NPI age
19 years
Enumerated 2007-01-29
● Active Type 2 · Organization
The Osler Group Llp
The Osler Group Llp is 1 of 2301 internal medicine organizations in Texas.
Primary specialty
Internal Medicine
Practice locations
1
0 secondary on file
Status
Active
No deactivations on record
Authorized official
Kassanoff
Owner-Physician
Last NPPES update
2020-08-22
Source: monthly bulk 2026-05
How this organization compares
Across 2301 active internal medicine providers in Texas.
NPI age
19 years
≈ at median (19 yr)
Practice locations
1
0 secondary on file
Subspecialties
0
NPI lifetime · 2007 → 2026
2007-01Enumerated in NPPES
2007
2026
Where they practice
Primary practice location
7115 Greenville, Suite 220
Dallas, TX 752315100
Mailing address
7115 Greenville Ave., Suite 220
Dallas, TX 752315100
Authorized official
Arnold H Kassanoff, MD
Owner-Physician
📞 2143697115
Specialties
-
Internal Medicine PrimaryAn internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Practice context
Single-site organization. Only one practice location on file.
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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.