NPPES file of Aug 9, 2026

Stefan Alexander Dunauskas

Adult Health Nurse Practitioner · Orange, CA

Stefan Alexander Dunauskas is an adult health nurse practitioner with a practice address in Orange, California, and NPI 1891151148, issued on Dec 31, 2015. Check the license (California 2004038, 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 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1891151148
Name
Stefan Alexander Dunauskas
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License number
2004038 CA
Self-reported in NPPES; status is on the state search
Practice location
280 S Main St, Orange, CA 92868
Phone
(714) 634-4567
Enumerated
Dec 31, 2015
Record last updated
Jun 4, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20160727002295); 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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Also registered at 280 S Main St

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

  1. Natalie AdairPhysician Assistant1538506134
  2. Hazel Ando, A.T.,C.Athletic Trainer1851336416
  3. Lawrence Barnett, MDOrthopaedic Surgery Physician1386631406
  4. Steven Barnett, MDOrthopaedic Surgery Physician1750378030
  5. Paul Beck, MDOrthopaedic Surgery Physician1356322879
  6. Laura Bertsch, PA-CPhysician Assistant1881283299

Verify Stefan Alexander Dunauskas 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 2004038
    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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84% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

206 Medicare Part D claims for 120 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 113 claims were for opioids.

  1. Stefan Dunauskas206
  2. Specialty average1,280

Most prescribed

  1. Hydrocodone-Acetaminophen41 claims
  2. Tramadol Hcl36 claims
  3. Oxycodone Hcl34 claims
  4. Pregabalin18 claims
  5. Gabapentin15 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): 75.5 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.

  1. Qualityout of 100 · 30% of the final score74.5
  2. Costout of 100 · 30%56.5
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $69.72

2 payments; by number, the most common kind was food and beverage; the largest payer was Globus Medical, Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stefan Dunauskas$69.72
  2. Specialty average$946.40

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

  1. Orthopaedic Specialty Institute Medical Group OF Orange CountyOrange, CA

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

Stefan Alexander Dunauskas among 1,405 adult health nurse practitioner records in California

Stefan Alexander Dunauskas is one of 1,405 adult health nurse practitioner records with a practice address in California. 56% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 63% of them.

  • NPI issued2015 · 63% of these records are older, 32% newer
  • In a Medicare fileYes · 56% of these records are
  • In the CMS Doctors and Clinicians fileYes · 31% of these records are
  • Graduated2015 · median 2013 among the 441 with a school on file
  • Record last updated2016 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Health Nurse Practitioner providers in California

There are 1,405 adult health nurse practitioner records in California.

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Jane Brugman, NPOrange, CA 928681225496086
  2. Elaine Mary Joyce Go, NP, MSNOrange, CA 928681386738748
  3. Paula Gull, RNPOrange, CA 928681154476000
  4. Jeoung Kang, NPOrange, CA 928681306324850
  5. Christine Master, N.P.Orange, CA 928681144424904
  6. Segismundo Millan, NP - ADULT GERIATRICOrange, CA 928681831605641
  7. Darcie Peterson, NPOrange, CA 928681114287620
  8. Lupe Ramos, NPOrange, CA 928681972888279

Common questions

What is Stefan Alexander Dunauskas's NPI number?

Stefan Alexander Dunauskas's National Provider Identifier (NPI) is 1891151148, issued on Dec 31, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Stefan Alexander Dunauskas located?

The NPPES record lists a practice address at 280 S Main St, Orange, CA, 92868. Phone: (714) 634-4567. Providers update this record themselves, so call before visiting.

How can I verify Stefan Alexander Dunauskas's license?

NPPES lists California license number 2004038, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Stefan Alexander Dunauskas prescribe under Medicare Part D?

In 2024, Stefan Alexander Dunauskas had 206 Medicare Part D claims for 120 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. Part D covers Medicare prescriptions only.

What is Stefan Alexander Dunauskas's MIPS final score?

The 2023 MIPS final score is 75.5 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.