Doctor profile · Federal record

Dr. Timothy Holleran

Student in an Organized Health Care Education/Training Program (CMS: Colorectal Surgery (Proctology)) · Washington, DC

  • NPI 1396240842
  • Accepts Medicare
  • 8 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
3800 Reservoir RD Nw
Washington, DC 200072113
(202) 444-5022
fax (202) 444-7987

Credentials & registration

NPPES · NUCC
NPI registered
March 2018 — 8 yrs on file
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
390200000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1396240842. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$154
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Medtronic, INC. 2 $137.49
Takeda Pharmaceuticals U.S.A., INC. 1 $16.69

By nature of payment

Food and Beverage
$154

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
16
Patients
15
Total drug cost
$47
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 16 15 $47

Frequently asked questions

Auto-generated from federal data
What is Dr. Timothy Holleran's medical specialty?
Dr. Timothy Holleran practices Student in an Organized Health Care Education/Training Program in Washington, DC.
Where does Dr. Timothy Holleran practice?
Dr. Timothy Holleran practices at 3800 Reservoir RD Nw, Washington, DC 200072113. Office phone: 2024445022.
What is Dr. Timothy Holleran's NPI?
Dr. Timothy Holleran's National Provider Identifier (NPI) is 1396240842, issued by NPPES.
Does Dr. Timothy Holleran accept Medicare assignment?
Yes. Dr. Timothy Holleran accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.