SARA G. RITCHIE PA-C
NPI 1871173781
Physician Assistant in Worcester, MA

NPI Status: Active since April 13, 2021

Contact Information

119 BELMONT ST
WORCESTER, MA
ZIP 01605
Phone: (508) 334-6206
Fax: (508) 334-6083

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  • Individual
  • Female
  • Physician Assistant

About SARA RITCHIE

This page provides the complete NPI Profile along with additional information for Sara Ritchie, a primary care provider established in Worcester, Massachusetts with a medical specialization in Physician Assistant. The healthcare provider is registered in the NPI registry with number 1871173781 assigned on April 2021. The practitioner's primary taxonomy code is 363A00000X with license number PA8615 (MA). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1871173781
Provider Name
SARA G. RITCHIE PA-C
Gender
Female
Entity Type
Individual
Location Address
119 BELMONT ST WORCESTER, MA 01605
Location Phone
(508) 334-6206
Location Fax
(508) 334-6083
Mailing Address
PO BOX 415348 BOSTON, MA 02241
Mailing Phone
(800) 225-8885
Mailing Fax
(508) 334-6083
Is Sole Proprietor?
No
Enumeration Date
04-13-2021
Last Update Date
12-09-2025
Code Navigator

A primary care provider (PCP) like Sara Ritchie 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

Secondary Locations

  • 115 Lincoln St
    Framingham, MA 01702
    (508) 383-8544
  • 123 Summer St
    Worcester, MA 01608
    (508) 363-7449

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

Taxonomy Code
363A00000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
PA8615
License State
MA
Taxonomy Description
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

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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 1871173781, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
8
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
1
Unchanged
Pos 5
1
Doubled → 2
Pos 6
7
Unchanged
Pos 7
3
Doubled → 6
Pos 8
7
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
1
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 7 → 14 → 5 1 → 2 3 → 6 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 4 + 1 + 2 + 7 + 6 + 7 + 1 + 6 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1871173781.

Other Providers at the Same Location


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

Specialist
119 BELMONT ST
WORCESTER, MA 01605
Internal Medicine (Cardiovascular Disease)
119 BELMONT ST
WORCESTER, MA 01605
Obstetrics & Gynecology (Reproductive Endocrinology)
119 BELMONT ST, DEPARTMENT OF OBSTETRICS & GYNECOLOGY
WORCESTER, MA 01605
Obstetrics & Gynecology (Gynecologic Oncology)
119 BELMONT ST, DEPARTMENT OF GYNECOLOGIC ONCOLOGY
WORCESTER, MA 01605
Obstetrics & Gynecology (Obstetrics)
119 BELMONT ST, DEPARTMENT OF OBSTETRICS & GYNECOLOGY
WORCESTER, MA 01605
Internal Medicine
119 BELMONT ST, DEPARTMENT OF HOSPITAL MEDICINE
WORCESTER, MA 01605
Internal Medicine (Cardiovascular Disease)
119 BELMONT ST, DEPARTMENT OF CARDIOVASCULAR MEDICINE
WORCESTER, MA 01605
Anesthesiology
119 BELMONT ST
WORCESTER, MA 01605
Anesthesiology
119 BELMONT ST
WORCESTER, MA 01605
Anesthesiology
119 BELMONT ST
WORCESTER, MA 01605
Radiology (Radiation Oncology)
119 BELMONT ST, DEPARTMENT OF RADIATION ONCOLOGY
WORCESTER, MA 01605
Surgery
119 BELMONT ST, DEPARTMENT OF GENERAL SURGERY
WORCESTER, MA 01605
Family Medicine
119 BELMONT ST, DEPARTMENT OF FAMILY HOSPITAL MEDICINE
WORCESTER, MA 01605
Psychiatry & Neurology (Neurology)
119 BELMONT ST, DEPARTMENT OF NEUROLOGY
WORCESTER, MA 01605
Internal Medicine
119 BELMONT ST, DEPARTMENT OF PALLIATIVE CARE
WORCESTER, MA 01605
Internal Medicine (Cardiovascular Disease)
119 BELMONT ST, DEPARTMENT OF CARDIOLOGY
WORCESTER, MA 01605
Internal Medicine (Hematology & Oncology)
119 BELMONT ST, DEPARTMENT OF HEMATOLOGY/ONCOLOGY
WORCESTER, MA 01605
Orthopaedic Surgery
119 BELMONT ST, DEPARTMENT OF ORTHOPEDIC SURGERY
WORCESTER, MA 01605
Psychiatry & Neurology (Neurology)
119 BELMONT ST, DEPARTMENT OF NEUROLOGY
WORCESTER, MA 01605
Pathology (Anatomic Pathology)
119 BELMONT ST, DEPARTMENT OF ANATOMIC PATHOLOGY
WORCESTER, MA 01605

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1871173781, enumerated as an "individual" on April 13, 2021.

The provider is located at 119 BELMONT ST WORCESTER, MA 01605 and the phone number is (508) 334-6206.

Physician Assistant with taxonomy code 363A00000X.