REBECCA SARA JOHN PA-C
NPI 1538039870
Physician Assistant - Medical in New York, NY

NPI Status: Active since November 11, 2025

Contact Information

100 E 77TH ST
NEW YORK, NY
ZIP 10075
Phone: (212) 434-2000

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  • Individual
  • Female
  • Physician Assistant
  • Medical

About REBECCA JOHN

This page provides the complete NPI Profile along with additional information for Rebecca John, a primary care provider established in New York, New York with a medical specialization in Physician Assistant, focusing in medical . The healthcare provider is registered in the NPI registry with number 1538039870 assigned on November 2025. The practitioner's primary taxonomy code is 363AM0700X with license number 034901 (NY). The provider is registered as an individual and her NPI record was last updated one year 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.

NPI
1538039870
Provider Name
REBECCA SARA JOHN PA-C
Gender
Female
Entity Type
Individual
Location Address
100 E 77TH ST NEW YORK, NY 10075
Location Phone
(212) 434-2000
Mailing Address
570 FULTON ST APT 6H BROOKLYN, NY 11217
Is Sole Proprietor?
Yes
Enumeration Date
11-11-2025
Last Update Date
11-11-2025
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A primary care provider (PCP) like Rebecca John sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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

Physician Assistant Medical

Taxonomy Code
363AM0700X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
034901
License State
NY

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.

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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 1538039870, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).

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
5
Unchanged
Pos 3
3
Doubled → 6
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
3
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
0
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 3 → 6 0 → 0 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 6 + 8 + 0 + 3 + 1 + 8 + 8 + 1 + 4 + 24 = 70

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

The next multiple of ten after 70 is 70. The difference is the calculated check digit.

70 - 70 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1538039870.

Other Providers at the Same Location


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

Pediatrics (Neonatal-Perinatal Medicine)
100 E 77TH ST
NEW YORK, NY 10075
Internal Medicine (Hematology)
100 E 77TH ST, DEPT OF MEDICINE, 6TH FLOOR
NEW YORK, NY 10075
Internal Medicine
100 E 77TH ST
NEW YORK, NY 10075
Radiology (Diagnostic Radiology)
100 E 77TH ST
NEW YORK, NY 10075
Emergency Medicine
100 E 77TH ST
NEW YORK, NY 10075
Emergency Medicine
100 E 77TH ST
NEW YORK, NY 10075
Pathology (Anatomic Pathology & Clinical Pathology)
100 E 77TH ST
NEW YORK, NY 10075
Radiology (Diagnostic Radiology)
100 E 77TH ST
NEW YORK, NY 10075
Internal Medicine (Critical Care Medicine)
100 E 77TH ST, LENOX HILL HOSPITAL
NEW YORK, NY 10075
Urology
100 E 77TH ST, 4TH FLOOR, EAST BLDG
NEW YORK, NY 10075
Physician Assistant (Surgical)
100 E 77TH ST, DIVISION OF VASCULAR SURGERY
NEW YORK, NY 10075
Pharmacist
100 E 77TH ST, DEPARTMENT OF PHARMACY
NEW YORK, NY 10075
Physician Assistant (Medical)
100 E 77TH ST, DEPT CARDIOVASCULAR MEDICINE
NEW YORK, NY 10075
Speech-Language Pathologist
100 E 77TH ST
NEW YORK, NY 10075
Surgery
100 E 77TH ST
NEW YORK, NY 10075
Physician Assistant (Surgical)
100 E 77TH ST
NEW YORK, NY 10075
General Acute Care Hospital
100 E 77TH ST
NEW YORK, NY 10075
Physician Assistant
100 E 77TH ST
NEW YORK, NY 10075
Obstetrics & Gynecology (Maternal & Fetal Medicine)
100 E 77TH ST
NEW YORK, NY 10075
Emergency Medicine
100 E 77TH ST
NEW YORK, NY 10075

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1538039870, enumerated as an "individual" on November 11, 2025.

The provider is located at 100 E 77TH ST NEW YORK, NY 10075 and the phone number is (212) 434-2000.

Physician Assistant with taxonomy code 363AM0700X and a focus in Medical.