FERGUSON FAMILY PRACTICE & OCCUPATIONAL HEALTH, PLLC
NPI 1588040588
Nurse Practitioner - Family in San Marcos, TX
About Ferguson Family Practice & Occupational Health, Pllc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
FERGUSON FAMILY PRACTICE & OCCUPATIONAL HEALTH, PLLC (NPI 1588040588) is a healthcare organization registered as a family in San Marcos, Texas and active in the NPI registry since August 2015. The organization holds a CLIA Waiver certificate valid through November 16, 2027 and lists Mary Leigh Caldwell, Office Administrator, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Ferguson Family Practice & Occupational Health, Pllc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Ferguson Family Practice & Occupational Health, PLLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Waiver 45D2105052
Ferguson Family Practice & Occupational Health,pll · San Marcos, TXFrequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Ferguson Family Practice & Occupational Health, PLLC's NPI number?
The NPI number for Ferguson Family Practice & Occupational Health, PLLC is 1588040588. It was assigned to this organization in the NPPES registry on August 3, 2015.
Where is Ferguson Family Practice & Occupational Health, PLLC located?
Ferguson Family Practice & Occupational Health, PLLC is located at 1228 N Highway 123, San Marcos, TX 78666. The listed phone number is (512) 392-5556.
What is Ferguson Family Practice & Occupational Health, PLLC's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Ferguson Family Practice & Occupational Health, PLLC enrolled in Medicare?
Yes. Ferguson Family Practice & Occupational Health, PLLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Ferguson Family Practice & Occupational Health, PLLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nurse Practitioner) reassigns their Medicare billing to Ferguson Family Practice & Occupational Health, PLLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Does Ferguson Family Practice & Occupational Health, PLLC hold a CLIA laboratory certificate?
Yes. A Certificate of Waiver (number 45D2105052) is associated with this NPI, valid through November 16, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
What insurance does Ferguson Family Practice & Occupational Health, PLLC accept?
Health plans from Moda Health Plan, Inc. list Ferguson Family Practice & Occupational Health, PLLC as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Ferguson Family Practice & Occupational Health, PLLC was last updated on November 5, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Ferguson Family Practice & Occupational Health, Pllc · NPI 1588040588
Family organization in San Marcos, Texas. Organization record, active in the CMS NPPES registry since August 3, 2015.
## Identity
- **NPI:** 1588040588 (Entity type: Organization)
- **Enumerated:** August 3, 2015
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **Organization subpart:** No
- **Authorized official:** Mary Caldwell, OFFICE ADMINISTRATOR
## Practice location
- **Address:** 1228 N HIGHWAY 123, San Marcos, TX 78666-7730
- **Phone:** (512) 392-5556 · **Fax:** (512) 392-8828
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Nurse Practitioner) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 5, 2015
- **CLIA laboratory certificates:** 1 on file
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Source: [NPI Profile](https://npiprofile.com/npi/1588040588) · Data from the CMS NPPES public registry.