Doctor profile · Federal record

Dr. Iain Macewan, M.D.

Radiation Oncology Physician (CMS: Radiation Oncology) · San Diego, CA

  • NPI 1326300401
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 14 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
9730 Summers Ridge RD
San Diego, CA 921213101
(858) 822-4048
Mailing address
Po Box 232410
San Diego, CA 921932410

Credentials & registration

NPPES · NUCC
NPI registered
June 2012 — 14 yrs on file
Profile last updated
July 25, 2022
Year of graduation
2012 — 14 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State license (1)
California #A129079

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1326300401. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
4,871
Distinct HCPCS
10
Medicare allowed
$2,725,429
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 1,194 222 $136
77525 Complex proton beam radiation treatment 1,083 188 $1,290
77523 Intermediate proton beam radiation treatment 606 104 $1,147
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 492 100 $85
A9579 Injection, gadolinium-based magnetic resonance contrast agent, not otherwise specified (nos), per ml 267 13 $2
77336 Continuing radiation therapy consultation per week 256 148 $99
77300 Calculation of radiation therapy dose 240 61 $73
77427 Radiation treatment management, 5 treatment sessions 239 85 $202
77334 Design and construction of complex radiation treatment device 98 68 $140
77301 High precision radiation therapy planning 69 64 $2,103

In context: peer comparison

Among 14 peers in this city , average services per provider: 137. This provider delivers 36× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$44
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
PROGENICS PHARMACEUTICALS, INC. 1 $22.32
Teleflex LLC 1 $22.07

By nature of payment

Food and Beverage
$44

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
20
Patients
0
Total drug cost
$526
Drug Type Claims Patients Total cost
Mometasone Furoate Generic 20 0 $526

Frequently asked questions

Auto-generated from federal data
What is Dr. Iain Macewan's medical specialty?
Dr. Iain Macewan practices Radiation Oncology Physician in San Diego, CA.
Where does Dr. Iain Macewan practice?
Dr. Iain Macewan practices at 9730 Summers Ridge RD, San Diego, CA 921213101. Office phone: 8588224048.
What is Dr. Iain Macewan's NPI?
Dr. Iain Macewan's National Provider Identifier (NPI) is 1326300401, issued by NPPES.
Does Dr. Iain Macewan accept Medicare assignment?
Yes. Dr. Iain Macewan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Iain Macewan commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Complex proton beam radiation treatment (HCPCS 77525); Intermediate proton beam radiation treatment (HCPCS 77523). Source: CMS Medicare Physician & Other Practitioners file.