Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mrs. Tammy McGraw Speicher, CRNA

Individual provider Registered Nurse · NPI 1730377391

Mrs. Tammy McGraw Speicher, CRNA is registered under Certified Registered Nurse Anesthetist (CRNA) in Charleston, South Carolina. Qualified in 2007, 19 years ago. Practices with Charleston Gastroenterology Specialists, a 49-clinician group and accepts Medicare assignment. Licensed in South Carolina.

Years since qualifying
19
Licensed in
SC
In the registry since
2007
Specialties on file
2
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

171 Ashley Ave
Charleston, SC 29425-0100
Phone: (843) 792-1414
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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 3549 (SC)
Registered Nurse Taxonomy 163W00000X · Licence 79110 (SC)

Record details

NPI number1730377391
Entity typeIndividual (Type 1)
GenderFemale
Credentials CRNA
Sole proprietorNo
NPI enumeratedOctober 9, 2007
Last updated in NPPESJune 25, 2019

Medicare enrollment

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

Medicare specialtyCERTIFIED REGISTERED NURSE ANESTHETIST (CRNA)
Medical schoolOTHER
Graduated 2007 (19 years in practice)
Group practice Charleston Gastroenterology Specialists — 49 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 patients219
Services billed 220 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 Charleston Gastroenterology Specialists

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 49 clinicians in the practice; 12 are shown here.

Other providers in Charleston