Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Garland A Cowan, MD

Individual provider Anesthesiology Physician · NPI 1659349587

Garland A Cowan, MD practises Anesthesiology in Henderson, Nevada. Qualified in 1993, 33 years ago. Practices with Oregon Anesthesiology Group PC, a 233-clinician group and accepts Medicare assignment. Licensed in Nevada.

Years since qualifying
33
Licensed in
NV
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

10120 S Eastern Ave #200
Henderson, NV 89052 Not confirmed with CMS for 15 years — call before visiting
Phone: (702) 487-6510
Fax: (702) 221-2231
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 9460 (NV)

Record details

NPI number1659349587
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 8, 2006
Last updated in NPPESJanuary 4, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Oregon Anesthesiology Group Pc — 233 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients30
Services billed 33 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at Oregon Anesthesiology Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 233 clinicians in the practice; 12 are shown here.

Other providers in Henderson