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AMERICA A A L WARREN MD
NPI 1952338956
Internal Medicine in Houston, TX

Active since June 26, 2006PECOS Enrolled
6624 FANNIN ST, ST. LUKE'S TOWER 19TH FLOOR, HOUSTON, TX 77030(713) 442-0000 Get Directions Write a Review

NPPES record last updated: June 23, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About America A A L Warren Md NPPES

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

AMERICA A A L WARREN MD (NPI 1952338956) is an individual internal medicine provider in Houston, Texas, licensed in Texas (L8110) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1952338956
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameAMERICA A A L WARRENCredential: MD
Location Address6624 FANNIN ST, ST. LUKE'S TOWER 19TH FLOORHouston, TX 77030
Mailing Address11511 Shadow Creek PkwyPearland, TX 77584-7298 · (713) 442-0000
Phone(713) 442-0000
Sole ProprietorNo
Enumeration DateJune 26, 2006
Last NPPES UpdateJune 23, 2021
NPPES CertifiedJune 23, 2021
✔ NPI 1952338956 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · L8110
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.
6624 FANNIN ST, Houston, TX 77030
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Other Names 1

Former Name (1)America A A Lentz

Other Identifiers 3

Medicaid166497105TX
Medicaid166497103TX
Medicaid166497104TX

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

America A A L Warren 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.

Medicare Billing Reassignment

Medicare enrollment records show America Warren reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Kelsey-Seybold Medical Group, PLLC
1.2 mi
Multi-Specialty
2727 W HOLCOMBE BLVD
Houston, TX 77025
  • Reassigned Medicare billing, Texas enrollment
  • 1,649 clinicians in this Medicare group
NPI 1013915255 (713) 442-0000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77030 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
$134.06 typical visit price
range $58.24 – $176.98
Typical copayment $33.51 (range $14.56 – $44.24)
Most-billed visit code 99204
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
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. JAIME BENREY MD
Internal Medicine (Cardiovascular Disease)
6624 FANNIN ST, STE 2310
HOUSTON, TX 77030
Harris County (713) 796-2668
MARISOL J SKIBIN P.T.
Physical Therapist
6624 FANNIN ST, SUITE 2600
HOUSTON, TX 77030
Harris County (713) 790-1818
MELANIE EHNI MOUZOON MD
Pediatrics
6624 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 442-0000
SAMAR SHETH MD
Internal Medicine (Cardiovascular Disease)
6624 FANNIN ST, SUITE 2320
HOUSTON, TX 77030
Harris County (832) 355-6676
FRANK TRAVIS GEROW M.D.
Orthopaedic Surgery (Pediatric Orthopaedic Surgery)
6624 FANNIN ST, SUITE 2600
HOUSTON, TX 77030
Harris County (713) 790-1818
DAWN DENISE SHORT CNM
Advanced Practice Midwife
6624 FANNIN ST, SUITE 1800
HOUSTON, TX 77030
Harris County (713) 797-1144
HOUSTON HEART CLINIC
Internal Medicine (Cardiovascular Disease)
6624 FANNIN ST, STE. 1590
HOUSTON, TX 77030
Harris County (713) 759-9901
SUSHANTH BEERAVOLU REDDY DO
Hospitalist
6624 FANNIN ST
HOUSTON, TX 77030
Harris County (713) 442-0427

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 America Warren's NPI number?

The NPI number for America Warren is 1952338956. It was assigned to this individual provider in the NPPES registry on June 26, 2006. The provider is also known as America A A Lentz.

Where is America Warren located?

America Warren practices at 6624 Fannin St St. Luke's Tower 19th Floor, Houston, TX 77030. The listed phone number is (713) 442-0000.

What is America Warren's specialty?

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

Is America Warren enrolled in Medicare?

Yes. America Warren is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for America Warren's services?

According to the CMS Revalidation Reassignment List (October 2026 release), America Warren reassigns Medicare benefits to Kelsey-Seybold Medical Group, PLLC (Houston, TX). The 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 America Warren's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for America Warren was last updated on June 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.