Doctor profile · Federal record

Dr. Marie Weeks, MD

Radiation Oncology Physician (CMS: Radiation Oncology) · Littleton, CO

  • NPI 1568434207
  • Accepts Medicare
  • MIPS 88.2 / 100 · 2023
  • 26 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
22 W Dry Creek Cir
Littleton, CO 801204413
(303) 730-4700
fax (303) 930-8053
Mailing address
7951 E Maplewood Ave Ste 350
Greenwood Village, CO 801114758

Credentials & registration

NPPES · NUCC
NPI registered
February 2006 — 20 yrs on file
Profile last updated
February 19, 2025
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
Colorado #DR.0044401
Medicaid
CO #47687762

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1568434207. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
8,964
Distinct HCPCS
10
Medicare allowed
$446,355
HCPCS Description Services Patients Avg allowed
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 7,205 81 $0
77014 Ct guidance for insertion of radiation therapy fields 213 15 $114
J1100 Injection, dexamethasone sodium phosphate, 1 mg 210 11 $0
G6015 Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session 192 14 $375
G6013 Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev 168 15 $247
78815 Nuclear medicine study from skull base to mid-thigh with ct scan 127 109 $1,539
A9552 Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries 127 107 $93
77427 Radiation treatment management, 5 treatment sessions 98 33 $192
77300 Calculation of radiation therapy dose 91 27 $63
77336 Continuing radiation therapy consultation per week 90 29 $90

In context: peer comparison

Among 2 peers in Littleton Radiation Oncology Physician, average services per provider: 601. This provider delivers 15× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$531
Transactions
23
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Novartis Pharmaceuticals Corporation 4 $87.78
Eisai INC. 3 $66.93
Myriad Genetic Laboratories, INC. 2 $47.65
Daiichi Sankyo INC. 2 $46.95
Bayer Healthcare Pharmaceuticals INC. 2 $46.16
TerSera Therapeutics LLC 1 $30.70
Abbvie INC. 1 $30.23
Taiho Oncology, INC. 1 $26.66
Astellas Pharma US INC 1 $25.00
Puma Biotechnology, INC. 1 $24.80
Alexion Pharmaceuticals, INC. 1 $21.40
Merck Sharp & Dohme LLC 1 $20.20
Sobi, INC 1 $20.15
Genentech USA, INC. 1 $19.84
Celgene Corporation 1 $16.92

By nature of payment

Food and Beverage
$531

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
14
Patients
0
Total drug cost
$145
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 14 0 $145

Frequently asked questions

Auto-generated from federal data
What is Dr. Marie Weeks's medical specialty?
Dr. Marie Weeks practices Radiation Oncology Physician in Littleton, CO.
Where does Dr. Marie Weeks practice?
Dr. Marie Weeks practices at 22 W Dry Creek Cir, Littleton, CO 801204413. Office phone: 3037304700.
What is Dr. Marie Weeks's NPI?
Dr. Marie Weeks's National Provider Identifier (NPI) is 1568434207, issued by NPPES.
Does Dr. Marie Weeks accept Medicare assignment?
Yes. Dr. Marie Weeks accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Marie Weeks commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Injection, dexamethasone sodium phosphate, 1 mg (HCPCS J1100). Source: CMS Medicare Physician & Other Practitioners file.