Calvin Eng, M.D.
Ophthalmology Physician · Monterey Park, CA
Calvin Eng, M.D. is an ophthalmology physician with a practice address in Monterey Park, California, and NPI 1225039092, issued on Aug 3, 2005. Check the license (California G55239, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Calvin Eng
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- G55239 CA
Self-reported in NPPES; status is on the state search - Practice location
- 850 S Atlantic Blvd, Monterey Park, CA 91754
- Phone
- (626) 289-8260
- Enumerated
- Aug 3, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (626) 289-4242
- Medicaid IDs
- GR0048692 CA
GR0048690 CA
00G552390 CA - Medicare enrollment
- Enrolled (PECOS I20051104000724); accepts Medicare assignment
- Medical or professional school
- University Of California, San Francisco School Of Medicine, 1984
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 850 S Atlantic Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kuang Huang, MDPsychiatry Physician1962566653
- Fernando Ibarra, MDGastroenterology Physician1013082726
- Jaquelyn Macaraeg, NPAdult Health Nurse Practitioner1326380643
- Anne Nguyen, M.D.Ophthalmology Physician1750588034
Verify Calvin Eng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G55239Check 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
6,485 Medicare Part D claims for 1,201 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Azelastine Hcl2,142 claims
- Latanoprost1,359 claims
- Prednisolone Acetate460 claims
- Timolol Maleate404 claims
- Ketorolac Tromethamine392 claims
- Brimonidine Tartrate334 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: $289.46
12 payments; by number, the most common kind was food and beverage; the largest payer was Oyster Point Pharma, 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
- Eng Medical AssociatesMonterey Park, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Calvin Eng among 2,899 ophthalmology physician records in California
Calvin Eng, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 91% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1984 · 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).
11 ophthalmology physician records list a practice address in Monterey Park
They are 11 of the 948 NPPES records with a practice address in Monterey Park, and 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Monterey Park → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Joseph Fan, M.D.Monterey Park, CA 917541508881715
- Jennifer Huang, M.D.Monterey Park, CA 917541316149735
- Cheraphat Lopansri, MDMonterey Park, CA 917541033225271
- Anne Nguyen, M.D.Monterey Park, CA 917541750588034
- Maria Pesheva, M.D.Monterey Park, CA 917541073557351
- Chau-Po Wei, M.D.Monterey Park, CA 917541871507483
- Tin-Cheu Wong, M.D.Monterey Park, CA 917541083825624
- Jeanine Yamanaka, MDMonterey Park, CA 917541972707677
Common questions
What is Calvin Eng, M.D.'s NPI number?
Calvin Eng, M.D.'s National Provider Identifier (NPI) is 1225039092, issued on Aug 3, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Calvin Eng, M.D. located?
The NPPES record lists a practice address at 850 S Atlantic Blvd, Monterey Park, CA, 91754. Phone: (626) 289-8260. Providers update this record themselves, so call before visiting.
How can I verify Calvin Eng, M.D.'s license?
NPPES lists California license number G55239, 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 Calvin Eng, M.D. prescribe under Medicare Part D?
In 2024, Calvin Eng, M.D. had 6,485 Medicare Part D claims for 1,201 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.