Doctor profile · Federal record
Dr. Daniel O'Leary, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Leominster, MA
- NPI 1447346531
- Accepts Medicare
- MIPS 89.0 / 100 · 2023
- 41 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
50 Memorial Drive, Suite 205
Leominster, MA 01453
(978) 534-4241
fax (978) 534-3705
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- February 28, 2013
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Massachusetts #57335
- Medicaid
- MA #3031683
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447346531. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,875
Distinct HCPCS
10
Medicare allowed
$342,297
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,017 | 527 | $132 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 436 | 436 | $134 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 416 | 292 | $92 | |
90662 |
Influenza vaccine split virus, preservative free | 232 | 228 | $72 | |
G0180 |
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 125 | 70 | $54 | |
99497 |
Advance care planning, first 30 minutes | 119 | 117 | $85 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 117 | 112 | $185 | |
99496 |
Transitional care management services for problem of high complexity | 95 | 72 | $272 | |
G0008 |
Administration of influenza virus vaccine | 54 | 54 | $31 | |
69210 |
Removal of impacted ear wax | 53 | 41 | $49 |
In context: peer comparison
Among 10 peers in Leominster Internal Medicine Physician, average services per provider: 164. This provider delivers 18× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
7,034
Patients
1,993
Total drug cost
$409,768
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 802 | 234 | $23,192 |
| Levothyroxine Sodium | Generic | 708 | 193 | $11,917 |
| Lisinopril | Generic | 670 | 197 | $8,480 |
| Losartan Potassium | Generic | 670 | 191 | $15,934 |
| Amlodipine Besylate | Generic | 668 | 201 | $8,010 |
| Omeprazole | Generic | 515 | 150 | $13,638 |
| Simvastatin | Generic | 498 | 142 | $8,972 |
| Hydrochlorothiazide | Generic | 398 | 121 | $1,299 |
| Gabapentin | Generic | 378 | 96 | $7,513 |
| Eliquis (Apixaban) | Brand | 339 | 60 | $258,656 |
Hospital affiliations
Frequently asked questions
What is Dr. Daniel O'Leary's medical specialty?
Dr. Daniel O'Leary practices Internal Medicine Physician in Leominster, MA.
Where does Dr. Daniel O'Leary practice?
Dr. Daniel O'Leary practices at 50 Memorial Drive, Leominster, MA 01453. Office phone: 9785344241.
What is Dr. Daniel O'Leary's NPI?
Dr. Daniel O'Leary's National Provider Identifier (NPI) is 1447346531, issued by NPPES.
Does Dr. Daniel O'Leary accept Medicare assignment?
Yes. Dr. Daniel O'Leary accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Daniel O'Leary commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.