James J Diffee, MD
James J Diffee is a Internal Medicine Physician provider (Internal Medicine) practicing in Jackson, TN, registered in the NPPES registry with NPI 1518952514 since 2005. The credential MD stands for Doctor of Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1518952514 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | James J Diffee |
| Credential | MD |
| Sex | Male |
| Practice address | 2863 HIGHWAY 45 BYP, Jackson, TN, 38305 |
| Phone | 7316641375 |
| Fax | 7316641378 |
| Enumeration date | 2005-09-15 |
| Last updated in NPPES | 2012-11-29 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 207R00000X | Internal Medicine Physician | Primary | 11702 | TN |
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 |
|---|---|---|---|
| 3010985 | Medicaid | TN | — |
Copy-ready billing details
Provider: James Diffee, MD NPI: 1518952514 Taxonomy: 207R00000X (Internal Medicine Physician) Address: 2863 HIGHWAY 45 BYP, Jackson, TN, 38305
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1285629386 | Jackson Clinic PA | Organization | Internal Medicine Physician | Jackson, TN |
| 1134114150 | David Garey | Individual | Family Medicine Physician | Jackson, TN |
| 1386639136 | Mary Anderson | Individual | Internal Medicine Physician | Jackson, TN |
| 1205821998 | Salomon Asmar | Individual | Hematology (Internal Medicine) Physician | Jackson, TN |
| 1891780474 | William Bryan | Individual | Family Medicine Physician | Jackson, TN |
| 1629063227 | Robert Gilroy | Individual | Pulmonary Disease Physician | Jackson, TN |
| 1992772255 | Dana Hager | Individual | Pulmonary Disease Physician | Jackson, TN |
| 1174590251 | Natasha Mahajan | Individual | Internal Medicine Physician | Jackson, TN |
Verify this record
Cross-check NPI 1518952514 against the authoritative CMS record: view James J Diffee 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
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2012-11-29.