Doctor profile · Federal record
Dr. Lazar Greenfield, M.D., PH.D.
Neurology Physician (CMS: Neurology) · Neurology Physician · Clinical Neurophysiology Physician · Clinical Neurophysiology Physician · Farmington, CT
- NPI 1841286994
- Accepts Medicare
- MIPS 25.4 / 100 · 2023
- 37 yrs in practice
- Licensed in 3 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
Uconn Medical Group, 263 Farmington Ave
Farmington, CT 060300001
(860) 679-4888
fax (860) 679-0131
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- September 29, 2022
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State licenses (3)
- Connecticut #055487 · Ohio #35076214 · Arkansas #E-6501
- Medicaid
- OH #2132034
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1841286994. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
147
Distinct HCPCS
7
Medicare allowed
$18,403
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 45 | 38 | $136 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 31 | 29 | $97 | |
95812 |
Measurement of brain wave activity (eeg), 41-60 minutes | 22 | 22 | $59 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 14 | 14 | $182 | |
95819 |
Measurement of brain wave activity (eeg), awake and asleep | 12 | 12 | $59 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 12 | 12 | $178 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 11 | 11 | $234 |
In context: peer comparison
Among 10 peers in this city , average services per provider: 191. This provider delivers 0.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
601
Patients
48
Total drug cost
$50,868
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levetiracetam | Generic | 113 | 26 | $8,720 |
| Divalproex Sodium | Generic | 67 | 0 | $8,313 |
| Lamotrigine | Generic | 56 | 11 | $1,865 |
| Gabapentin | Generic | 46 | 11 | $1,817 |
| Carbamazepine | Generic | 43 | 0 | $4,575 |
| Clobazam | Generic | 40 | 0 | $3,383 |
| Topiramate | Generic | 38 | 0 | $2,353 |
| Nortriptyline Hcl | Generic | 34 | 0 | $1,071 |
| Lacosamide | Generic | 33 | 0 | $9,196 |
| Oxcarbazepine | Generic | 33 | 0 | $3,385 |
Frequently asked questions
What is Dr. Lazar Greenfield's medical specialty?
Dr. Lazar Greenfield practices Neurology Physician in Farmington, CT.
Where does Dr. Lazar Greenfield practice?
Dr. Lazar Greenfield practices at Uconn Medical Group, Farmington, CT 060300001. Office phone: 8606794888.
What is Dr. Lazar Greenfield's NPI?
Dr. Lazar Greenfield's National Provider Identifier (NPI) is 1841286994, issued by NPPES.
Does Dr. Lazar Greenfield accept Medicare assignment?
Yes. Dr. Lazar Greenfield accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lazar Greenfield commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Measurement of brain wave activity (eeg) (HCPCS 95812). Source: CMS Medicare Physician & Other Practitioners file.