Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Jill D Felder, MD

Endocrinology, Diabetes & Metabolism Physician in Steubenville, OH · enumerated 2005.

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

National Provider Identifier

1801871587

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Registry record

Entity type Individual (Type 1)

Name Dr. Jill D Felder

Credential MD

Sex Female

Practice address 1 Ross Park Blvd Ste G-2, Steubenville, OH, 43952

Phone (740) 314-8523

Fax (740) 792-4918

Enumeration date Dec 14, 2005

Last updated in NPPES Dec 11, 2025

Taxonomy & licenses

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License MD045133L (PA) Secondary

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians · License 35.0716385 (OH) Secondary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License 35.071638 (OH) Primary

207RE0101X Endocrinology, Diabetes & Metabolism Physician Allopathic & Osteopathic Physicians · License MD045133L (PA) Secondary

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License MD045133L (PA) Secondary

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
1801871587	Medicaid	WV	-
2019569	Medicaid	OH	-
3002251000	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.

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Frequently asked questions

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.

What specialty is Jill Felder?

Jill Felder is registered in NPPES with the primary taxonomy of Endocrinology, Diabetes & Metabolism Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-11.