NPPES file of Aug 9, 2026

Gemma Sian Pamela Nilsson

Certified Registered Nurse Anesthetist · Sacramento, CA

Gemma Sian Pamela Nilsson is a certified registered nurse anesthetist with a practice address in Sacramento, California, and NPI 1790664027, issued on Aug 29, 2025. Check the license (California 95002677, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1790664027
Name
Gemma Sian Pamela Nilsson
Primary taxonomy
Certified Registered Nurse Anesthetist 367500000X
License numbers
95002677 CA
155583 CO
Self-reported in NPPES; status is on the state search
Practice location
4001 J St, Sacramento, CA 95819
Phone
(916) 453-4545
Enumerated
Aug 29, 2025
Record last updated
Sep 26, 2025
Medicare enrollment
Enrolled (PECOS I20251015003006); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest certified registered nurse anesthetist records → All 2,943 in California → Look up another NPI →

Also registered at 4001 J St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jason Adams, PA-CPhysician Assistant1447539838
  2. Robert Allen, M.D.Hospitalist Physician1558586503
  3. Diane Bajada, MSN, FNPNurse Practitioner1932354321
  4. Larry Baker, PAPhysician Assistant1689673709
  5. Breana Baker-HushClinical Social Worker1134505266
  6. Aselle Barak, PHARMDPharmacist1659191872

Verify Gemma Sian Pamela Nilsson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license 95002677    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Cep America - Anesthesia PCSacramento, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Gemma Sian Pamela Nilsson among 2,943 certified registered nurse anesthetist records in California

Gemma Sian Pamela Nilsson is one of 2,943 certified registered nurse anesthetist records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2025, is newer than 97% of them.

  • NPI issued2025 · 97% of these records are older, under 1% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2025 · median 2016 among the 2,089 with a school on file
  • Record last updated2025 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 367500000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Certified Registered Nurse Anesthetist providers in California

There are 2,943 certified registered nurse anesthetist records in California.

All 2,943 in California → Every provider in Sacramento → Certified Registered Nurse Anesthetist nationwide →

The 8 certified registered nurse anesthetist records with the nearest ZIP codes

  1. Jessica Belding, CRNASacramento, CA 958191295138840
  2. Jacob Dees, CRNASacramento, CA 958191902265549
  3. Kelsey JohnsonSacramento, CA 958191265062210
  4. Jerad Morris, RNSacramento, CA 958191205288222
  5. Sandy NoblettSacramento, CA 958191003466616
  6. Thomas Chezik, CRNA, DNAPSacramento, CA 958201447021415
  7. Caitlyn Bettencourt, RNSacramento, CA 958171013645456
  8. Katherine BishopSacramento, CA 958171841986197

Common questions

What is Gemma Sian Pamela Nilsson's NPI number?

Gemma Sian Pamela Nilsson's National Provider Identifier (NPI) is 1790664027, issued on Aug 29, 2025. An NPI identifies a provider in billing; it is not a license.

Where is Gemma Sian Pamela Nilsson located?

The NPPES record lists a practice address at 4001 J St, Sacramento, CA, 95819. Phone: (916) 453-4545. Providers update this record themselves, so call before visiting.

How can I verify Gemma Sian Pamela Nilsson's license?

NPPES lists California license number 95002677, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.