Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Janeen Joy Masternick-Black, D.O.

Physical Medicine & Rehabilitation Physician in Warren, OH · enumerated 2011.

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

National Provider Identifier

1295019560

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Registry record

Entity type Individual (Type 1)

Name Dr. Janeen Joy Masternick-Black

Credential D.O.

Sex Female

Practice address 1932 Niles Cortland Rd Ne, Warren, OH, 44484

Phone (330) 856-5614

Fax (330) 856-5887

Enumeration date Oct 5, 2011

Last updated in NPPES Oct 22, 2019

Taxonomy & licenses

208100000X Physical Medicine & Rehabilitation Physician Allopathic & Osteopathic Physicians · License 34011831 (OH) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
0124018	Medicaid	OH	-

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

What specialty is Janeen Masternick-Black?

Janeen Masternick-Black is registered in NPPES with the primary taxonomy of Physical Medicine & Rehabilitation 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.

Other providers at this practice address

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Linda O'Neill Occupational Therapist · Warren, OH NPI 1184627713 Vijaykumar Shah Internal Medicine Physician · Warren, OH NPI 1851381016 Nicholas Katz Gastroenterology Physician · Warren, OH NPI 1548246978 Thomas Dunlap Physical Therapist · Warren, OH NPI 1508990656 Daphne Bonner Occupational Therapist · Warren, OH NPI 1760502256 William Pusser Occupational Therapist · Warren, OH NPI 1750574513 Preetha Muthusamy Neuromuscular Medicine (Psychiatry & Neurology) Physician · Warren, OH NPI 1205001161 Consandre Romain Surgery Physician · Warren, OH NPI 1083970370

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-10-22.