NPPES file of Aug 9, 2026

Stephanie Lee Stone, MSPA

Physician Assistant · Newport Beach, CA

Stephanie Lee Stone, MSPA is a physician assistant with a practice address in Newport Beach, California, and NPI 1548579972, issued on Oct 4, 2010. Check the license (California PA21152, 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
1548579972
Name
Stephanie Lee Stone
Credential
MSPA
Primary taxonomy
Physician Assistant 363A00000X
License number
PA21152 CA
Self-reported in NPPES; status is on the state search
Practice location
1441 Avocado Ave Ste 503, Newport Beach, CA 92660
Phone
(949) 718-9020
Enumerated
Oct 4, 2010
Record last updated
Nov 6, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(949) 718-9040
Medicare enrollment
Enrolled (PECOS I20120201000957); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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.
Download card Updates feed

Also registered at 1441 Avocado Ave Ste 503

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

  1. Lindsay Carmack, PA-CPhysician Assistant1588154231
  2. Tamara Cordia, PA-CPhysician Assistant1215185921
  3. Katelyn Dykhuis, PA-CPhysician Assistant1588441778
  4. Karen Kim, D.O.Family Medicine Physician1457384315
  5. Carol Shi, M.DFamily Medicine Physician1033151402

Verify Stephanie Lee Stone 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 PA21152
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

23% more Medicare Part D claims than the average physician assistant in 2024

1,019 Medicare Part D claims for 306 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. 12 claims were for opioids.

  1. Stephanie Stone1,019
  2. Specialty average830

Most prescribed

  1. Amlodipine Besylate62 claims
  2. Atorvastatin Calcium51 claims
  3. Losartan Potassium50 claims
  4. Levothyroxine Sodium48 claims
  5. Gabapentin36 claims
  6. Lisinopril36 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 practice group's MIPS final score for 2023 (Medicare payment program): 84.4 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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 score90.7
  2. Costout of 100 · 30%57.4
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $688.11

32 payments; by number, the most common kind was food and beverage; the largest payer was Lilly USA, LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Stephanie Stone$688.11
  2. Specialty average$841.65

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. Hoag ClinicSan Clemente, CA

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

Stephanie Lee Stone among 14,451 physician assistant records in California

Stephanie Lee Stone, MSPA is one of 14,451 physician assistant 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 2010, is newer than 27% of them.

  • NPI issued2010 · 27% of these records are older, 70% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 50% of these records are
  • Graduated2010 · median 2018 among the 7,214 with a school on file
  • Record last updated2013 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

145 physician assistant records list a practice address in Newport Beach

They are 145 of the 4,414 NPPES records with a practice address in Newport Beach, and 14,451 physician assistant records in California.

The 8 physician assistant records with the nearest ZIP codes

  1. Holly Beardsley, PA-CNewport Beach, CA 926601558514612
  2. Michael P Blasko, PANewport Beach, CA 926601124100300
  3. Brenda Bushey, PA-CNewport Beach, CA 926601700827664
  4. Michael Cordia, PA-CNewport Beach, CA 926601659563369
  5. Tamara Cordia, PA-CNewport Beach, CA 926601215185921
  6. Sally Decastro-Tilsen, P.A.Newport Beach, CA 926601023282019
  7. Sanaz Demehry, PANewport Beach, CA 926601679625024
  8. Karri Knodel, MPAS, MS, PA-C, ATCNewport Beach, CA 926601124232160

Common questions

What is Stephanie Lee Stone, MSPA's NPI number?

Stephanie Lee Stone, MSPA's National Provider Identifier (NPI) is 1548579972, issued on Oct 4, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Stephanie Lee Stone, MSPA located?

The NPPES record lists a practice address at 1441 Avocado Ave Ste 503, Newport Beach, CA, 92660. Phone: (949) 718-9020. Providers update this record themselves, so call before visiting.

How can I verify Stephanie Lee Stone, MSPA's license?

NPPES lists California license number PA21152, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Stephanie Lee Stone, MSPA prescribe under Medicare Part D?

In 2024, Stephanie Lee Stone, MSPA had 1,019 Medicare Part D claims for 306 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Stephanie Lee Stone, MSPA's MIPS final score?

The 2023 MIPS final score is 84.4 of 100, reported for the practice group. 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.