SOUTH LYON FAMILY PHYSICIANS, PLLC
NPI 1518004084
Family Medicine in South Lyon, MI

NPI Status: Active since January 31, 2007

Contact Information

22024 PONTIAC TRL
SOUTH LYON, MI
ZIP 48178
Phone: (248) 437-2525
Fax: (248) 437-2526

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NPPES record last updated: August 22, 2020. Verified against the NPPES registry weekly; last sync: July 12, 2026.

  • Organization
  • Family Medicine

About SOUTH LYON FAMILY PHYSICIANS, PLLC

This page provides the complete NPI Profile along with additional information for South Lyon Family Physicians, Pllc, a primary care provider established in South Lyon, Michigan operating as a Family Medicine. The healthcare provider is registered in the NPI registry with number 1518004084 assigned on January 2007. The practitioner's primary taxonomy code is 207Q00000X with license number 5101014989 (MI). The provider is registered as an organization and their NPI record was last updated 6 years ago. South Lyon Family Physicians, Pllc 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. Patrick R Brennan D.o. (Owner)

NPI
1518004084
Provider Name
SOUTH LYON FAMILY PHYSICIANS, PLLC
Entity Type
Organization
Location Address
22024 PONTIAC TRL SOUTH LYON, MI 48178
Location Phone
(248) 437-2525
Location Fax
(248) 437-2526
Mailing Address
22024 PONTIAC TRL SOUTH LYON, MI 48178
Mailing Phone
(248) 437-2525
Mailing Fax
(248) 437-2526
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
01-31-2007
Last Update Date
08-22-2020
Code Navigator

A primary care provider (PCP) like South Lyon Family Physicians, Pllc sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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

Family Medicine

Taxonomy Code
207Q00000X
Type
Allopathic & Osteopathic Physicians
License No.
5101014989
License State
MI
Taxonomy Description
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

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)
1207Q00000XAllopathic & Osteopathic Physicians

Family Medicine

5101005444 (MI)

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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

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. PATRICK R BRENNAN D.O.

Authorized Official Title
OWNER
Authorized Official Phone
(248) 437-2525

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
5633697OTHER (01)MIBLUE CROSS
5101014989OTHER (01)MISTATE LICENSE
5631170OTHER (01)MIBLUE CROSS
5101005444OTHER (01)MISTATE LICENSE

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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 1518004084, 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 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
5
Unchanged
Pos 3
1
Doubled → 2
Pos 4
8
Unchanged
Pos 5
0
Doubled → 0
Pos 6
0
Unchanged
Pos 7
4
Doubled → 8
Pos 8
0
Unchanged
Pos 9
8
Doubled → 16 → 1 + 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 1 → 2 0 → 0 4 → 8 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 2 + 8 + 0 + 0 + 8 + 0 + 1 + 6 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1518004084.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Family Medicine
22024 PONTIAC TRL
SOUTH LYON, MI 48178
Physician Assistant
22024 PONTIAC TRL
SOUTH LYON, MI 48178

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1518004084, enumerated as an "organization" on January 31, 2007.

The provider is located at 22024 PONTIAC TRL SOUTH LYON, MI 48178 and the phone number is (248) 437-2525.

Family Medicine with taxonomy code 207Q00000X.

The provider might be accepting Accepts: Blue Cross Blue Shield, Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.