CARMICHAEL TRAUMA MEDICAL GROUP, INC
NPI 1578584603
Orthopaedic Surgery - Orthopaedic Trauma in Carmichael, CA

NPI Status: Active since July 22, 2006

Contact Information

6620 COYLE AVE
SUITE 212
CARMICHAEL, CA
ZIP 95608
Phone: (916) 536-9455
Fax: (916) 536-9424

NPI Profile Information
Primary Taxonomy
Secondary Taxonomies
Group Taxonomy
Secondary Locations
Authorized Official
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Organization
Orthopaedic Surgery
Orthopaedic Trauma

About CARMICHAEL TRAUMA MEDICAL GROUP, INC

This page provides the complete NPI Profile along with additional information for Carmichael Trauma Medical Group, Inc, a provider established in Carmichael, California operating as a Orthopaedic Surgery, focusing in orthopaedic trauma . The healthcare provider is registered in the NPI registry with number 1578584603 assigned on July 2006. The practitioner's primary taxonomy code is 207XX0801X. The provider is registered as an organization and their NPI record was last updated February 2026. Carmichael Trauma Medical Group, Inc operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization. The authorized official of this NPI record is Dr. Paul Robert Gregory M.d. (President)

NPI: 1578584603
Provider Name: CARMICHAEL TRAUMA MEDICAL GROUP, INC
Entity Type: Organization
Location Address: 6620 COYLE AVE SUITE 212 CARMICHAEL, CA 95608
Location Phone: (916) 536-9455
Location Fax: (916) 536-9424
Mailing Address: 1451 SECRET RAVINE PKWY STE 150 ROSEVILLE, CA 95661
Mailing Phone: (916) 536-9455
Mailing Fax: (916) 536-9424
Is Sole Proprietor?: No
Is Organization Subpart?: No
Enumeration Date: 07-22-2006
Last Update Date: 02-10-2026
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Location Map

Secondary Locations

1451 Secret Ravine Pkwy Ste 150
Roseville, CA 95661
(916) 536-9455

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 Orthopaedic Trauma
Taxonomy Code: 207XX0801X
Type: Allopathic & Osteopathic Physicians
Taxonomy Description: Recognized by several state medical boards as a fellowship subspecialty program of orthopaedic surgery, orthopaedic trauma surgeons deal with the evaluation and management of acute orthopaedic injuries, evaluation and treatment of post-traumatic deformities and nonunions, acute and delayed reconstruction of pelvic and acetabular fractures, as well as osteotomy in the adult hip for treatment of hip arthritis.

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)
1	207X00000X	Allopathic & Osteopathic Physicians	Orthopaedic Surgery
2	208600000X	Allopathic & Osteopathic Physicians	Surgery

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. PAUL ROBERT GREGORY M.D.
Authorized Official Title: PRESIDENT
Authorized Official Phone: (916) 536-9455

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 1578584603, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 10 → 1 + 0

Pos 6

Unchanged

Pos 7

Doubled → 8

Pos 8

Unchanged

Pos 9

Doubled → 0

Check

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 5 → 10 → 1 4 → 8 0 → 0