Ralph Roach, MD

Ralph Roach is a Hematology & Oncology Physician provider (Internal Medicine) practicing in Chillicothe, OH, registered in the NPPES registry with NPI 1720036734 since 2006. The credential MD stands for Doctor of Medicine.

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NPI	1720036734
Entity type	Individual (Type 1)
Name	Ralph Roach
Credential	MD
Sex	Male
Practice address	4439 ST. RT. 159, SUITE 260, Chillicothe, OH, 45601
Phone	7407797589
Fax	7407797871
Enumeration date	2006-05-04
Last updated in NPPES	2010-04-07

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
207RH0003X	Hematology & Oncology Physician	Primary	35.042080	OH

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
0405949	Medicaid	OH	—

Copy-ready billing details

Provider: Ralph Roach, MD
NPI: 1720036734
Taxonomy: 207RH0003X (Hematology & Oncology Physician)
Address: 4439 ST. RT. 159, SUITE 260, Chillicothe, OH, 45601

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1982826897	Jill Henderson	Individual	Registered Dietitian	Chillicothe, OH

Verify this record

Cross-check NPI 1720036734 against the authoritative CMS record: view Ralph Roach on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Ralph Roach?

Ralph Roach is registered in NPPES with the primary taxonomy of Hematology & Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-10. Provider record last updated 2010-04-07.