CALVIN ENG (M.D.) – Ophthalmology Physician, NPI 1225039092

CALVIN ENG (M.D.) is a healthcare provider. based in Monterey park, California. specializing in OPHTHALMOLOGY. They hold the professional credentials M.D.. They hold a License No. G55239 (CA). The NPI Number for CALVIN ENG (M.D.) is 1225039092

Main info

Male
42 Years Of Experience
Accepts Medicare Assignment
Name
CALVIN ENG (M.D.)
NPI
1225039092
Phone
(626) 289-8260
Address
850 S ATLANTIC BLVD
Enumeration Date
3 August 2005
Last Update Date
8 July 2007

Doctor Profile

Medical School Name
UNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Secondary Phone
6262898260
Graduation Year
1984 (42 years ago)
PAC ID
5294722740
Group Practice PAC ID
2062604341
Professional Enrollment ID
I20051104000724
Address ID
CA917546710MO850XXBLVD401
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

2,665 OPHTHALMOLOGY in CA

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Provider Addresses for CALVIN ENG (M.D.)

  • 850, S Atlantic Boulevard, Monterey Park, Los Angeles County, California, 91754, United States

    SUITE 301

    MONTEREY PARK, CA 917544730

    Phone: (626) 289-8260

    Fax: (626) 289-4242

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 14 Open Payments records for all available years, with a total value of $333.

Total Amount is formed as General ($333) + Research ($0) + Ownership ($0) = $333.

Last reported payment date: 2024-12-31 • Largest payer in this snapshot: Oyster Point Pharma, Inc. ($91).

Total Amount

$333

General + Research + Ownership

Payments

14

Total payment records

General Amount

$333

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-31

Latest reported date

View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-11-04

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20051104000724IOphthalmologyCATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
92014Established patient complete exam of visual system590535$0
92012Established patient problem focused exam of visual system383247$0
92004New patient complete exam of visual system315315$0
66984Removal of cataract with insertion of prosthetic lens10681$0
92136Measurement of corneal curvature and depth of eye6152$0
View full utilization report →

Insurance plans in this area (ZIP 91754)

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Provider's Procedures

CALVIN ENG (M.D.) performs procedures in OPHTHALMOLOGY. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
OPHTHALMOLOGYCA92012Eye and medical examination for diagnosis and treatment, established patient521290

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 2062604341View full group profile
NameSpecialtyState
O P H T H A L M O L O G YCA

Reviews

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Frequently asked questions

Is CALVIN ENG (M.D.) listed with a National Provider Identifier?
Yes — CALVIN ENG (M.D.) has NPI 1225039092 on file in the registry.
Is CALVIN ENG (M.D.) still an active registrant?
CALVIN ENG (M.D.) carries an active NPI according to the public dataset.
What expertise is attributed to CALVIN ENG (M.D.)?
CALVIN ENG (M.D.)'s specialty line reads Ophthalmology Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with CALVIN ENG (M.D.)?
Directory geography for CALVIN ENG (M.D.) centers on Monterey Park, California.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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