Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

GREG TERRASAS MD
NPI 1861486375
Anesthesiology in Rapid City, SD

Q: What is Greg Terrasas's NPI number?

The NPI number for Greg Terrasas is 1861486375. It was assigned to this individual provider in the NPPES registry on September 12, 2005.

Q: What is Greg Terrasas's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Greg Terrasas was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 12, 2005PECOS Enrolled

216 ANAMARIA DR, RAPID CITY, SD 57701(605) 721-0337(605) 721-0043 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Greg Terrasas Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GREG TERRASAS MD (NPI 1861486375) is an individual anesthesiology provider in Rapid City, South Dakota, licensed in South Dakota (4703) and active in the NPI registry since September 2005. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1861486375

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameGREG TERRASASCredential: MD

Location Address216 ANAMARIA DRRapid City, SD 57701-7366

Mailing Address3911 City View DrRapid City, SD 57701-2367 · (605) 721-7447

Phone(605) 721-0337

Fax(605) 721-0043

Sole ProprietorNo

Enumeration DateSeptember 12, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1861486375 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in SD · 4703

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

216 ANAMARIA DR, Rapid City, SD 57701

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Other Identifiers 1

Medicaid5700880SD

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Greg Terrasas Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer– Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

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