GRANITE MEDICAL GROUP
NPI 1558756759
Internal Medicine in Quincy, MA

NPI Status: Active since April 03, 2015

Contact Information

500 CONGRESS ST
SUITE 3C
QUINCY, MA
ZIP 02169
Phone: (617) 471-0033
Fax: (617) 770-4354

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  • Organization
  • Internal Medicine
  • CLIA Number: 22D0078229
  • CLIA Cert. Type: Physician Office
  • CLIA Exp. Date: 12-06-2026

About GRANITE MEDICAL GROUP

This page provides the complete NPI Profile along with additional information for Granite Medical Group, an internist established in Quincy, Massachusetts operating as a Internal Medicine. The healthcare provider is registered in the NPI registry with number 1558756759 assigned on April 2015. The practitioner's primary taxonomy code is 207R00000X. The provider is registered as an organization and their NPI record was last updated 4 years ago. Granite Medical Group operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The provider's is doing business as Granite Medical Group. The authorized official of this NPI record is Dr. Steve Strongwater (President)

NPI
1558756759
Provider Legal Name
ATRIUS HEALTH, INC.
Other Organization Name
GRANITE MEDICAL GROUP
Other Name Type
Doing Business As (3)
Entity Type
Organization
Location Address
500 CONGRESS ST SUITE 3C QUINCY, MA 02169
Location Phone
(617) 471-0033
Location Fax
(617) 770-4354
Mailing Address
275 GROVE ST SUITE 3-300 AUBURNDALE, MA 02466
Mailing Phone
(617) 559-8374
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
04-03-2015
Last Update Date
06-20-2022
Code Navigator

An internist like Granite Medical Group 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

Taxonomy Code
207R00000X
Type
Allopathic & Osteopathic Physicians
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.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1207N00000XAllopathic & Osteopathic Physicians

Dermatology

(MA)
2207RC0000XAllopathic & Osteopathic Physicians

Internal Medicine
Cardiovascular Disease

(MA)
3207RE0101XAllopathic & Osteopathic Physicians

Internal Medicine
Endocrinology, Diabetes & Metabolism

(MA)
4207RG0100XAllopathic & Osteopathic Physicians

Internal Medicine
Gastroenterology

(MA)
5207RG0300XAllopathic & Osteopathic Physicians

Internal Medicine
Geriatric Medicine

(MA)
6207RI0011XAllopathic & Osteopathic Physicians

Internal Medicine
Interventional Cardiology

(MA)
7207RP1001XAllopathic & Osteopathic Physicians

Internal Medicine
Pulmonary Disease

(MA)
8207RR0500XAllopathic & Osteopathic Physicians

Internal Medicine
Rheumatology

(MA)
92085R0202XAllopathic & Osteopathic Physicians

Radiology
Diagnostic Radiology

(MA)

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas 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

DR. STEVE STRONGWATER

Authorized Official Title
PRESIDENT
Authorized Official Phone
(617) 559-8042

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
22D0078229
Facility Type
Physician Office
Certificate Effective Date
December 07, 2024
Certificate Expiration Date
December 06, 2026
Laboratory Director
DR. ANDREY PRILUTSKIY
Certificate Type
Certificate of Accreditation
Certificate Type Description
This is a CLIA certificate is issued to Granite Medical Group on the basis of the laboratory's accreditation by an accreditation organization approved by CMS. This type of certificate is issued to a laboratories tha perform nonwaived (moderate and/or high complexity) testing.

Reviews for GRANITE MEDICAL GROUP

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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 1558756759, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
5
Doubled → 10 → 1 + 0
Pos 4
8
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
5
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
7
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
9
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 7 → 14 → 5 6 → 12 → 3 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 0 + 8 + 1 + 4 + 5 + 1 + 2 + 7 + 1 + 0 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1558756759.

Other Providers at the Same Location


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

Nurse Practitioner (Adult Health)
500 CONGRESS ST
QUINCY, MA 02169
Nurse Practitioner (Adult Health)
500 CONGRESS ST, SUITE 3C
QUINCY, MA 02169
Nurse Practitioner (Adult Health)
500 CONGRESS ST
QUINCY, MA 02169
Nurse Practitioner (Adult Health)
500 CONGRESS ST
QUINCY, MA 02169
Internal Medicine (Cardiovascular Disease)
500 CONGRESS ST
QUINCY, MA 02169
Internal Medicine
500 CONGRESS ST, SUITE 3C
QUINCY, MA 02169
Internal Medicine
500 CONGRESS ST, 3RD FLOOR
QUINCY, MA 02169
Family Medicine (Adult Medicine)
500 CONGRESS ST
QUINCY, MA 02169
Internal Medicine (Geriatric Medicine)
500 CONGRESS ST, 3RD FLOOR
QUINCY, MA 02169
Internal Medicine (Pulmonary Disease)
500 CONGRESS ST, 3RD FLOOR
QUINCY, MA 02169
Nurse Practitioner (Adult Health)
500 CONGRESS ST
QUINCY, MA 02169
Internal Medicine (Rheumatology)
500 CONGRESS ST, 3RD FLOOR
QUINCY, MA 02169
Internal Medicine (Cardiovascular Disease)
500 CONGRESS ST, 3RD FLOOR
QUINCY, MA 02169
Otolaryngology
500 CONGRESS ST, SUITE 2B
QUINCY, MA 02169
Otolaryngology
500 CONGRESS ST, SUITE 2B
QUINCY, MA 02169
Internal Medicine (Cardiovascular Disease)
500 CONGRESS ST, SUITE 3A
QUINCY, MA 02169
Internal Medicine (Gastroenterology)
500 CONGRESS ST, 3RD FLOOR
QUINCY, MA 02169
Internal Medicine (Endocrinology, Diabetes & Metabolism)
500 CONGRESS ST, 3RD FLOOR
QUINCY, MA 02169
Podiatrist
500 CONGRESS ST
QUINCY, MA 02169
Internal Medicine (Gastroenterology)
500 CONGRESS ST, 3RD FLOOR
QUINCY, MA 02169

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1558756759, enumerated as an "organization" on April 03, 2015.

The provider is located at 500 CONGRESS ST SUITE 3C QUINCY, MA 02169 and the phone number is (617) 471-0033.

Internal Medicine with taxonomy code 207R00000X.