Stephen C. Dinsmore, M.D.
Ophthalmology Physician · Torrance, CA
Stephen C. Dinsmore, M.D. is an ophthalmology physician with a practice address in Torrance, California, and NPI 1891906707, issued on May 24, 2007. Check the license (California WG32005, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Stephen C. Dinsmore
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- WG32005 CA
Self-reported in NPPES; status is on the state search - Practice location
- 19000 Hawthorne Blvd, Torrance, CA 90503
- Phone
- (310) 370-3628
- Enumerated
- May 24, 2007
- Record last updated
- Nov 9, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (310) 371-7863
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 19000 Hawthorne Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melissa Albrecht, P.T.Physical Therapist1770854614
- Terry Alkana, MDOphthalmology Physician1770666307
- Robert Avila, PTPhysical Therapist1881679967
- Audrey Dewhirst, OTR/L/CHT, HTC, PAMHand Occupational Therapist1134179724
- Stuart Gold, M.D.Orthopaedic Surgery Physician1790874923
- Jennifer Hsu, M.D.Orthopaedic Hand Surgery Physician1558521104
Verify Stephen C. Dinsmore in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license WG32005Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average ophthalmology physician in 2024
981 Medicare Part D claims for 260 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Latanoprost130 claims
- Dorzolamide Hcl127 claims
- Vyzulta97 claims
- Brimonidine Tartrate85 claims
- Timolol Maleate69 claims
- Prednisolone Acetate59 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $107.53
5 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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.
Stephen C. Dinsmore among 2,899 ophthalmology physician records in California
Stephen C. Dinsmore, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 55% of them.
- NPI issued2007 · 55% of these records are older, 33% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2011 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Torrance → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Terry Alkana, MDTorrance, CA 905031770666307
- Carol Davis, M.D.Torrance, CA 905031629167531
- Ron Gallemore, MDTorrance, CA 905031912968496
- Michael Harwood, MDTorrance, CA 905031881782894
- Michael Heeg, M.D.Torrance, CA 905031972555142
- Shyun Jeng, M.D.Torrance, CA 905031154375566
- Arbi Khemichian, MDTorrance, CA 905031003056516
- Henry Noguchi, MDTorrance, CA 905031770571382
Common questions
What is Stephen C. Dinsmore, M.D.'s NPI number?
Stephen C. Dinsmore, M.D.'s National Provider Identifier (NPI) is 1891906707, issued on May 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Stephen C. Dinsmore, M.D. located?
The NPPES record lists a practice address at 19000 Hawthorne Blvd, Torrance, CA, 90503. Phone: (310) 370-3628. Providers update this record themselves, so call before visiting.
How can I verify Stephen C. Dinsmore, M.D.'s license?
NPPES lists California license number WG32005, 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 Stephen C. Dinsmore, M.D. prescribe under Medicare Part D?
In 2024, Stephen C. Dinsmore, M.D. had 981 Medicare Part D claims for 260 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Stephen C. Dinsmore, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.