Sierra C. Armstrong, FNP
Nurse Practitioner · South Lake Tahoe, CA
Sierra C. Armstrong, FNP is a nurse practitioner with a practice address in South Lake Tahoe, California, and NPI 1417442419, issued on Jun 22, 2018. Check the license (California 95008336, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Sierra C. Armstrong
- Credential
- FNP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 95008336 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1067 4TH St, South Lake Tahoe, CA 96150
- Phone
- (530) 600-1968
- Enumerated
- Jun 22, 2018
- Record last updated
- Mar 26, 2024
- Fax
- (530) 541-3361
- Medicare enrollment
- Enrolled (PECOS I20190327000920); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 1067 4TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gregory Bergner, MDFamily Medicine Physician1851398671
- Erica Cusick, DOPsychiatry Physician1447888680
- Sherellen Gerhart, MDHospice and Palliative Medicine (Internal Medicine) Physician1437179637
- Rebecca Phillipsen, MSW, LCSWClinical Social Worker1548596513
Verify Sierra C. Armstrong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95008336Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% fewer Medicare Part D claims than the average nurse practitioner in 2024
634 Medicare Part D claims for 39 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Bupropion Xl59 claims
- Trazodone Hcl43 claims
- Hydroxyzine Hcl39 claims
- Duloxetine Hcl38 claims
- Dextroamphetamine-Amphetamine37 claims
- Fluoxetine Hcl32 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 93.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $152.17
7 payments; by number, the most common kind was food and beverage; the largest payer was Iti, Inc. (d/b/a Intra-Cellular Therapies, Inc.). The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Barton Medical FoundationSouth Lake Tahoe, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sierra C. Armstrong among 8,223 nurse practitioner records in California
Sierra C. Armstrong, FNP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 56% of them.
- NPI issued2018 · 56% of these records are older, 39% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2016 · median 2017 among the 3,425 with a school on file
- Record last updated2024 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 nurse practitioner records list a practice address in South Lake Tahoe
They are 9 of the 568 NPPES records with a practice address in South Lake Tahoe, and 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in South Lake Tahoe → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Christine Cifelli, NPSouth Lake Tahoe, CA 961501043209059
- Laura Jensen RileySouth Lake Tahoe, CA 961501578216818
- Mary Jones, NPSouth Lake Tahoe, CA 961501730351636
- Barbara Pidermann, FNPSouth Lake Tahoe, CA 961501578529830
- Candice Raynor, NPSouth Lake Tahoe, CA 961501134481104
- Kelly Vial, FNPSouth Lake Tahoe, CA 961501447486295
- Leah Walsh, FNP-BCSouth Lake Tahoe, CA 961501922643386
- Lauren Zeffaro, FNP-BCSouth Lake Tahoe, CA 961501811590813
Common questions
What is Sierra C. Armstrong, FNP's NPI number?
Sierra C. Armstrong, FNP's National Provider Identifier (NPI) is 1417442419, issued on Jun 22, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Sierra C. Armstrong, FNP located?
The NPPES record lists a practice address at 1067 4TH St, South Lake Tahoe, CA, 96150. Phone: (530) 600-1968. Providers update this record themselves, so call before visiting.
How can I verify Sierra C. Armstrong, FNP's license?
NPPES lists California license number 95008336, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Sierra C. Armstrong, FNP prescribe under Medicare Part D?
In 2024, Sierra C. Armstrong, FNP had 634 Medicare Part D claims for 39 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Sierra C. Armstrong, FNP's MIPS final score?
The 2023 MIPS final score is 93.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.
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.