Doctor profile · Federal record

Dr. William O'Meara, M.D.

Radiation Oncology Physician (CMS: Radiation Oncology) · Radiation Oncology Physician · Radiation Oncology Physician · Radiation Oncology Physician · Lowell, MA

  • NPI 1598886897
  • Accepts Medicare
  • MIPS 75.0 / 100 · 2023
  • 29 yrs in practice
  • Licensed in 4 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
295 Varnum Ave
Lowell, MA 018542134
(978) 937-6274
fax (978) 934-8490
Additional location
1 Essex Center Dr
Peabody, MA 019602901
(978) 538-4120
fax (978) 538-4702
Mailing address
11 Starr Ave E
Andover, MA 018104286

Credentials & registration

NPPES · NUCC
NPI registered
April 2007 — 19 yrs on file
Profile last updated
March 28, 2018
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
2085R0001X — NUCC code
State licenses (4)
Massachusetts #249953 · Pennsylvania #MD441007 · New York #224644 · New Hampshire #15486
Medicaid (2)
MA #110090962A · NH #3083660

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598886897. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,463
Distinct HCPCS
10
Medicare allowed
$205,589
HCPCS Description Services Patients Avg allowed
77014 Ct guidance for insertion of radiation therapy fields 806 72 $48
G6002 Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy 323 52 $22
77427 Radiation treatment management, 5 treatment sessions 244 79 $207
77300 Calculation of radiation therapy dose 236 79 $36
77334 Design and construction of complex radiation treatment device 220 75 $65
99213 Established patient office or other outpatient visit, 20-29 minutes 163 122 $70
77263 Complex radiation therapy planning 77 71 $182
77295 3d radiation therapy planning 52 48 $244
G6017 Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment 52 14 $22
99205 New patient office or other outpatient visit, 60-74 minutes 50 50 $193

In context: peer comparison

Among 2 peers in this city , average services per provider: 119. This provider delivers 21× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
55
Patients
17
Total drug cost
$1,200
Drug Type Claims Patients Total cost
Tamsulosin Hcl Generic 42 17 $1,095
Oxycodone Hcl Generic 13 0 $105

Frequently asked questions

Auto-generated from federal data
What is Dr. William O'Meara's medical specialty?
Dr. William O'Meara practices Radiation Oncology Physician in Lowell, MA.
Where does Dr. William O'Meara practice?
Dr. William O'Meara practices at 295 Varnum Ave, Lowell, MA 018542134. Office phone: 9789376274.
What is Dr. William O'Meara's NPI?
Dr. William O'Meara's National Provider Identifier (NPI) is 1598886897, issued by NPPES.
Does Dr. William O'Meara accept Medicare assignment?
Yes. Dr. William O'Meara accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William O'Meara commonly perform?
Top Medicare-reported procedures in 2023: Ct guidance for insertion of radiation therapy fields (HCPCS 77014); Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy (HCPCS G6002); Radiation treatment management, 5 treatment sessions (HCPCS 77427). Source: CMS Medicare Physician & Other Practitioners file.