Doctor profile · Federal record

Dr. Timothy Kerwin, MD

Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Naples, FL

  • NPI 1346309085
  • Accepts Medicare
  • MIPS 99.9 / 100 · 2023
  • 23 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
15465 Tamiami Trl N
Naples, FL 341106216
(239) 429-0200
fax (239) 421-8209
Additional location
8625 Collier Blvd Unit 102
Naples, FL 341143636
(239) 429-0100
Additional location
955 10Th Ave N
Naples, FL 341025452
(239) 325-1440
fax (239) 325-2283
Mailing address
1205 Pocantico Ln
Naples, FL 341100923

Credentials & registration

NPPES · NUCC
NPI registered
December 2006 — 20 yrs on file
Profile last updated
April 22, 2022
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State licenses (2)
Florida #ME101714 · California #A91189
Medicaid
FL #000710000

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1346309085. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
18,449
Distinct HCPCS
10
Medicare allowed
$4,310,682
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 4,978 470 $122
G6015 Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session 4,825 434 $360
G6012 Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev 2,087 246 $235
77427 Radiation treatment management, 5 treatment sessions 1,514 326 $197
77300 Calculation of radiation therapy dose 1,080 241 $67
77336 Continuing radiation therapy consultation per week 1,011 351 $88
77334 Design and construction of complex radiation treatment device 539 289 $125
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 513 60 $75
77263 Complex radiation therapy planning 330 303 $172
77338 Design and construction of radiation treatment device for high precision radiation therapy 225 211 $469

In context: peer comparison

Among 6 peers in Naples Radiation Oncology Physician, average services per provider: 429. This provider delivers 43× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$520
Transactions
19
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Myriad Genetic Laboratories, INC. 6 $138.87
Boston Scientific Corporation 2 $72.47
Intuitive Surgical, INC. 1 $70.90
Novocure INC. 2 $51.96
Blue Earth Diagnostics Limited 2 $44.99
Sumitomo Pharma America, INC. 2 $38.64
Pfizer INC. 1 $30.24
Merck Sharp & Dohme LLC 1 $28.29
Novartis Pharmaceuticals Corporation 1 $24.15
Astellas Pharma US INC 1 $19.61

By nature of payment

Food and Beverage
$520

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
214
Patients
88
Total drug cost
$2,989
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 153 69 $2,047
Methylprednisolone Generic 24 19 $242
Prednisone Generic 14 0 $44
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 12 0 $524
Ssd (Silver Sulfadiazine) Brand 11 0 $133

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Timothy Kerwin's medical specialty?
Dr. Timothy Kerwin practices Radiation Oncology Physician in Naples, FL.
Where does Dr. Timothy Kerwin practice?
Dr. Timothy Kerwin practices at 15465 Tamiami Trl N, Naples, FL 341106216. Office phone: 2394290200.
What is Dr. Timothy Kerwin's NPI?
Dr. Timothy Kerwin's National Provider Identifier (NPI) is 1346309085, issued by NPPES.
Does Dr. Timothy Kerwin accept Medicare assignment?
Yes. Dr. Timothy Kerwin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Timothy Kerwin commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc (HCPCS G6015); Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev (HCPCS G6012). Source: CMS Medicare Physician & Other Practitioners file.