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

Tammy Diane Vermeulen, NURSEPRACTITIONER

Individual provider Acute Care Nurse Practitioner · NPI 1598095143

Tammy Diane Vermeulen, NURSEPRACTITIONER is a Nurse Practitioner in Oklahoma City, Oklahoma. Qualified in 2009, 17 years ago. Practices with Integris Ambulatory Care Corporation, a 683-clinician group and accepts Medicare assignment. Licensed in Oklahoma.

Years since qualifying
17
Licensed in
OK
In the registry since
2010
Specialties on file
2
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Practice location Address checks out

4221 S Western Ave Ste 4005
Oklahoma City, OK 73109-3436
Phone: (405) 644-5040
Fax: (405) 644-5039
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 77115 (OK)
Family Nurse Practitioner Taxonomy 363LF0000X · Licence 77115 (OK)

Record details

NPI number1598095143
Entity typeIndividual (Type 1)
GenderFemale
Credentials NURSEPRACTITIONER
Sole proprietorNo
NPI enumeratedJanuary 4, 2010
Last updated in NPPESSeptember 28, 2021
Certification dateSeptember 28, 2021

Medicare enrollment

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

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Integris Ambulatory Care Corporation — 683 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients331
Services billed 457 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Colleagues at Integris Ambulatory Care Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 683 clinicians in the practice; 12 are shown here.

Other providers in Oklahoma City