Mahoning Valley Hematology Oncology Assoc. Inc.
NPI 1215979588 · Hematology & Oncology Physician · Youngstown, OH
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mahoning Valley Hematology Oncology Assoc. Inc. is a Hematology & Oncology Physician organization in Youngstown, OH (NPI 1215979588).
Provider details
- NPI number
- 1215979588
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Chris Knight, Owner(330) 318-1100
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-12
- Last updated
- 2018-11-15
Frequently asked questions
- What is Mahoning Valley Hematology Oncology Assoc. Inc.'s NPI number?
- Mahoning Valley Hematology Oncology Assoc. Inc.'s National Provider Identifier (NPI) is 1215979588, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mahoning Valley Hematology Oncology Assoc. Inc.?
- Mahoning Valley Hematology Oncology Assoc. Inc. is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Mahoning Valley Hematology Oncology Assoc. Inc. located?
- Mahoning Valley Hematology Oncology Assoc. Inc.'s practice location on file with NPPES is 835 Southwestern Run, Youngstown, OH 44514-3688.
- What is Mahoning Valley Hematology Oncology Assoc. Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Mahoning Valley Hematology Oncology Assoc. Inc. is (330) 318-1100.
- Does Mahoning Valley Hematology Oncology Assoc. Inc. accept Medicare?
- Mahoning Valley Hematology Oncology Assoc. Inc. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Mahoning Valley Hematology Oncology Assoc. Inc.?
- The authorized official listed on Mahoning Valley Hematology Oncology Assoc. Inc.'s NPPES record is Chris Knight, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mahoning Valley Hematology Oncology Assoc. Inc.'s NPI active?
- Yes — Mahoning Valley Hematology Oncology Assoc. Inc.'s NPI (1215979588) is active in the NPPES registry as of the last update on 2018-11-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.