Garrick Chak, M.D.
Ophthalmology Physician · Long Beach, CA
Garrick Chak, M.D. is an ophthalmology physician with a practice address in Long Beach, California, and NPI 1497047526, issued on May 9, 2011. Check the license (California A118847, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Garrick Chak
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A118847 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5901 E 7TH St, Long Beach, CA 90822
- Phone
- (949) 824-6109
- Enumerated
- May 9, 2011
- Record last updated
- Nov 30, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20151112002281); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 2010
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 5901 E 7TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nneoma Achikam, LCSW, BCDClinical Social Worker1114182953
- Sameera Ahmad, ODOptometrist1164117891
- Sama Alabbas, PHARMDPharmacist1366165193
- Lawrence Albers, MDPsychiatry Physician1871697300
- Abby AlexanderOptometrist1871113068
- Tamara Alexander, PT, DPTPhysical Therapist1922116714
Verify Garrick Chak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A118847Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.3 times the Medicare Part D claims of the average ophthalmology physician in 2024
6,464 Medicare Part D claims for 1,417 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Latanoprost1,551 claims
- Dorzolamide-Timolol1,036 claims
- Prednisolone Acetate830 claims
- Brimonidine Tartrate629 claims
- Timolol Maleate406 claims
- Dorzolamide Hcl314 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: $241.00
3 payments; by number, the most common kind was food and beverage; the largest payer was Sight Sciences, 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
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Garrick Chak among 2,899 ophthalmology physician records in California
Garrick Chak, 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 2011, is newer than 76% of them.
- NPI issued2011 · 76% of these records are older, 22% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2010 · median 2001 among the 1,907 with a school on file
- Record last updated2021 · 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
- Ronald Gaster, MDLong Beach, CA 908221306940325
- Huy Ly, M.D.Long Beach, CA 908221659735835
- Majid Moarefi, M.D.Long Beach, CA 908221275890246
- Doris Schoon, M.D.Long Beach, CA 908221952408908
- Hans Hertzog, M.D.Long Beach, CA 908151851616064
- Leif Hertzog, MDLong Beach, CA 908151528139367
- Maltish LorenzoLong Beach, CA 908151760010276
- Ravi Menghani, M.D., MBALong Beach, CA 908151518285360
Common questions
What is Garrick Chak, M.D.'s NPI number?
Garrick Chak, M.D.'s National Provider Identifier (NPI) is 1497047526, issued on May 9, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Garrick Chak, M.D. located?
The NPPES record lists a practice address at 5901 E 7TH St, Long Beach, CA, 90822. Phone: (949) 824-6109. Providers update this record themselves, so call before visiting.
How can I verify Garrick Chak, M.D.'s license?
NPPES lists California license number A118847, 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 Garrick Chak, M.D. prescribe under Medicare Part D?
In 2024, Garrick Chak, M.D. had 6,464 Medicare Part D claims for 1,417 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.