Doctor profile · Federal record
Dr. Diane Greer, MD
Geriatric Psychiatry Physician (CMS: Psychiatry) · Psychiatry Physician · Chelsea, MA
- NPI 1225019151
- Accepts Medicare
- 39 yrs in practice
- Female
- No sanctions
Practice & contact
- Primary practice
-
151 Everette Ave Chc, Chelsea Healthcare Center
Chelsea, MA 021501807
(617) 889-8515
fax (617) 889-8509 - Mailing address
-
Po Box 9142, Mass General Physician Organization
Charlestown, MA 021299142
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- September 11, 2025
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 2084P0805X — NUCC code
- State license (1)
- Massachusetts #71019
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225019151. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
338
Distinct HCPCS
5
Medicare allowed
$28,298
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99443 |
Telephone medical discussion with physician, 21-30 minutes | 125 | 39 | $103 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 99 | 44 | $70 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 65 | 25 | $70 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 31 | 18 | $104 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 18 | 12 | $38 |
In context: peer comparison
Among 1 peers in Chelsea Geriatric Psychiatry Physician, average services per provider: 67. This provider delivers 5.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,016
Patients
176
Total drug cost
$31,016
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clonazepam | Generic | 146 | 23 | $1,507 |
| Lorazepam | Generic | 130 | 24 | $1,302 |
| Trazodone Hcl | Generic | 124 | 25 | $1,946 |
| Fluoxetine Hcl | Generic | 76 | 14 | $8,357 |
| Gabapentin | Generic | 64 | 11 | $1,360 |
| Quetiapine Fumarate | Generic | 63 | 0 | $1,690 |
| Lamotrigine | Generic | 60 | 12 | $1,418 |
| Mirtazapine | Generic | 59 | 19 | $2,957 |
| Duloxetine Hcl | Generic | 53 | 11 | $1,539 |
| Sertraline Hcl | Generic | 53 | 12 | $1,108 |
Frequently asked questions
What is Dr. Diane Greer's medical specialty?
Dr. Diane Greer practices Geriatric Psychiatry Physician in Chelsea, MA.
Where does Dr. Diane Greer practice?
Dr. Diane Greer practices at 151 Everette Ave Chc, Chelsea, MA 021501807. Office phone: 6178898515.
What is Dr. Diane Greer's NPI?
Dr. Diane Greer's National Provider Identifier (NPI) is 1225019151, issued by NPPES.
Does Dr. Diane Greer accept Medicare assignment?
Yes. Dr. Diane Greer accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Diane Greer commonly perform?
Top Medicare-reported procedures in 2023: Telephone medical discussion with physician (HCPCS 99443); Established patient office or other outpatient visit (HCPCS 99213); Telephone medical discussion with physician (HCPCS 99442). Source: CMS Medicare Physician & Other Practitioners file.