Marc Howard Shomer, M.D., PH.D.
Ophthalmology Physician · Upland, CA
Marc Howard Shomer, M.D., PH.D. is an ophthalmology physician with a practice address in Upland, California, and NPI 1457457483, issued on Sep 16, 2006. Check the license (California A95190, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marc Howard Shomer
- Credential
- M.D., PH.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A95190 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1298 W 7TH St, Upland, CA 91786
- Phone
- (909) 981-9800
- Enumerated
- Sep 16, 2006
- Record last updated
- Jul 21, 2026
- Fax
- (909) 946-3937
- Medicare enrollment
- Enrolled (PECOS I20081211000279); may accept Medicare assignment
- Medical or professional school
- Un Of California, Irvine, College Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 1298 W 7TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Gunzenhauser, MDOphthalmology Physician1457988065
Verify Marc Howard Shomer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A95190Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1% more Medicare Part D claims than the average ophthalmology physician in 2024
1,526 Medicare Part D claims for 371 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D.
Most prescribed
- Latanoprost291 claims
- Prednisolone Acetate164 claims
- Brimonidine Tartrate126 claims
- Ketorolac Tromethamine126 claims
- Moxifloxacin123 claims
- Dorzolamide-Timolol92 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): 0 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: $2,338.73
21 payments; by number, the most common kind was food and beverage; the largest payer was ModernaTX, 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 3 group practices
- Advanced Medical And Urgent Care CenterUpland, CA
- Laguna Beach Urgent Care IncLaguna Beach, CA
- Marc H Shomer MD Phd IncUpland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc Howard Shomer among 2,899 ophthalmology physician records in California
Marc Howard Shomer, M.D., PH.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
- Graduated2004 · median 2001 among the 1,907 with a school on file
- Record last updated2026 · 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 Upland → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Pamela Bekendam, M.D.Upland, CA 917861225135288
- Peter Bekendam, MDUpland, CA 917861740468263
- Siddharth Bhargava, MDUpland, CA 917861043849078
- Andrea Ching, M.D.Upland, CA 917861669495214
- Kweku Grant-Acquah, M.D.Upland, CA 917861831327626
- Robert Gunzenhauser, MDUpland, CA 917861457988065
- Julie King, M.D.Upland, CA 917861518980069
- Richmond Roeske, M.D.Upland, CA 917861720009913
Common questions
What is Marc Howard Shomer, M.D., PH.D.'s NPI number?
Marc Howard Shomer, M.D., PH.D.'s National Provider Identifier (NPI) is 1457457483, issued on Sep 16, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marc Howard Shomer, M.D., PH.D. located?
The NPPES record lists a practice address at 1298 W 7TH St, Upland, CA, 91786. Phone: (909) 981-9800. Providers update this record themselves, so call before visiting.
How can I verify Marc Howard Shomer, M.D., PH.D.'s license?
NPPES lists California license number A95190, 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 Marc Howard Shomer, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Marc Howard Shomer, M.D., PH.D. had 1,526 Medicare Part D claims for 371 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Marc Howard Shomer, M.D., PH.D.'s MIPS final score?
The 2023 MIPS final score is 0 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.