STURDY HEALTH INC
NPI 1053605634
Internal Medicine - Hematology & Oncology in Attleboro, MA

NPI Status: Active since June 01, 2011

Contact Information

20 ONEIL BLVD
ATTLEBORO, MA
ZIP 02703
Phone: (508) 236-8525
Fax: (508) 342-1927

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  • Organization
  • Internal Medicine
  • Hematology & Oncology
  • CLIA Number: 22D2311188
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 09-17-2026

About STURDY HEALTH INC

This page provides the complete NPI Profile along with additional information for Sturdy Health Inc, an internist established in Attleboro, Massachusetts operating as a Internal Medicine, focusing in hematology & oncology . The healthcare provider is registered in the NPI registry with number 1053605634 assigned on June 2011. The practitioner's primary taxonomy code is 207RH0003X. The provider is registered as an organization and their NPI record was last updated January 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The provider's . The authorized official of this NPI record is Amy Pfeffer (Cfo)

NPI
1053605634
Provider Legal Name
STURDY HEALTH INC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
20 ONEIL BLVD ATTLEBORO, MA 02703
Location Phone
(508) 236-8525
Location Fax
(508) 342-1927
Mailing Address
20 ONEIL BLVD ATTLEBORO, MA 02703
Mailing Phone
(508) 236-8525
Mailing Fax
(508) 342-1927
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
06-01-2011
Last Update Date
01-13-2026
Code Navigator

An internist like Sturdy Health Inc 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 Hematology & Oncology

Taxonomy Code
207RH0003X
Type
Allopathic & Osteopathic Physicians
Taxonomy Description
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

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.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

AMY PFEFFER

Authorized Official Title
CFO
Authorized Official Phone
(508) 236-8150

CLIA Information

The Clinical Laboratory Improvement Amendments (CLIA) of 1988 applies to facilities or sites that test human specimens for health assessment or to diagnose, prevent, or treat disease. The CLIA Program sets standards for clinical laboratory testing and issues certificates. The NPI / CLIA crosswalk information for this NPI number is:

CLIA Number
22D2311188
Facility Type
Physician Office
Certificate Effective Date
September 18, 2024
Certificate Expiration Date
September 17, 2026
Laboratory Director
RAYMOND PAUL-BLANC
Certificate Type
Certificate of Waiver
Certificate Type Description
This CLIA certificate is issued to Sturdy Health Inc to perform only waived tests. CLIA defines waived tests as simple tests with a low risk for an incorrect result. Waived tests include certain tests listed in CLIA regulations, tests cleared by the FDA for home use and tests approved by the FDA for waived status and that meet CLIA waiver criteria.

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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 1053605634, we treat the final digit (4) 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 46. The final step is to find the difference between that total and the next multiple of ten (50 - 46 = 4).

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
0
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
3
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
0
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
6
Unchanged
Pos 9
3
Doubled → 6
Check
4
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 6 → 12 → 3 5 → 10 → 1 3 → 6

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 1 + 0 + 3 + 1 + 2 + 0 + 1 + 0 + 6 + 6 + 24 = 46

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

The next multiple of ten after 46 is 50. The difference is the calculated check digit.

50 - 46 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1053605634.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Physician Assistant
20 ONEIL BLVD
ATTLEBORO, MA 02703
Internal Medicine (Gastroenterology)
20 ONEIL BLVD
ATTLEBORO, MA 02703
Surgery
20 ONEIL BLVD
ATTLEBORO, MA 02703
Internal Medicine (Cardiovascular Disease)
20 ONEIL BLVD
ATTLEBORO, MA 02703
Registered Nurse (Oncology)
20 ONEIL BLVD
ATTLEBORO, MA 02703
Physician Assistant
20 ONEIL BLVD
ATTLEBORO, MA 02703

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1053605634, enumerated as an "organization" on June 01, 2011.

The provider is located at 20 ONEIL BLVD ATTLEBORO, MA 02703 and the phone number is (508) 236-8525.

Internal Medicine with taxonomy code 207RH0003X and a focus in Hematology & Oncology.