Helen Stosel, M.D.
Endocrinology, Diabetes & Metabolism Physician · Mission Viejo, CA
Helen Stosel, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Mission Viejo, California, and NPI 1952337362, issued on Jun 25, 2006. Check the license (California G68931, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Helen Stosel
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- G68931 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25910 Acero Ste 250, Mission Viejo, CA 92691
- Phone
- (949) 951-7100
- Enumerated
- Jun 25, 2006
- Record last updated
- Aug 27, 2024
- Fax
- (949) 951-7110
- Medicaid ID
- 00G689310 CA
- Medicare enrollment
- Enrolled (PECOS I20041211000033); may accept Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 1,131 in California → Look up another NPI →
Verify Helen Stosel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G68931Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
40% more Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
3,680 Medicare Part D claims for 290 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Levothyroxine Sodium362 claims
- Synthroid319 claims
- Metformin Hcl Er301 claims
- Liothyronine Sodium243 claims
- Rosuvastatin Calcium180 claims
- Ozempic176 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): 95.8 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: $648.84
38 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 5,661 providers of this specialty with any payment received $5,742.15 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.
Helen Stosel among 1,131 endocrinology, diabetes & metabolism physician records in California
Helen Stosel, M.D. is one of 1,131 endocrinology, diabetes & metabolism physician records with a practice address in California. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 54% newer
- In a Medicare fileYes · 84% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1988 · median 2003 among the 779 with a school on file
- Record last updated2024 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in California
There are 1,131 endocrinology, diabetes & metabolism physician records in California.
All 1,131 in California → Every provider in Mission Viejo → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Joseph Barrera, M.D.Mission Viejo, CA 926911629054630
- Jessica Chan, MDMission Viejo, CA 926911275927485
- Lisa Dao, MDMission Viejo, CA 926911114422730
- Karen Frankwich, MDMission Viejo, CA 926911316100415
- Alireza Hosseini, MDMission Viejo, CA 926911629324140
- Mim Mulford, M.D.Mission Viejo, CA 926911235116542
- Erene Sami, M.D.Mission Viejo, CA 926911023335817
- Neil Tran, MDMission Viejo, CA 926911316096688
Common questions
What is Helen Stosel, M.D.'s NPI number?
Helen Stosel, M.D.'s National Provider Identifier (NPI) is 1952337362, issued on Jun 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Helen Stosel, M.D. located?
The NPPES record lists a practice address at 25910 Acero Ste 250, Mission Viejo, CA, 92691. Phone: (949) 951-7100. Providers update this record themselves, so call before visiting.
How can I verify Helen Stosel, M.D.'s license?
NPPES lists California license number G68931, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Helen Stosel, M.D. prescribe under Medicare Part D?
In 2024, Helen Stosel, M.D. had 3,680 Medicare Part D claims for 290 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Helen Stosel, M.D.'s MIPS final score?
The 2023 MIPS final score is 95.8 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.