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Dr. Jonathan L Klein, M.D.

Hematology (Pathology) Physician in Maryville, TN · enumerated 2010 · practices at Molecular Pathology Laboratory Network Inc.

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

National Provider Identifier

1114239308

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Registry record

Entity type Individual (Type 1)
Name Dr. Jonathan L Klein
Credential M.D.
Sex Male
Practice address 250 E Broadway Ave, Maryville, TN, 37804
Phone (865) 380-9746
Enumeration date Jul 5, 2010
Last updated in NPPES Oct 10, 2012

Taxonomy & licenses

207ZH0000X Hematology (Pathology) Physician Allopathic & Osteopathic Physicians · License 2010003222 (MO) Primary
207ZP0101X Anatomic Pathology Physician Allopathic & Osteopathic Physicians · License 2010003222 (MO) Secondary
207ZP0105X Clinical Pathology/Laboratory Medicine Physician Allopathic & Osteopathic Physicians · License 2010003222 (MO) Secondary
207ZP0007X Molecular Genetic Pathology (Pathology) Physician Allopathic & Osteopathic Physicians · License 487634 (TN) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

What specialty is Jonathan Klein?
Jonathan Klein is registered in NPPES with the primary taxonomy of Hematology (Pathology) 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-10.