DR. BRIAN TIMOTHY O'HOLLAREN (MD) – Urology Physician, NPI 1629030523

DR. BRIAN TIMOTHY O'HOLLAREN (MD) is a healthcare provider. based in Bend, Oregon. specializing in Urology Physician. They hold the professional credentials MD. They hold a License No. MD15929 (OR). The NPI Number for DR. BRIAN TIMOTHY O'HOLLAREN (MD) is 1629030523

Main info

Male
Name
DR. BRIAN TIMOTHY O'HOLLAREN (MD)
NPI
1629030523
Phone
(541) 382-6447
Address
2090 NE WYATT CT
Enumeration Date
5 April 2006
Last Update Date
9 January 2017
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

Provider Addresses for DR. BRIAN TIMOTHY O'HOLLAREN (MD)

  • 2090 NE WYATT CT

    SUITE 101

    BEND, OR 977017687

    Phone: (541) 382-6447

    Fax: (541) 330-7413

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

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: 2005-08-09

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
I20050809000380IUrologyORTBD

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 97701)

Loading plans...

Provider's Procedures

DR. BRIAN TIMOTHY O'HOLLAREN (MD) performs procedures in Urology Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
UROLOGYOR51798Ultrasound measurement of bladder capacity after voiding266210
UROLOGYOR76872Ultrasound of rectum3635
UROLOGYOR76942Ultrasonic guidance imaging supervision and interpretation for insertion of needle3635

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

How do payers reference DR. BRIAN TIMOTHY O'HOLLAREN (MD)?
For DR. BRIAN TIMOTHY O'HOLLAREN (MD), use NPI 1629030523 as the unique 10-digit identifier.
Is DR. BRIAN TIMOTHY O'HOLLAREN (MD) still an active registrant?
DR. BRIAN TIMOTHY O'HOLLAREN (MD) carries an active NPI according to the public dataset.
What kind of doctor is DR. BRIAN TIMOTHY O'HOLLAREN (MD)?
DR. BRIAN TIMOTHY O'HOLLAREN (MD) is associated with Urology Physician in the directory — Clinical services aligned with this taxonomy classification.
What practice footprint exists for DR. BRIAN TIMOTHY O'HOLLAREN (MD)?
Travel planning: use Bend, Oregon as the reference point for DR. BRIAN TIMOTHY O'HOLLAREN (MD), then confirm.
What does 2 location(s) imply?
2 practice locations appear in the available data.

Similar Providers

ROGUE VALLEY UROLOGY, PC

Urology Physician
431 NE REVERE AVE STE 200
NPI: 1467421404
2090 NE WYATT CT
NPI: 1962464271
2090 NE WYATT CT
NPI: 1316909773

DR. JACK ALAN BREWER (MD)

Urology Physician
2090 NE WYATT CT
NPI: 1518929439
2090 NE WYATT CT
NPI: 1508815754

WILLIAM J CORRIGAN (PA-C)

Urology Physician
2090 NE WYATT CT
NPI: 1124078738

WILLIE III UNDERWOOD (MD)

Urology Physician
ELM AND CARLTON ST
NPI: 1831136829
PO BOX 670
NPI: 1881635779