SIERRA OUTPATIENT ANESTHESIA INC
NPI 1821036146
Nurse Anesthetist, Certified Registered in Grass Valley, CA

Active since June 02, 2006
408 SIERRA COLLEGE DR, GRASS VALLEY, CA 95945(530) 271-2282(530) 271-2287 Get Directions Write a Review

NPPES record last updated: August 12, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Aug 12, 2025, Jul 2, 2025, Aug 7, 2024 and 1 more (4 updates tracked since 2023).

About Sierra Outpatient Anesthesia Inc NPPES

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

SIERRA OUTPATIENT ANESTHESIA INC (NPI 1821036146) is a healthcare organization registered as a nurse anesthetist, certified registered in Grass Valley, California and active in the NPI registry since June 2006. The organization maintains 4 additional practice locations and lists Rebecca Seijas-ball, President, as its authorized official.

NPPES Registry Identity

NPI1821036146
Entity TypeOrganization
Primary Taxonomy367500000X
Legal Business NameSIERRA OUTPATIENT ANESTHESIA INC
Location Address408 SIERRA COLLEGE DRGrass Valley, CA 95945-5089
Mailing AddressPo Box 34120Reno, NV 89533-4120 · (877) 747-5050 · Fax (877) 747-5005
Fax(530) 271-2287
Organization SubpartNo
Authorized OfficialRebecca Seijas-ballPresident · (530) 271-2282
Enumeration DateJune 2, 2006
Last NPPES UpdateAugust 12, 20254 updates tracked since enumeration
NPPES CertifiedAugust 12, 2025
✔ NPI 1821036146 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
408 SIERRA COLLEGE DR, Grass Valley, CA 95945

Secondary Practice Locations 4

Location 1460 Plumas Blvd Ste 202Yuba City, CA 95991-5005 · Phone (530) 749-5500 · Fax (530) 749-5520
Location 22801 K St Ste 525Sacramento, CA 95816-5120 · Phone (916) 733-5017 · Fax (916) 733-8738
Location 3455 Plumas BlvdYuba City, CA 95991-5074 · Phone (530) 749-5700 · Fax (530) 749-5720
Location 41420 E Roseville Pkwy Ste 100Roseville, CA 95661-3080 · Phone (916) 677-2488 · Fax (916) 677-2496

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sierra Outpatient Anesthesia Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

5

Medicare enrollment records show 5 clinicians reassign Medicare billing to Sierra Outpatient Anesthesia Inc, which bills Medicare for the services they deliver. Of these, 1 practice at this address. They are listed nearest first.

Clinicians, nearest first (5)

Certified Registered Nurse Anesthetist (CRNA)
NPI 1710217484
408 SIERRA COLLEGE DR
Grass Valley, CA 95945
(530) 362-8612
Same address
Certified Registered Nurse Anesthetist (CRNA)
NPI 1558826461
726 4TH ST
Marysville, CA 95901
(530) 751-4784
✔ Accepts Medicare30 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1942832647
101 W 8TH AVE
Spokane, WA 99204
(509) 474-4971
✔ Accepts Medicare609 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1265754550
1111 E MCDOWELL RD
Phoenix, AZ 85006
(602) 839-2000
✔ Accepts Medicare640 mi
Certified Registered Nurse Anesthetist (CRNA)
NPI 1972960425
1261 S TAMIAMI TRL
Sarasota, FL 34239
(941) 366-2360
✔ PECOS✔ Accepts Medicare2,356 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sierra Outpatient Anesthesia Inc's NPI number?

The NPI number for Sierra Outpatient Anesthesia Inc is 1821036146. It was assigned to this organization in the NPPES registry on June 2, 2006.

Where is Sierra Outpatient Anesthesia Inc located?

Sierra Outpatient Anesthesia Inc is located at 408 Sierra College Dr, Grass Valley, CA 95945. The listed phone number is (530) 271-2282.

What is Sierra Outpatient Anesthesia Inc's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Sierra Outpatient Anesthesia Inc enrolled in Medicare?

Yes. Sierra Outpatient Anesthesia Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Sierra Outpatient Anesthesia Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 5 clinicians, all in Certified Registered Nurse Anesthetist (CRNA), reassign their Medicare billing to Sierra Outpatient Anesthesia Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Of these, 1 practice at this address. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Sierra Outpatient Anesthesia Inc was last updated on August 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.