William Martin Carrera, M.D.
Ophthalmology Physician · Oakland, CA
William Martin Carrera, M.D. is an ophthalmology physician with a practice address in Oakland, California, and NPI 1679014013, issued on Mar 18, 2017. Check the license (California A158123, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Martin Carrera
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A158123 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3300 Telegraph Ave, Oakland, CA 94609
- Phone
- (510) 444-1600
- Enumerated
- Mar 18, 2017
- Record last updated
- Jul 16, 2024
- Fax
- (510) 444-5117
- Medicare enrollment
- Enrolled (PECOS I20240229000499); accepts Medicare assignment
- Medical or professional school
- Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2017
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 3300 Telegraph Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Daniel Brinton, M.D.Ophthalmology Physician1114919495
- Jesse Jung, MDOphthalmology Physician1033351689
- Soon Lee, M.D.Ophthalmology Physician1952394553
- Eugene Lit, M.D.Ophthalmology Physician1336132919
- Soraya Rofagha, MDOphthalmology Physician1568687374
Verify William Martin Carrera in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A158123Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average ophthalmology physician in 2024
190 Medicare Part D claims for 76 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 49% of claims.
Most prescribed
- Prednisolone Acetate51 claims
- Latanoprost19 claims
- Ketorolac Tromethamine15 claims
- Dorzolamide-Timolol14 claims
- Ofloxacin14 claims
- Restasis13 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: $520.80
9 payments; by number, the most common kind was food and beverage; the largest payer was Genentech USA, 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
- East Bay Retina Consultants A Medical Group IncOakland, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Martin Carrera among 2,899 ophthalmology physician records in California
William Martin Carrera, 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 2017, is newer than 88% of them.
- NPI issued2017 · 88% of these records are older, 10% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2017 · median 2001 among the 1,907 with a school on file
- Record last updated2024 · 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 Oakland → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- John Alden, MDOakland, CA 946091013986868
- Daniel Brinton, M.D.Oakland, CA 946091114919495
- Cynthia Chiu, M.D.Oakland, CA 946091306852629
- Christopher Dickens, M.D.Oakland, CA 946091962560326
- Melanie Hom, M.D.Oakland, CA 946091508944562
- Erich Horn, MDOakland, CA 946091932205275
- Ernest Langham, MDOakland, CA 946091659472827
- Soon Lee, M.D.Oakland, CA 946091952394553
Common questions
What is William Martin Carrera, M.D.'s NPI number?
William Martin Carrera, M.D.'s National Provider Identifier (NPI) is 1679014013, issued on Mar 18, 2017. An NPI identifies a provider in billing; it is not a license.
Where is William Martin Carrera, M.D. located?
The NPPES record lists a practice address at 3300 Telegraph Ave, Oakland, CA, 94609. Phone: (510) 444-1600. Providers update this record themselves, so call before visiting.
How can I verify William Martin Carrera, M.D.'s license?
NPPES lists California license number A158123, 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 William Martin Carrera, M.D. prescribe under Medicare Part D?
In 2024, William Martin Carrera, M.D. had 190 Medicare Part D claims for 76 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.