BRYAN GROMMERSCH
NPI 1013493782
Orthopaedic Surgery in Boston, MA

NPI Status: Active since July 16, 2018

Contact Information

330 BROOKLINE AVE
BOSTON, MA
ZIP 02215
Phone: (617) 667-7000

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  • Individual
  • Male
  • Orthopaedic Surgery

About BRYAN GROMMERSCH

This page provides the complete NPI Profile along with additional information for Bryan Grommersch, a provider established in Boston, Massachusetts with a medical specialization in Orthopaedic Surgery. The healthcare provider is registered in the NPI registry with number 1013493782 assigned on July 2018. The practitioner's primary taxonomy code is 207X00000X with license number 3020030 (MA). The provider is registered as an individual and his NPI record was last updated June 2026.

NPI
1013493782
Provider Name
BRYAN GROMMERSCH
Gender
Male
Entity Type
Individual
Location Address
330 BROOKLINE AVE BOSTON, MA 02215
Location Phone
(617) 667-7000
Mailing Address
330 BROOKLINE AVE BOSTON, MA 02215
Is Sole Proprietor?
No
Enumeration Date
07-16-2018
Last Update Date
06-22-2026
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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

Orthopaedic Surgery

Taxonomy Code
207X00000X
Type
Allopathic & Osteopathic Physicians
License No.
3020030
License State
MA
Taxonomy Description
An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

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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 1013493782, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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
1
Doubled → 2
Pos 4
3
Unchanged
Pos 5
4
Doubled → 8
Pos 6
9
Unchanged
Pos 7
3
Doubled → 6
Pos 8
7
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
2
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 1 → 2 4 → 8 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 + 0 + 2 + 3 + 8 + 9 + 6 + 7 + 1 + 6 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1013493782.

Other Providers at the Same Location


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

Obstetrics & Gynecology (Maternal & Fetal Medicine)
330 BROOKLINE AVE, KS 306
BOSTON, MA 02215
Internal Medicine (Cardiovascular Disease)
330 BROOKLINE AVE
BOSTON, MA 02215
Anesthesiology
330 BROOKLINE AVE, DEPT OF ANESTHESIA ST-308
BOSTON, MA 02215
Internal Medicine (Critical Care Medicine)
330 BROOKLINE AVE, GZ 405
BOSTON, MA 02215
Radiology (Radiation Oncology)
330 BROOKLINE AVE, FINARD BUILDING B25
BOSTON, MA 02215
Psychiatry & Neurology (Neurology)
330 BROOKLINE AVE
BOSTON, MA 02215
Pathology (Neuropathology)
330 BROOKLINE AVE, DEPT. OF NEUROLOGY
BOSTON, MA 02215
Internal Medicine (Cardiovascular Disease)
330 BROOKLINE AVE
BOSTON, MA 02215
Hospitalist
330 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine
330 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine (Pulmonary Disease)
330 BROOKLINE AVE, GZ-402
BOSTON, MA 02215
Internal Medicine (Pulmonary Disease)
330 BROOKLINE AVE, KSB23, BIDMC PULMONARY
BOSTON, MA 02215
Pathology (Anatomic Pathology)
330 BROOKLINE AVE, DEPT OF MEDICINE
BOSTON, MA 02215
Pediatrics (Neonatal-Perinatal Medicine)
330 BROOKLINE AVE, ROSE BUILDING ROOM 318
BOSTON, MA 02215
Internal Medicine (Gastroenterology)
330 BROOKLINE AVE
BOSTON, MA 02215
Internal Medicine
330 BROOKLINE AVE, SHAPIRO 6
BOSTON, MA 02215
Internal Medicine (Pulmonary Disease)
330 BROOKLINE AVE, BETH ISRAEL DEACONESS MEDICAL CENTER
BOSTON, MA 02215
Internal Medicine (Infectious Disease)
330 BROOKLINE AVE, RESEARCH EAST 113 BETH ISRAEL DEACONESS HOSPITAL
BOSTON, MA 02215
Orthopaedic Surgery
330 BROOKLINE AVE, BIDMC - STONEMAN 10
BOSTON, MA 02215
Optometrist
330 BROOKLINE AVE
BOSTON, MA 02215

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1013493782, enumerated as an "individual" on July 16, 2018.

The provider is located at 330 BROOKLINE AVE BOSTON, MA 02215 and the phone number is (617) 667-7000.

Orthopaedic Surgery with taxonomy code 207X00000X.