NPI age
21 years
Enumerated 2005-05-23
● Active Type 2 · Organization
Northwest Outpatient Cancer Center
Northwest Outpatient Cancer Center is 1 of 422 clinic/center organizations in Texas.
Primary specialty
Clinic/Center
Practice locations
1
0 secondary on file
Status
Active
No deactivations on record
Authorized official
Casimir
Medical Director
Last NPPES update
2010-05-20
Source: monthly bulk 2026-05
How this organization compares
Across 422 active clinic/center providers in Texas.
NPI age
21 years
↑ 7 yr above median
Practice locations
1
0 secondary on file
Subspecialties
0
NPI lifetime · 2005 → 2026
2005-05Enumerated in NPPES
2005
2026
Where they practice
Primary practice location
17323 Red Oak Dr
Houston, TX 770901243
Mailing address
P.o. Box 4356, Dept 664
Houston, TX 772104356
Authorized official
Mirtha T Casimir, M.D.
Medical Director
📞 2814405006
Individual providers at this organization
4 individual providers on file at this primary practice address.
- Mirtha Casimir, M.D. Specialist NPI 1528061306
- Laurent Gressot, M.D. Internal Medicine NPI 1215930367
- Eric Kleinbaum, M.D. Internal Medicine NPI 1932140159
- Charles Yen, M.D. Internal Medicine NPI 1215930268
Specialties
-
Clinic/Center PrimaryAn entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or...
Other names on file (1)
Doing-business-as, former, and alternate names recorded by NPPES.
-
Northwest Cancer Center
Practice context
Multi-provider organization. 4 individual providers 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 →
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- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.