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

Individual provider Certified Registered Nurse Anesthetist · NPI 1639148505

Erik H Groscost, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Oak Ridge, Tennessee. Qualified in 1998, 28 years ago. Practices with Resource Anesthesia, PC, a 72-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
28
Licensed in
TN
In the registry since
2006
What do these letters mean?
CRNA — Certified Registered Nurse Anesthetist
An advanced practice nurse who administers anaesthesia.

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Practice location Address checks out

990 Oak Ridge Tpke
Oak Ridge, TN 37830-6976 Not confirmed with CMS for 19 years — call before visiting
Phone: (865) 481-1112
Fax: (770) 237-1124
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Certified Registered Nurse Anesthetist (primary) Taxonomy 367500000X · Licence 145957 (TN)

Record details

NPI number1639148505
Entity typeIndividual (Type 1)
GenderMale
Credentials CRNA
Sole proprietorNo
NPI enumeratedMarch 14, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Resource Anesthesia, P.C. — 72 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients155
Services billed 155 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Colleagues at Resource Anesthesia, PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 72 clinicians in the practice; 12 are shown here.

Other providers in Oak Ridge