FADZAI SEMWAYO NP
NPI 1154294346
Nurse Practitioner - Obstetrics & Gynecology in Roxbury, MA

NPI Status: Active since September 25, 2025

Contact Information

1290 TREMONT ST
ROXBURY, MA
ZIP 02120
Phone: (617) 427-1000

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  • Individual
  • Female
  • Nurse Practitioner
  • Obstetrics & Gynecology

About FADZAI SEMWAYO

This page provides the complete NPI Profile along with additional information for Fadzai Semwayo, a provider established in Roxbury, Massachusetts with a medical specialization in Nurse Practitioner, focusing in obstetrics & gynecology . The healthcare provider is registered in the NPI registry with number 1154294346 assigned on September 2025. The practitioner's primary taxonomy code is 363LX0001X with license number RN2373099 (MA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1154294346
Provider Name
FADZAI SEMWAYO NP
Gender
Female
Entity Type
Individual
Location Address
1290 TREMONT ST ROXBURY, MA 02120
Location Phone
(617) 427-1000
Mailing Address
1290 TREMONT ST ROXBURY, MA 02120
Mailing Phone
(617) 427-1000
Is Sole Proprietor?
Yes
Enumeration Date
09-25-2025
Last Update Date
10-24-2025
Code Navigator

A nurse practitioner (NP) like Fadzai Semwayo is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, 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

Nurse Practitioner Obstetrics & Gynecology

Taxonomy Code
363LX0001X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
RN2373099
License State
MA

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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 1154294346, 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 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
1
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
4
Unchanged
Pos 5
2
Doubled → 4
Pos 6
9
Unchanged
Pos 7
4
Doubled → 8
Pos 8
3
Unchanged
Pos 9
4
Doubled → 8
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 2 → 4 4 → 8 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 1 + 1 + 0 + 4 + 4 + 9 + 8 + 3 + 8 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1154294346.

Other Providers at the Same Location


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

Dietitian, Registered
1290 TREMONT ST
ROXBURY, MA 02120
Dental Hygienist
1290 TREMONT ST
ROXBURY, MA 02120
Social Worker (Clinical)
1290 TREMONT ST, BEHAVIORAL HEALTH
ROXBURY, MA 02120
Nurse Practitioner (Gerontology)
1290 TREMONT ST
ROXBURY, MA 02120
Music Therapist
1290 TREMONT ST
ROXBURY, MA 02120
Dietitian, Registered
1290 TREMONT ST
BOSTON, MA 02120
Nurse Practitioner (Pediatrics)
1290 TREMONT ST
ROXBURY CROSSING, MA 02120
Clinic/Center
1290 TREMONT ST
ROXBURY CROSSING, MA 02120
Clinic/Center (Mental Health (Including Community Mental Health Center))
1290 TREMONT ST
ROXBURY CROSSING, MA 02120
Dentist
1290 TREMONT ST, DENTAL DEPARTMENT
ROXBURY, MA 02120
Counselor (Mental Health)
1290 TREMONT ST, 2ND FLOOR, ROOM 234
ROXBURY, MA 02120
Social Worker (Clinical)
1290 TREMONT ST
ROXBURY, MA 02120
Counselor (Mental Health)
1290 TREMONT ST
ROXBURY, MA 02120
Social Worker
1290 TREMONT ST
ROXBURY, MA 02120
Nurse Practitioner (Family)
1290 TREMONT ST
ROXBURY, MA 02120
Nurse Practitioner (Primary Care)
1290 TREMONT ST
ROXBURY, MA 02120
Pediatrics
1290 TREMONT ST
ROXBURY, MA 02120
Counselor (Mental Health)
1290 TREMONT ST
ROXBURY, MA 02120
Counselor (Mental Health)
1290 TREMONT ST, .
BOSTON, MA 02120
Counselor (Mental Health)
1290 TREMONT ST
ROXBURY, MA 02120

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1154294346, enumerated as an "individual" on September 25, 2025.

The provider is located at 1290 TREMONT ST ROXBURY, MA 02120 and the phone number is (617) 427-1000.

Nurse Practitioner with taxonomy code 363LX0001X and a focus in Obstetrics & Gynecology.