Doctor profile · Federal record
Dr. David Johnson, RN/NP
Psychiatric/Mental Health Nurse Practitioner (CMS: Nurse Practitioner) · Cambridge, MA
- NPI 1821373671
- Accepts Medicare
- 15 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1611 Cambridge St, Harvard Vanguard Medical Associates, Bh Dept.
Cambridge, MA 021384302
(617) 661-5500
Credentials & registration
- NPI registered
- October 2011 — 15 yrs on file
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 363LP0808X — NUCC code
- State license (1)
- Massachusetts #RN2263400
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821373671. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
194
Distinct HCPCS
3
Medicare allowed
$18,890
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 132 | 54 | $116 | |
99441 |
Telephone medical discussion with physician, 5-10 minutes | 37 | 24 | $53 | |
90833 |
Psychotherapy with evaluation and management visit, 30 minutes | 25 | 16 | $63 |
In context: peer comparison
Among 2 peers in Cambridge Psychiatric/Mental Health Nurse Practitioner, average services per provider: 56. This provider delivers 3.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,149
Patients
165
Total drug cost
$27,200
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clonazepam | Generic | 133 | 22 | $1,218 |
| Lorazepam | Generic | 115 | 22 | $1,217 |
| Bupropion Xl (Bupropion Hcl) | Brand | 100 | 21 | $4,888 |
| Trazodone Hcl | Generic | 98 | 21 | $2,392 |
| Sertraline Hcl | Generic | 92 | 25 | $1,420 |
| Quetiapine Fumarate | Generic | 88 | 16 | $2,461 |
| Lamotrigine | Generic | 74 | 13 | $1,614 |
| Gabapentin | Generic | 71 | 13 | $1,762 |
| Venlafaxine Hcl ER (Venlafaxine Hcl) | Brand | 71 | 0 | $1,162 |
| Aripiprazole | Generic | 60 | 0 | $4,343 |
Frequently asked questions
What is Dr. David Johnson's medical specialty?
Dr. David Johnson practices Psychiatric/Mental Health Nurse Practitioner in Cambridge, MA.
Where does Dr. David Johnson practice?
Dr. David Johnson practices at 1611 Cambridge St, Cambridge, MA 021384302. Office phone: 6176615500.
What is Dr. David Johnson's NPI?
Dr. David Johnson's National Provider Identifier (NPI) is 1821373671, issued by NPPES.
Does Dr. David Johnson accept Medicare assignment?
Yes. Dr. David Johnson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Johnson commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99441); Psychotherapy with evaluation and management visit (HCPCS 90833). Source: CMS Medicare Physician & Other Practitioners file.