NPI age
6 years
Enumerated 2020-04-23
● Active Type 2 · Organization
Tmsa - Rheumatology
Tmsa - Rheumatology is 1 of 749 internal medicine organizations in Texas.
Primary specialty
Internal Medicine
Practice locations
1
0 secondary on file
Status
Active
No deactivations on record
Authorized official
Fan
MD
Last NPPES update
2020-08-21
Source: monthly bulk 2026-05
How this organization compares
Across 749 active internal medicine providers in Texas.
NPI age
6 years
↓ 12 yr below median
Practice locations
1
0 secondary on file
Subspecialties
0
NPI lifetime · 2020 → 2026
2020-04Enumerated in NPPES
2020
2026
Where they practice
Primary practice location
8440 Walnut Hill Ln Ste 580
Dallas, TX 752313881
Mailing address
8440 Walnut Hill Ln Ste 580
Dallas, TX 752313881
Authorized official
Yijun Fan, MD
MD
📞 2143455703
Individual providers at this organization
1 individual provider on file at this primary practice address.
- Yijun Fan, M.D. Internal Medicine NPI 1336161751
Specialties
-
Internal Medicine PrimaryAn internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and "collagen" diseases.
Practice context
Multi-provider organization. 1 individual provider on file at this primary address.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Verify the organization is in good standing.Cross-check with the state's business registration and any applicable licensing boards.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.