Robert Alexander Clark, M.D
Ophthalmology Physician · Long Beach, CA
Robert Alexander Clark, M.D is an ophthalmology physician with a practice address in Long Beach, California, and NPI 1043232325, issued on Jul 24, 2006. Check the license (California G080142, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Alexander Clark
- Credential
- M.D
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G080142 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4401 Atlantic Ave Ste 410, Long Beach, CA 90807
- Phone
- (562) 459-3363
- Enumerated
- Jul 24, 2006
- Record last updated
- Jul 29, 2022
- Fax
- (562) 459-3364
- Medicare enrollment
- Enrolled (PECOS I20100922000092); accepts Medicare assignment
- Medical or professional school
- Stanford University School Of Medicine, 1993
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 4401 Atlantic Ave Ste 410
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Madeleine Puig, MDOphthalmology Physician1912560251
Verify Robert Alexander Clark in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G080142Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average ophthalmology physician in 2024
62 Medicare Part D claims for 22 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Neomycin-Polymyxin-Dexameth13 claims
- Restasis12 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.
Industry payments in 2024: $90.35
4 payments; by number, the most common kind was food and beverage; the largest payer was CooperVision 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
- Robert A Clark MD Medical CorporationLong Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert Alexander Clark among 2,899 ophthalmology physician records in California
Robert Alexander Clark, 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
- Graduated1993 · median 2001 among the 1,907 with a school on file
- Record last updated2022 · 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 Long Beach → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Fox Boswell, MDLong Beach, CA 908071467453910
- Cory Brame, M.D.Long Beach, CA 908071821093311
- Michael Brenner, M.D.Long Beach, CA 908071841222023
- Andrew Choy, MD.Long Beach, CA 908071871513168
- Julie Gasperini, M.D.Long Beach, CA 908071104022045
- Shalu Gupta, M.D.Long Beach, CA 908071518187202
- John McBeath, MDLong Beach, CA 908071124020888
- Audrey Mok, MDLong Beach, CA 908071134188519
Common questions
What is Robert Alexander Clark, M.D's NPI number?
Robert Alexander Clark, M.D's National Provider Identifier (NPI) is 1043232325, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Alexander Clark, M.D located?
The NPPES record lists a practice address at 4401 Atlantic Ave Ste 410, Long Beach, CA, 90807. Phone: (562) 459-3363. Providers update this record themselves, so call before visiting.
How can I verify Robert Alexander Clark, M.D's license?
NPPES lists California license number G080142, 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 Robert Alexander Clark, M.D prescribe under Medicare Part D?
In 2024, Robert Alexander Clark, M.D had 62 Medicare Part D claims for 22 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
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.