HANNAH O'NEILL
NPI 1295438513
Internal Medicine in Houston, TX

Q: What is Hannah O'neill's NPI number?

The NPI number for Hannah O'neill is 1295438513. It was assigned to this individual provider in the NPPES registry on March 24, 2023.

Q: What is Hannah O'neill's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Hannah O'neill was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.

Active since March 24, 2023PECOS Enrolled

6550 FANNIN ST, HOUSTON, TX 77030(713) 790-3311(713) 790-3023 Get Directions Write a Review

NPPES record last updated: August 7, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 7, 2026, Mar 24, 2023 (2 updates tracked since 2023).

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About Hannah O'neill NPPES

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

HANNAH O'NEILL (NPI 1295438513) is an individual internal medicine provider in Houston, Texas, licensed in Texas (W7097) and active in the NPI registry since March 2023. She is enrolled in Medicare PECOS and is a graduate of Southern Illinois University School Of Medicine (2023).

NPPES Registry Identity

NPI1295438513

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameHANNAH O'NEILL

Location Address6550 FANNIN STHouston, TX 77030-2717

Mailing Address4101 Greenbriar Dr Ste 122gHouston, TX 77098-5266 · (713) 790-3311 · Fax (713) 790-3023

Phone(713) 790-3311

Fax(713) 790-3023

Sole ProprietorNo

Medical School CMSSouthern Illinois University School Of MedicineGraduated 2023

Enumeration DateMarch 24, 2023

Last NPPES UpdateAugust 7, 20262 updates tracked since enumeration

NPPES CertifiedAugust 7, 2026

✔ NPI 1295438513 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 · W7097

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.

6550 FANNIN ST, Houston, TX 77030

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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.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Hannah O'neill is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7911466008

PECOS Enrollment IDI20260828002490

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 Hannah O'neill reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Medical Center Hospitalist Associates PLLC

0.2 mi

Internal Medicine

6565 FANNIN ST
Houston, TX 77030

Reassigned Medicare billing, Texas enrollment
45 clinicians in this Medicare group

NPI 1770855710 (713) 426-9171

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.

MEGAN MCCLANAHAN

Student in an Organized Health Care Education/Training Program

6550 FANNIN ST
HOUSTON, TX 77030

Harris County (713) 441-5155

MARIANNE CARLSON PSYD

Psychologist (Clinical)

6550 FANNIN ST
HOUSTON, TX 77030

Harris County (346) 248-2040

MARIE MCLAIN P.A.

Physician Assistant

6550 FANNIN ST, SMITH TOWER, SUITE 1901
HOUSTON, TX 77030

Harris County (713) 441-1100

DALIA MOGHAZY MD

Obstetrics & Gynecology

6550 FANNIN ST
HOUSTON, TX 77030

Harris County (713) 790-3311

YVONNE I-FANG CHU M.D.

Ophthalmology

6550 FANNIN ST, SUITE 1501
HOUSTON, TX 77030

Harris County (713) 798-6100

DR. SAM JERRY LONG D.D.S.

Dentist (General Practice)

6550 FANNIN ST, STE 2103
HOUSTON, TX 77030

Harris County (713) 797-0846

THOMAS W KNIGHT MD

Internal Medicine

6550 FANNIN ST, SMITH 1101
HOUSTON, TX 77030

Harris County (713) 441-0006

DR. JOOHI JIMENEZ-SHAHED M.D.

Psychiatry & Neurology (Neurology)

6550 FANNIN ST, SUITE 1801
HOUSTON, TX 77030

Harris County (713) 798-5975

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 Hannah O'neill's NPI number?

The NPI number for Hannah O'neill is 1295438513. It was assigned to this individual provider in the NPPES registry on March 24, 2023.

Where is Hannah O'neill located?

Hannah O'neill practices at 6550 Fannin St, Houston, TX 77030. The listed phone number is (713) 790-3311.

What is Hannah O'neill's specialty?

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

Is Hannah O'neill enrolled in Medicare?

Yes. Hannah O'neill is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Hannah O'neill's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Hannah O'neill reassigns Medicare benefits to Medical Center Hospitalist Associates 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 Hannah O'neill's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Hannah O'neill accept?

Health plans from Blue Cross and Blue Shield of Texas list Hannah O'neill 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 Hannah O'neill was last updated on August 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.