Doctor profile · Federal record

Dr. Elizabeth Tapen, MD

Radiation Oncology Physician (CMS: Radiation Oncology) · Big Sky, MT

  • NPI 1134108525
  • Accepts Medicare
  • 36 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2091 Little Coyote RD Ste 161029
Big Sky, MT 597167979
(845) 797-8700
Mailing address
Po Box 161029
Big Sky, MT 597161029

Credentials & registration

NPPES · NUCC
NPI registered
January 2006 — 20 yrs on file
Profile last updated
December 17, 2021
Year of graduation
1990 — 36 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
New York #2323381
Medicaid (2)
NY #2622228 · NY #02622228

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1134108525. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
473
Distinct HCPCS
8
Medicare allowed
$42,548
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 263 42 $49
77300 Calculation of radiation therapy dose 61 24 $36
77427 Radiation treatment management, 5 treatment sessions 49 27 $211
77334 Design and construction of complex radiation treatment device 47 20 $67
77338 Design and construction of radiation treatment device for high precision radiation therapy 16 15 $249
77301 High precision radiation therapy planning 13 13 $464
77263 Complex radiation therapy planning 12 12 $184
99204 New patient office or other outpatient visit, 45-59 minutes 12 12 $143

In context: peer comparison

Among 1 peers in this city , average services per provider: 59. This provider delivers 8.0× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$52
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Janssen Biotech, Inc. 1 $28.25
Genentech USA, Inc. 1 $24.03

By nature of payment

Food and Beverage
$52

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
50
Patients
19
Total drug cost
$1,136
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 50 19 $1,136

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Elizabeth Tapen's medical specialty?
Dr. Elizabeth Tapen practices Radiation Oncology Physician in Big Sky, MT.
Where does Dr. Elizabeth Tapen practice?
Dr. Elizabeth Tapen practices at 2091 Little Coyote RD Ste 161029, Big Sky, MT 597167979. Office phone: 8457978700.
What is Dr. Elizabeth Tapen's NPI?
Dr. Elizabeth Tapen's National Provider Identifier (NPI) is 1134108525, issued by NPPES.
Does Dr. Elizabeth Tapen accept Medicare assignment?
Yes. Dr. Elizabeth Tapen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Elizabeth Tapen commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Calculation of radiation therapy dose (HCPCS 77300); Radiation treatment management, 5 treatment sessions (HCPCS 77427). Source: CMS Medicare Physician & Other Practitioners file.