Doctor profile · Federal record
Dr. Sergey Istomin, CRNP, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner · Bethesda, MD
- NPI 1023384963
- 14 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
6040 Southport Dr
Bethesda, MD 208141848
(301) 493-4200
Credentials & registration
- NPI registered
- March 2012 — 14 yrs on file
- Profile last updated
- December 3, 2013
- Specialty taxonomy
- 363LP0808X — NUCC code
- State license (1)
- Maryland #R208690
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1023384963. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,089
Distinct HCPCS
8
Medicare allowed
$109,311
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
90834 |
Psychotherapy, 45 minutes | 261 | 75 | $92 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 236 | 58 | $121 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 228 | 64 | $122 | |
90832 |
Psychotherapy, 30 minutes | 157 | 59 | $69 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 69 | 43 | $87 | |
96372 |
Injection of drug or substance under skin or into muscle | 63 | 18 | $14 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 62 | 29 | $170 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 13 | 12 | $55 |
In context: peer comparison
Among 3 peers in Bethesda Psychiatric/Mental Health Nurse Practitioner, average services per provider: 104. This provider delivers 10× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,708
Patients
140
Total drug cost
$234,934
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Clozapine | Generic | 273 | 18 | $14,336 |
| Olanzapine | Generic | 216 | 23 | $13,021 |
| Quetiapine Fumarate | Generic | 126 | 17 | $2,539 |
| Divalproex Sodium | Generic | 117 | 0 | $2,742 |
| Divalproex Sodium ER (Divalproex Sodium) | Brand | 115 | 12 | $8,392 |
| Gabapentin | Generic | 115 | 11 | $1,543 |
| Benztropine Mesylate | Generic | 99 | 12 | $1,430 |
| Fluoxetine Hcl | Generic | 98 | 11 | $1,286 |
| Amantadine (Amantadine Hcl) | Brand | 92 | 12 | $5,451 |
| Lithium Carbonate | Generic | 92 | 0 | $859 |
Frequently asked questions
What is Dr. Sergey Istomin's medical specialty?
Dr. Sergey Istomin practices Psychiatric/Mental Health Nurse Practitioner in Bethesda, MD.
Where does Dr. Sergey Istomin practice?
Dr. Sergey Istomin practices at 6040 Southport Dr, Bethesda, MD 208141848. Office phone: 3014934200.
What is Dr. Sergey Istomin's NPI?
Dr. Sergey Istomin's National Provider Identifier (NPI) is 1023384963, issued by NPPES.
What procedures does Dr. Sergey Istomin commonly perform?
Top Medicare-reported procedures in 2023: Psychotherapy (HCPCS 90834); Telephone medical discussion with physician (HCPCS 99443); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.