ONCOLOGY HEMATOLOGY ASSOCIATION INC
NPI 1861469223
Internal Medicine - Hematology & Oncology in Pittsburgh, PA

Q: What is Oncology Hematology Association Inc's NPI number?

The NPI number for Oncology Hematology Association Inc is 1861469223. It was assigned to this organization in the NPPES registry on March 3, 2006.

Q: What is Oncology Hematology Association Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Active since March 03, 2006

5115 CENTRE AVE, 3RD FLOOR, PITTSBURGH, PA 15232(412) 235-1020(412) 235-1030 Get Directions Write a Review

NPPES record last updated: January 29, 2013. Verified against the NPPES registry weekly; last sync: November 01, 2026.

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About Oncology Hematology Association Inc NPPES

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

ONCOLOGY HEMATOLOGY ASSOCIATION INC (NPI 1861469223) is a healthcare organization registered as a hematology & oncology in Pittsburgh, Pennsylvania and active in the NPI registry since March 2006. The organization lists Mark T Ehalt, Sr.director, as its authorized official.

NPPES Registry Identity

NPI1861469223

Entity TypeOrganization

Primary Taxonomy207RH0003X

Legal Business NameONCOLOGY HEMATOLOGY ASSOCIATION INC

Location Address5115 CENTRE AVE, 3RD FLOORPittsburgh, PA 15232-1301

Mailing Address2 Hot Metal St, Quantum One, N430Pittsburgh, PA 15203-2348 · (412) 432-7706 · Fax (412) 432-7691

Phone(412) 235-1020

Fax(412) 235-1030

Organization SubpartNo

Authorized OfficialMark T EhaltSr.director · (412) 647-0943

Enumeration DateMarch 3, 2006

Last NPPES UpdateJanuary 29, 2013

✔ NPI 1861469223 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Also ListedClinical Medical LaboratoryTaxonomy 291U00000X · License 39D0911309 (PA), 39D0179384 (PA), 39D0979602 (PA), 39D0671037 (PA), 39D0979600 (PA), 39D0860900 (PA), 39D0929849 (PA), 39D0683973 (PA), 39D0671038 (PA), 39D0988205 (PA), 39D1056766 (PA), 39D0890691 (PA)

5115 CENTRE AVE, Pittsburgh, PA 15232

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Other Identifiers 29

Other000000158940OH · Anthem Blue Cross Blue Shield

Other001743629WV · Mountain State Blue Cross Blue Shield

Other0016480750055PA · Clia Lab

Medicaid001648075PA

Medicaid2524923OH

Other0016480750056PA · Clia Lab

Other0016480750060PA · Clia Lab

Medicare PIN155735F6VPA

Other0016480750065PA · Clia Lab

Other0016480750064PA · Clia Lab

Other0016480750058PA · Clia Lab

Medicaid2717108OH

Medicaid2658440OH

Medicaid2518654OH

Other0016480750061PA · Clia Lab

Medicaid2524898OH

Medicaid2524905OH

Medicare PINCA5923PA

Medicare PINDD0522OH

Medicaid2571195OH

Other0016480750059PA · Clia Lab

Medicaid2659449OH

Medicaid2568627OH

Medicare PINON9251731OH

Medicare PINON9251732WV

Other0016480750057PA · Clia Lab

Other0016480750063PA · Clia Lab

Medicaid2702650OH

Medicaid2538347OH

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Highmark Blue Cross Blue Shield West Virginia, Molina Healthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Oncology Hematology Association Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

204

Medicare enrollment records show 204 clinicians reassign Medicare billing to Oncology Hematology Association Inc, which bills Medicare for the services they deliver. Of these, 52 practice at this address and 110 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 7

Nurse Practitioner97

Medical Oncology60

Hematology24

Internal Medicine15

Hematology/Oncology6

Hospice/Palliative Care1

Physician Assistant1

Nearest to this location (20)

See all 204

Stephanie Kaiser, CRNP

Nurse Practitioner

NPI 1316209265

5115 CENTRE AVE 3RD FLOOR
Pittsburgh, PA 15232

(412) 235-1020

✔ PECOSSame address

Jessica Sarno, CRNP

Nurse Practitioner

NPI 1467891150

5115 CENTRE AVE FL 3
Pittsburgh, PA 15232

(412) 235-1020

✔ PECOSSame address

Frances Abraham

Nurse Practitioner

NPI 1376005694

5115 CENTRE AVE 4TH FLOOR
Pittsburgh, PA 15232

(412) 647-2811

✔ PECOS✔ Accepts MedicareSame address

Mounzer Agha, M.D.

Hematology

NPI 1669442638

5115 CENTRE AVE 3RD FLOOR
Pittsburgh, PA 15232

(412) 235-1020

✔ PECOS✔ Accepts MedicareSame address

Margaret Avampato, FNP

Nurse Practitioner

NPI 1306535489

5115 CENTRE AVE FL 4
Pittsburgh, PA 15232

(847) 494-3263

✔ PECOS✔ Accepts MedicareSame address

Antoine Bejjani, MD

Internal Medicine

NPI 1124718218

5115 CENTRE AVE FL 3
Pittsburgh, PA 15232

(412) 692-4888

✔ PECOS✔ Accepts MedicareSame address

Leslie Buchanan

Nurse Practitioner

NPI 1104435056

5115 CENTRE AVE 4TH FLOOR
Pittsburgh, PA 15232

(412) 647-2811

✔ PECOS✔ Accepts MedicareSame address

Diwakar Davar

Medical Oncology

NPI 1295965523

5115 CENTRE AVE HILLMAN CANCER CENTER 2ND FLR
Pittsburgh, PA 15232

(412) 623-3398

✔ PECOS✔ Accepts MedicareSame address

Kathleen Dorritie, MD

Hematology

NPI 1730371592

5115 CENTRE AVE 5TH FLOOR, UPMC CANCER PAVILLION
Pittsburgh, PA 15232

(412) 692-4724

✔ PECOS✔ Accepts MedicareSame address

David Friedland

Medical Oncology

NPI 1013988021

5115 CENTRE AVE 3RD FLOOR
Pittsburgh, PA 15232

(412) 235-1020

✔ PECOSSame address

Natalie Galanina, MD

Hematology

NPI 1235372855

5115 CENTRE AVE
Pittsburgh, PA 15232

(415) 572-9678

✔ PECOS✔ Accepts MedicareSame address

Valerie Gao, MD

Internal Medicine

NPI 1467144899

5115 CENTRE AVE FL 3
Pittsburgh, PA 15232

(412) 623-2121

✔ PECOS✔ Accepts MedicareSame address

Vikram Gorantla

Medical Oncology

NPI 1528220779

5115 CENTRE AVE 3RD FLOOR
Pittsburgh, PA 15232

(412) 235-1020

✔ PECOS✔ Accepts MedicareSame address

Richard Grey, MD

Internal Medicine

NPI 1245805399

5115 CENTRE AVE FL 4
Pittsburgh, PA 15232

(412) 864-6600

✔ PECOS✔ Accepts MedicareSame address

Jing Zhou Hou

Hematology

NPI 1053478131

5115 CENTRE AVE FL 3 THE HILLMAN CANCER CENTER
Pittsburgh, PA 15232

(412) 235-1020

✔ PECOS✔ Accepts MedicareSame address

Sawa Ito

Hematology

NPI 1336497676

5115 CENTRE AVE
Pittsburgh, PA 15232

(412) 623-3617

✔ PECOS✔ Accepts MedicareSame address

Zahra Kelly, DO

Medical Oncology

NPI 1821416801

5115 CENTRE AVE FL 3
Pittsburgh, PA 15232

(412) 235-1020

✔ PECOS✔ Accepts MedicareSame address

Monica Malhotra, MD

Medical Oncology

NPI 1912380767

5115 CENTRE AVE FL 3
Pittsburgh, PA 15232

(412) 235-1020

✔ PECOS✔ Accepts MedicareSame address

Michael Porter, MD

Internal Medicine

NPI 1952925505

5115 CENTRE AVE FL 3
Pittsburgh, PA 15232

(412) 235-1020

✔ PECOS✔ Accepts MedicareSame address

Wilton Smith, MD

Internal Medicine

NPI 1073136727

5115 CENTRE AVE
Pittsburgh, PA 15232

(412) 864-6600

✔ PECOS✔ Accepts MedicareSame address

See all 204 clinicians

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

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 Oncology Hematology Association Inc's NPI number?

The NPI number for Oncology Hematology Association Inc is 1861469223. It was assigned to this organization in the NPPES registry on March 3, 2006.

Where is Oncology Hematology Association Inc located?

Oncology Hematology Association Inc is located at 5115 Centre Ave 3rd Floor, Pittsburgh, PA 15232. The listed phone number is (412) 235-1020.

What is Oncology Hematology Association Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Is Oncology Hematology Association Inc enrolled in Medicare?

Yes. Oncology Hematology Association Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Oncology Hematology Association Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 204 clinicians in 7 Medicare specialties reassign their Medicare billing to Oncology Hematology Association Inc. A 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 the clinician's services. The largest specialties are Nurse Practitioner (97), Medical Oncology (60) and Hematology (24). Of these, 52 practice at this address and 110 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

What insurance does Oncology Hematology Association Inc accept?

Health plans from Anthem Blue Cross and Blue Shield, Highmark Blue Cross Blue Shield West Virginia and Molina Healthcare list Oncology Hematology Association Inc 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 Oncology Hematology Association Inc was last updated on January 29, 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.