Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mari L Black, NP

Family Nurse Practitioner in Chillicothe, OH · enumerated 2014.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1477969814

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Registry record

Entity type Individual (Type 1)

Name Mari L Black

Credential NP

Sex Female

Practice address 4439 State Route 159 Ste G10, Chillicothe, OH, 45601

Phone (740) 779-4300

Fax (740) 779-4391

Enumeration date Jul 7, 2014

Last updated in NPPES Mar 22, 2019

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 16040 (OH) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
0108051	Medicaid	OH	-
3810027702	Medicaid	WV	-

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 → Validate an NPI →

Frequently asked questions

How do I verify Mari Black's NPI record?

Cross-check NPI 1477969814 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1477969814 active?

Yes, as of the latest NPPES snapshot, NPI 1477969814 is active (record last updated 2019-03-22).

Other providers at this practice address

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Sanjay Mardolkar Pediatrics Physician · Chillicothe, OH NPI 1346237385 Jane Roach Pediatrics Physician · Chillicothe, OH NPI 1528086139 Kristen White Pediatrics Physician · Chillicothe, OH NPI 1275066482 Anna Hippler Huffman Pediatric Nurse Practitioner · Chillicothe, OH NPI 1841880291

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-03-22.