DR. ISAAC ARTHUR LOOSE (M.D.) – Retina Specialist (Ophthalmology) Physician, NPI 1821075664

DR. ISAAC ARTHUR LOOSE (M.D.) is a healthcare provider. based in Austin, Texas. specializing in OPHTHALMOLOGY. They hold the professional credentials M.D.. They hold a License No. H4498 (TX). The NPI Number for DR. ISAAC ARTHUR LOOSE (M.D.) is 1821075664

Main info

Male
39 Years Of Experience
Accepts Medicare Assignment
Name
DR. ISAAC ARTHUR LOOSE (M.D.)
NPI
1821075664
Phone
(512) 327-7000
Address
5717 BALCONES DR
Enumeration Date
22 December 2005
Last Update Date
3 January 2024

Doctor Profile

Medical School Name
UNIVERSITY OF TEXAS SOUTHWESTERN MEDICAL SCHOOL AT DALLAS
Secondary Phone
5123277000
Graduation Year
1987 (39 years ago)
PAC ID
9133268956
Group Practice PAC ID
2466440458
Professional Enrollment ID
I20091207000719
Address ID
TX787314203AU5717XDRXX300
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness75
Years active:20State licenses:1Digital endpointsOther names

1,544 OPHTHALMOLOGY in TX

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Provider Addresses for DR. ISAAC ARTHUR LOOSE (M.D.)

  • 5717, Balcones Drive, Highland Hills, Austin, Travis County, Texas, 78731, United States

    AUSTIN, TX 787314203

    Phone: (512) 327-7000

    Fax: (512) 314-1660

    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 41 Open Payments records for all available years, with a total value of $1,469.

Total Amount is formed as General ($1,469) + Research ($0) + Ownership ($0) = $1,469.

Last reported payment date: 2024-11-14 • Largest payer in this snapshot: Regeneron Healthcare Solutions, Inc. ($233).

Total Amount

$1,469

General + Research + Ownership

Payments

41

Total payment records

General Amount

$1,469

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-11-14

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: 2009-12-07

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
I20091207000719IOphthalmologyTXTBD

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 system655284$0
92134Imaging of retina628251$0
67028Injection of drug into eye32790$0
J0178Injection, aflibercept, 1 mg30638$0
J9035Injection, bevacizumab, 10 mg15244$0
View full utilization report →

Insurance plans in this area (ZIP 78731)

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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: 2466440458View full group profile
NameSpecialtyState
O P H T H A L M O L O G YTX
-TX
O P H T H A L M O L O G YTX
O P T O M E T R YTX
O P H T H A L M O L O G YTX
O P H T H A L M O L O G YTX
O P H T H A L M O L O G YTX
O P H T H A L M O L O G YTX
O P T O M E T R YNY
O P H T H A L M O L O G YLA

Reviews

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Frequently asked questions

How do payers reference DR. ISAAC ARTHUR LOOSE (M.D.)?
For DR. ISAAC ARTHUR LOOSE (M.D.), use NPI 1821075664 as the unique 10-digit identifier.
Would DR. ISAAC ARTHUR LOOSE (M.D.) appear as active to a payer?
You can treat DR. ISAAC ARTHUR LOOSE (M.D.) as active for directory purposes; confirm clinical privileges separately.
What expertise is attributed to DR. ISAAC ARTHUR LOOSE (M.D.)?
DR. ISAAC ARTHUR LOOSE (M.D.)'s specialty line reads Retina Specialist (Ophthalmology) Physician. Clinical services aligned with this taxonomy classification.
What locale is associated with DR. ISAAC ARTHUR LOOSE (M.D.)?
Directory geography for DR. ISAAC ARTHUR LOOSE (M.D.) centers on Austin, Texas.
Does DR. ISAAC ARTHUR LOOSE (M.D.) accept insurance?
Insurance participation is not part of the core NPI extract — call the plan or office to confirm.

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