, SUITE 5100B
NEW BRUNSWICK, NJ 08901
Internal Medicine (Nephrology)
125 PATERSON ST, SUITE 5100B
NEW BRUNSWICK, NJ 08901
Nurse Practitioner (Family)
125 PATERSON ST
NEW BRUNSWICK, NJ 08901
Psychiatry & Neurology (Psychiatry)
125 PATERSON ST, SUITE 2200
NEW BRUNSWICK, NJ 08901
Obstetrics & Gynecology
125 PATERSON ST, SUITE 4200
NEW BRUNSWICK, NJ 08901
Psychiatry & Neurology (Psychiatry)
125 PATERSON ST, SUITE 2200
NEW BRUNSWICK, NJ 08901
Obstetrics & Gynecology
125 PATERSON ST, SUITE 4200
NEW BRUNSWICK, NJ 08901
Obstetrics & Gynecology
125 PATERSON ST, SUITE 4200
NEW BRUNSWICK, NJ 08901
Psychologist
125 PATERSON ST, CLINICAL ACADEMIC BUILDING - SUITE 2200
NEW BRUNSWICK, NJ 08901
Urology
125 PATERSON ST, CLINICAL ACADEMIC BUILDING - SUITE 4100
NEW BRUNSWICK, NJ 08901
Thoracic Surgery (Cardiothoracic Vascular Surgery)
125 PATERSON ST, CLINICAL ACADEMIC BUILDING - SUITE 4100
NEW BRUNSWICK, NJ 08901
Surgery (Pediatric Surgery)
125 PATERSON ST, CLINICAL ACADEMIC BUILDING - SUITE 4100
NEW BRUNSWICK, NJ 08901
Surgery
125 PATERSON ST, CLINICAL ACADEMIC BUILDING - SUITE 4100
NEW BRUNSWICK, NJ 08901

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1407876709, enumerated as an "individual" on July 20, 2006.

The provider is located at 125 PATERSON ST SUITE 5100B NEW BRUNSWICK, NJ 08901 and the phone number is (732) 235-6512.

Internal Medicine with taxonomy code 207RN0300X and a focus in Nephrology.

The provider might be accepting Accepts: Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.