Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GONCA OZCAN DANNEHY MD
NPI 1063032696
Internal Medicine - Medical Oncology in Houston, TX

Q: What is Gonca Ozcan Dannehy's NPI number?

The NPI number for Gonca Ozcan Dannehy is 1063032696. It was assigned to this individual provider in the NPPES registry on April 23, 2020.

Q: What is Gonca Ozcan Dannehy's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Active since April 23, 2020PECOS Enrolled

1515 HOLCOMBE BLVD, HOUSTON, TX 77030(713) 792-2991 Get Directions Write a Review

NPPES record last updated: August 6, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 6, 2026, Apr 23, 2020 (2 updates tracked since 2020).

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About Gonca Ozcan Dannehy Md NPPES

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

GONCA OZCAN DANNEHY MD (NPI 1063032696) is an individual medical oncology provider in Houston, Texas, licensed in Texas (W3587) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1063032696

Entity TypeIndividualFemale

Primary Taxonomy207RX0202X

Provider Legal NameGONCA OZCAN DANNEHYCredential: MD

Location Address1515 HOLCOMBE BLVDHouston, TX 77030-4000

Mailing AddressPo Box 4439Houston, TX 77210-4439 · (713) 792-2991

Phone(713) 792-2991

Sole ProprietorNo

Enumeration DateApril 23, 2020

Last NPPES UpdateAugust 6, 20262 updates tracked since enumeration

NPPES CertifiedAugust 6, 2026

✔ NPI 1063032696 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RX0202X

License✔ Licensed in TX · W3587

Definition

An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.

1515 HOLCOMBE BLVD, Houston, TX 77030

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Gonca Ozcan Dannehy 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 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

$176.98 typical visit price

range $58.24 – $176.98

Typical copayment $44.24 (range $14.56 – $44.24)

Most-billed visit code 99205

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. MERRY CHEN MD

Psychiatry & Neurology (Neurology)

1515 HOLCOMBE BLVD
HOUSTON, TX 77030

Harris County (713) 792-6161

AMEENA BAGREE MALHOTRA M.D.

Internal Medicine (Nephrology)

1515 HOLCOMBE BLVD, 77030-4009
HOUSTON, TX 77030

Harris County (713) 792-6161

SOLANGE ERLYN COX MD

Surgery

1515 HOLCOMBE BLVD
HOUSTON, TX 77030

Harris County (713) 792-2360

DR. BRYAN KEITH GUILLORY M.D.

Pathology (Anatomic Pathology & Clinical Pathology)

1515 HOLCOMBE BLVD
HOUSTON, TX 77030

Harris County (713) 792-6161

JANUARY Y TSAI MD

Anesthesiology

1515 HOLCOMBE BLVD
HOUSTON, TX 77030

Harris County (713) 792-6161

DR. SUNYOUNG LEE MD

Internal Medicine (Medical Oncology)

1515 HOLCOMBE BLVD
HOUSTON, TX 77030

Harris County (713) 792-6161

MRS. RACHEL KRAMER FUTRELL PA-C

Physician Assistant

1515 HOLCOMBE BLVD
HOUSTON, TX 77030

Harris County (713) 792-6161

MEGAN J TANNER NP-C

Nurse Practitioner

1515 HOLCOMBE BLVD
HOUSTON, TX 77030

Harris County (713) 792-6161

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 Gonca Ozcan Dannehy's NPI number?

The NPI number for Gonca Ozcan Dannehy is 1063032696. It was assigned to this individual provider in the NPPES registry on April 23, 2020.

Where is Gonca Ozcan Dannehy located?

Gonca Ozcan Dannehy practices at 1515 Holcombe Blvd, Houston, TX 77030. The listed phone number is (713) 792-2991.

What is Gonca Ozcan Dannehy's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Gonca Ozcan Dannehy enrolled in Medicare?

Yes. Gonca Ozcan Dannehy is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Gonca Ozcan Dannehy was last updated on August 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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.