JENNIFER ANNE TREBILCOCK MD
NPI 1174227847
Internal Medicine in Worcester, MA
NPI Status: Active since March 28, 2023
Contact Information
119 BELMONT ST
WORCESTER, MA
ZIP 01605
Phone: (508) 334-8515
Fax: (508) 334-6490
Some details in this NPI profile have been updated in the NPI registry within the last 30 days.
- Individual
- Female
- Internal Medicine
About JENNIFER TREBILCOCK
This page provides the complete NPI Profile along with additional information for Jennifer Trebilcock, an internist established in Worcester, Massachusetts with a medical specialization in Internal Medicine. The healthcare provider is registered in the NPI registry with number 1174227847 assigned on March 2023. The practitioner's primary taxonomy code is 207R00000X with license number 1028096 (MA). The provider is registered as an individual and her NPI record was last updated June 2026.
- NPI
- 1174227847
- Provider Name
- JENNIFER ANNE TREBILCOCK MD
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 119 BELMONT ST WORCESTER, MA 01605
- Location Phone
- (508) 334-8515
- Location Fax
- (508) 334-6490
- Mailing Address
- PO BOX 415348 BOSTON, MA 02241
- Mailing Phone
- (800) 225-8885
- Mailing Fax
- (508) 334-6490
- Is Sole Proprietor?
- No
- Enumeration Date
- 03-28-2023
- Last Update Date
- 06-18-2026
- Code Navigator
An internist like Jennifer Trebilcock 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
Secondary Locations
- 55 Lake Ave N
Worcester, MA 01655
(508) 334-8515
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
- Taxonomy Code
- 207R00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- 1028096
- License State
- MA
- Taxonomy Description
- A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
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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 1174227847, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 63 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
WORCESTER, MA 01605
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1174227847, enumerated as an "individual" on March 28, 2023.
The provider is located at 119 BELMONT ST WORCESTER, MA 01605 and the phone number is (508) 334-8515.
Internal Medicine with taxonomy code 207R00000X.
