LIDIA M SHOWING MD
NPI 1396778320
Pathology - Anatomic Pathology & Clinical Pathology in Harlingen, TX
About Lidia M Showing Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LIDIA M SHOWING MD (NPI 1396778320) is an individual anatomic pathology & clinical pathology provider in Harlingen, Texas, licensed in Texas (K6325) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, is affiliated with Rio Grande Regional Hospital, and is a graduate of Other (1986).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Lidia M Showing Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Lidia Showing reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mcallen, TX 78503
- Reassigned Medicare billing, Texas enrollment
- 4 clinicians in this Medicare group
Mcallen, TX 78503
- Reassigned Medicare billing, Texas enrollment
- Medicare enrollment name: Ralph Alhalel, P.A.
- 2 clinicians in this Medicare group
Mcallen, TX 78503
- Reassigned Medicare billing, Texas enrollment
- 12 clinicians in this Medicare group
Houston, TX 77004
- Reassigned Medicare billing, Texas enrollment
- 42 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Rio Grande Regional Hospital
Acute Care Hospitals · Mcallen, TXPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 78550 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HARLINGEN, TX 78550
HARLINGEN, TX 78550
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 Lidia Showing's NPI number?
The NPI number for Lidia Showing is 1396778320. It was assigned to this individual provider in the NPPES registry on July 10, 2006.
Where is Lidia Showing located?
Lidia Showing practices at 2101 Pease St, Harlingen, TX 78550. The listed phone number is (956) 423-3335.
What is Lidia Showing's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.
Is Lidia Showing enrolled in Medicare?
Yes. Lidia Showing is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Lidia Showing's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lidia Showing reassigns Medicare benefits to 4 organizations: Mcallen Gastroenterology Clinic LP (Mcallen, TX), Ralph Alhalel PA (Mcallen, TX), Texas Gastroenterology Institute, PA (Mcallen, TX) and Gulf Coast Pathology Program PLLC (Houston, TX). Each 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 Lidia Showing's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lidia Showing accept?
Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 3 other insurers list Lidia Showing 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.
Is Lidia Showing affiliated with any hospitals?
According to CMS data, Lidia Showing is affiliated with Rio Grande Regional Hospital.
When was this NPI record last updated?
The NPPES record for Lidia Showing was last updated on February 11, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Lidia M Showing, MD · NPI 1396778320
Anatomic Pathology & Clinical Pathology physician in Harlingen, Texas. Individual provider, active in the CMS NPPES registry since July 10, 2006.
## Identity
- **NPI:** 1396778320 (Entity type: Individual)
- **Enumerated:** July 10, 2006
- **Primary specialty:** Pathology - Anatomic Pathology & Clinical Pathology · taxonomy 207ZP0102X
- **State license:** K6325 (Texas)
- **Sole proprietor:** No
## Practice location
- **Address:** 2101 PEASE ST, Harlingen, TX 78550-8307
- **Phone:** (956) 423-3335 · **Fax:** (956) 421-5820
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Mcallen Gastroenterology Clinic LP (NPI 1356433379, Mcallen, TX); Ralph Alhalel PA (NPI 1902839046, Mcallen, TX); Texas Gastroenterology Institute, PA (NPI 1194020453, Mcallen, TX); Gulf Coast Pathology Program PLLC (NPI 1629643069, Houston, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1986
## Record status
- **NPPES last updated:** February 11, 2013
- **Other identifiers:** Medicare UPIN H78887 (TX); Medicaid 158439302 (TX); Medicare ID-Type Unspecified 8G3898 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1396778320) · Data from the CMS NPPES public registry.