Brian Ronald Gross, M.D.
Ophthalmology Physician · Valencia, CA
Brian Ronald Gross, M.D. is an ophthalmology physician with a practice address in Valencia, California, and NPI 1083620066, issued on Jul 31, 2006. Check the license (California G37513, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Brian Ronald Gross
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G37513 CA
Self-reported in NPPES; status is on the state search - Practice location
- 27420 Tourney RD, Valencia, CA 91355
- Phone
- (661) 259-3937
- Enumerated
- Jul 31, 2006
- Record last updated
- Nov 8, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (661) 259-3904
- Medicaid ID
- 2998318 CA
- Medicare enrollment
- Enrolled (PECOS I20091019000218); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 1977
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 27420 Tourney RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sara Jones-Gomberg, MDOphthalmology Physician1588723159
- Ashok Lall, M.D.Internal Medicine Physician1205827623
- Joseph Lavi, M.D.Internal Medicine Physician1912082017
Verify Brian Ronald Gross in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G37513Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% more Medicare Part D claims than the average ophthalmology physician in 2024
2,638 Medicare Part D claims for 653 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Latanoprost1,056 claims
- Dorzolamide-Timolol487 claims
- Brimonidine Tartrate210 claims
- Timolol Maleate164 claims
- Prednisolone Acetate117 claims
- Tobramycin-Dexamethasone93 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): 74.8 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $283.41
10 payments; by number, the most common kind was food and beverage; the largest payer was Dompe US, 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.
Bills Medicare through one group practice
- Craig Helm M D A Professional CorporationValencia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Ronald Gross among 2,899 ophthalmology physician records in California
Brian Ronald Gross, 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1977 · median 2001 among the 1,907 with a school on file
- Record last updated2019 · 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 Valencia → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Nathan Abraham, M.D.Valencia, CA 913551306224456
- Pelin Celiker, M.D.Valencia, CA 913551598405847
- Douglas Engh, M.D. ,F.A.C.S., INC.Valencia, CA 913551538249099
- Herbert Goldman, MDValencia, CA 913551699707224
- Craig Helm, M.D.Valencia, CA 913551588678791
- Jing Jia, MDValencia, CA 913551093384034
- Sara Jones-Gomberg, MDValencia, CA 913551588723159
- Brian Nguyen, MDValencia, CA 913551912469792
Common questions
What is Brian Ronald Gross, M.D.'s NPI number?
Brian Ronald Gross, M.D.'s National Provider Identifier (NPI) is 1083620066, issued on Jul 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Brian Ronald Gross, M.D. located?
The NPPES record lists a practice address at 27420 Tourney RD, Valencia, CA, 91355. Phone: (661) 259-3937. Providers update this record themselves, so call before visiting.
How can I verify Brian Ronald Gross, M.D.'s license?
NPPES lists California license number G37513, 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 Brian Ronald Gross, M.D. prescribe under Medicare Part D?
In 2024, Brian Ronald Gross, M.D. had 2,638 Medicare Part D claims for 653 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Brian Ronald Gross, M.D.'s MIPS final score?
The 2023 MIPS final score is 74.8 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.