K PAUL GERSTENBERG, D O, P A
NPI 1104824507
Family Medicine in Port Neches, TX

Active since July 08, 2005CLIA 45D1010477 · Microscopy
2645 NALL ST, PORT NECHES, TX 77651(409) 210-3336(409) 527-3969 Get Directions Write a Review

NPPES record last updated: March 4, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 4, 2025, Sep 7, 2018 (2 updates tracked since 2018).

About K Paul Gerstenberg, D O, P A NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

K PAUL GERSTENBERG, D O, P A (NPI 1104824507) is a healthcare organization registered as a family medicine in Port Neches, Texas and active in the NPI registry since July 2005. The organization holds a CLIA Microscopy certificate valid through March 13, 2027, maintains a secondary practice location in Port Neches, and lists Kandice Varela, Office Manager, as its authorized official.

NPPES Registry Identity

NPI1104824507
Entity TypeOrganization
Primary Taxonomy207Q00000X
Legal Business NameK PAUL GERSTENBERG, D O, P A
Location Address2645 NALL STPort Neches, TX 77651
Mailing Address2645 Nall StPort Neches, TX 77651-4707 · (409) 210-3336 · Fax (409) 527-3969
Fax(409) 527-3969
Organization SubpartNo
Authorized OfficialKandice VarelaOffice Manager · (409) 210-3336
Enumeration DateJuly 8, 2005
Last NPPES UpdateMarch 4, 20252 updates tracked since enumeration
NPPES CertifiedMarch 4, 2025
✔ NPI 1104824507 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in TX · J6456
Definition
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.
2645 NALL ST, Port Neches, TX 77651

Other Names 1

Doing Business AsK Paul Gerstenberg, D O, P A

Secondary Practice Location 1

Location 12927 Nall StPort Neches, TX 77651-5603 · Phone (409) 210-3336 · Fax (409) 527-3969

Other Identifiers 1

Medicaid167215601TX

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

K Paul Gerstenberg, D O, P A is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date 2

Next revalidation due by December 31, 2026

This provider holds 2 Medicare enrollments with upcoming revalidation dates. Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateTexasEnrollment IDO20190108002705DME · Physician - Family PracticeDue dateDecember 31, 2026
StateTexasEnrollment IDO20040609000542Non-DME Part B · Clinic/Group PracticeDue dateJanuary 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

3

Medicare enrollment records show 3 clinicians reassign Medicare billing to K Paul Gerstenberg, D O, P A, which bills Medicare for the services they deliver. Of these, 3 practice at this address. They are listed nearest first.

Clinicians, nearest first (3)

Family Practice
NPI 1538426184
2645 NALL ST
Port Neches, TX 77651
(409) 210-3336
✔ PECOS✔ Accepts MedicareSame address
Family Practice
NPI 1265430649
2645 NALL ST
Port Neches, TX 77651
(409) 210-3336
✔ PECOS✔ Accepts MedicareSame address
Nurse Practitioner
NPI 1962536086
2645 NALL ST
Port Neches, TX 77651
(409) 210-3336
✔ PECOS✔ Accepts MedicareSame address

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 for Provider-Performed Microscopy Procedures (PPMP) 45D1010477

K Paul Gerstenberg, Do PA · Port Neches, TX
Active · expires Mar 13, 2027
CLIA Number45D1010477
Laboratory TypePhysician Office
Certificate Effective DateMarch 14, 2025
Certificate Expiration DateMarch 13, 2027
Laboratory DirectorK Paul P. Gerstenberg
Laboratory Phone(409) 210-3336
Laboratory LocationK Paul Gerstenberg, Do PA2927 Nall Street, Port Neches, TX 77651
CLIA data matches this NPI record on: Address Phone
This certificate is issued to a laboratory in which a physician, midlevel practitioner or dentist performs no tests other than the microscopy procedures. This certificate permits the laboratory to also perform waived tests.

Frequently 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 K Paul Gerstenberg, D O, P A's NPI number?

The NPI number for K Paul Gerstenberg, D O, P A is 1104824507. It was assigned to this organization in the NPPES registry on July 8, 2005.

Where is K Paul Gerstenberg, D O, P A located?

K Paul Gerstenberg, D O, P A is located at 2645 Nall St, Port Neches, TX 77651. The listed phone number is (409) 210-3336.

What is K Paul Gerstenberg, D O, P A's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is K Paul Gerstenberg, D O, P A enrolled in Medicare?

Yes. K Paul Gerstenberg, D O, P A is registered in the Medicare PECOS enrollment system.

When is K Paul Gerstenberg, D O, P A's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), K Paul Gerstenberg, D O, P A holds 2 Medicare enrollments with upcoming revalidation dates. The next is due by December 31, 2026 (DME, Texas, Physician - Family Practice). Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through K Paul Gerstenberg, D O, P A?

According to the CMS Revalidation Reassignment List (October 2026 release), 3 clinicians reassign their Medicare billing to K Paul Gerstenberg, D O, P A, in Family Practice and Nurse Practitioner. 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. Of these, 3 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Does K Paul Gerstenberg, D O, P A hold a CLIA laboratory certificate?

Yes. A Certificate for Provider-Performed Microscopy Procedures (PPMP) (number 45D1010477) is associated with this NPI, valid through March 13, 2027. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.

When was this NPI record last updated?

The NPPES record for K Paul Gerstenberg, D O, P A was last updated on March 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months 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.