ANDREW CLARK (MD, PHD) – Ophthalmology Physician, NPI 1447745336

ANDREW CLARK (MD, PHD) is a healthcare provider. based in Pasadena, California. specializing in OPHTHALMOLOGY. They hold the professional credentials MD, PHD. They hold a License No. A163607 (CA). The NPI Number for ANDREW CLARK (MD, PHD) is 1447745336

Main info

Male
8 Years Of Experience
Accepts Medicare Assignment
Name
ANDREW CLARK (MD, PHD)
NPI
1447745336
Phone
(626) 421-7733
Address
100 W California Blvd
Enumeration Date
25 June 2018
Last Update Date
15 November 2022

Doctor Profile

Medical School Name
UNIVERSITY OF SOUTHERN CALIFORNIA KECK SCHOOL OF MEDICINE
Secondary Phone
8059631648
Graduation Year
2018 (8 years ago)
PAC ID
0840686101
Group Practice PAC ID
6608860135
Professional Enrollment ID
I20220614003181
Address ID
CA931034211SA525XXSTXX401

Contacts

Secure Messaging
andrew.clark@direct.usc.edu
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience43
Completeness85
Years active:7State licenses:1Other namesUpdated within 12 months

2,665 OPHTHALMOLOGY in CA

Provider Addresses for ANDREW CLARK (MD, PHD)

  • 100 W California Blvd

    Pasadena, CA 911053010

    Phone: (626) 421-7733

    Type: Location

  • San Pablo Street, Lincoln Heights, Los Angeles, Los Angeles County, California, 90031, United States

    LOS ANGELES, CA 900335331

    Phone:

    Type: Mailing

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 32 Open Payments records for all available years, with a total value of $1,599.

Total Amount is formed as General ($1,599) + Research ($0) + Ownership ($0) = $1,599.

Last reported payment date: 2024-12-17 • Largest payer in this snapshot: Alcon Vision LLC ($425).

Total Amount

$1,599

General + Research + Ownership

Payments

32

Total payment records

General Amount

$1,599

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-12-17

Latest reported date

Top Companies

Largest payers in this snapshot

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: 2022-06-14

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
I20220614003181IOphthalmologyCATBD

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.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 91105)

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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: 6608860135View full group profile
NameSpecialtyState
O P H T H A L M O L O G YCA
O P H T H A L M O L O G YCA
-CA
O P H T H A L M O L O G YCA
O P H T H A L M O L O G YCA
O P H T H A L M O L O G YMO
O P H T H A L M O L O G YCA
O P H T H A L M O L O G YCA
O P H T H A L M O L O G YCA
O P H T H A L M O L O G YMA

Reviews

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Frequently asked questions

What is the 10-digit NPI for ANDREW CLARK (MD, PHD)?
ANDREW CLARK (MD, PHD) — NPI 1447745336 — is the standard way to identify this listing.
Does CMS list ANDREW CLARK (MD, PHD) as active?
Yes — ANDREW CLARK (MD, PHD) is active in the NPI listing used on this page.
What is ANDREW CLARK (MD, PHD) best known for clinically?
Directory data describes ANDREW CLARK (MD, PHD) with Ophthalmology Physician. Clinical services aligned with this taxonomy classification.
Where is ANDREW CLARK (MD, PHD) based?
ANDREW CLARK (MD, PHD) is tied to Pasadena, California in the data we show; additional addresses may exist on the full record.
Why does ANDREW CLARK (MD, PHD) have multiple addresses?
3 practice locations appear in the available data. Multiple addresses are common for hospital privileges, telehealth, or multi-site groups.

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