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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DR. KARLA LOPEZ MD
NPI 1689029696
Internal Medicine in Harlingen, TX

Active since April 27, 2016PECOS Enrolled
1401 S RANGERVILLE RD, HARLINGEN, TX 78552(956) 364-8000 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jul 7, 2026, Oct 8, 2020 (2 updates tracked since 2020).

About Dr. Karla Lopez Md NPPES

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

DR. KARLA LOPEZ MD (NPI 1689029696) is an individual internal medicine provider in Harlingen, Texas, licensed in Texas (S4016) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1689029696
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. KARLA LOPEZCredential: MD
Location Address1401 S RANGERVILLE RDHarlingen, TX 78552-7638
Mailing Address1401 S Rangerville RdHarlingen, TX 78552-7638 · (956) 364-8000
Phone(956) 364-8000
Sole ProprietorNo
Enumeration DateApril 27, 2016
Last NPPES UpdateJuly 7, 20262 updates tracked since enumeration
NPPES CertifiedJuly 7, 2026
✔ NPI 1689029696 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · S4016
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedPediatricsTaxonomy 208000000X · License S4016 (TX)
1401 S RANGERVILLE RD, Harlingen, TX 78552
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Karla Lopez Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78552 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

DR. LEAH B NUNEZ PHARMD
Pharmacist (Psychiatric)
1401 S RANGERVILLE RD
HARLINGEN, TX 78552
Cameron County (956) 364-8264
MS. DANAJI DZOARA GONZALEZ LCSW
Social Worker (Clinical)
1401 S RANGERVILLE RD
HARLINGEN, TX 78552
Cameron County (956) 322-7708
RIO GRANDE STATE CENTER
Clinic/Center (Health Service)
1401 S RANGERVILLE RD
HARLINGEN, TX 78552
Cameron County (956) 364-8375
DR. MICHELLE SALINAS PHARM D
Pharmacist
1401 S RANGERVILLE RD
HARLINGEN, TX 78552
Cameron County (956) 364-8741
SOUTH TEXAS HEALTH CARE SYSTEM
Pharmacy
1401 S RANGERVILLE RD, OPC PHARMACY - BLDG 504
HARLINGEN, TX 78552
Cameron County (956) 364-8741
J. DON WATHERS M.D.
Psychiatry & Neurology (Psychiatry)
1401 S RANGERVILLE RD
HARLINGEN, TX 78552
Cameron County (956) 364-8456
MRS. VERONICA HAYES R.D.
Dietitian, Registered
1401 S RANGERVILLE RD
HARLINGEN, TX 78552
Cameron County (956) 364-8782
HEALTH AND HUMAN SERVICES COMMISSION
Pharmacy (Long Term Care Pharmacy)
1401 S RANGERVILLE RD
HARLINGEN, TX 78552
Cameron County (956) 425-8900

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 Karla Lopez's NPI number?

The NPI number for Karla Lopez is 1689029696. It was assigned to this individual provider in the NPPES registry on April 27, 2016.

Where is Karla Lopez located?

Karla Lopez practices at 1401 S Rangerville Rd, Harlingen, TX 78552. The listed phone number is (956) 364-8000.

What is Karla Lopez's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Karla Lopez enrolled in Medicare?

Yes. Karla Lopez is registered in the Medicare PECOS enrollment system.

What insurance does Karla Lopez accept?

Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Karla Lopez 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 Karla Lopez was last updated on July 7, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.