Doctor profile · Federal record
Dr. Shilpa Diwan, M.D, M.P.H
Psychiatry Physician (CMS: Psychiatry) · Geriatric Psychiatry Physician · Irvine, CA
- NPI 1942457999
- Accepts Medicare
- 26 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
19772 Macarthur Blvd Ste 220
Irvine, CA 926122405
(949) 304-6727
fax (949) 312-5638 - Mailing address
-
6 Venture Ste 350
Irvine, CA 926187350
Credentials & registration
- NPI registered
- August 2008 — 18 yrs on file
- Profile last updated
- June 4, 2020
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 2084P0800X — NUCC code
- State license (1)
- California #C134348
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942457999. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,314
Distinct HCPCS
7
Medicare allowed
$145,123
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 655 | 146 | $139 | |
90833 |
Psychotherapy with evaluation and management visit, 30 minutes | 452 | 131 | $73 | |
90785 |
Psychiatric services complicated by communication factor | 82 | 34 | $16 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 48 | 48 | $237 | |
90836 |
Psychotherapy with evaluation and management visit, 45 minutes | 42 | 25 | $93 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 18 | 11 | $95 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $180 |
In context: peer comparison
Among 5 peers in Irvine Psychiatry Physician, average services per provider: 191. This provider delivers 6.9× the peer median.Open Payments
Industry payments received
All-time total
$443
Transactions
21
Manufacturers
8
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 8 | $176.04 | |
| Tris Pharma INC | 5 | $95.04 | |
| Otsuka America Pharmaceutical, INC. | 2 | $43.40 | |
| Takeda Pharmaceuticals U.S.A., INC. | 2 | $29.72 | |
| Corium, LLC | 1 | $27.55 | |
| Axsome Therapeutics, INC. | 1 | $25.74 | |
| Biogen, INC. | 1 | $25.28 | |
| Ironshore Pharmaceuticals INC. | 1 | $20.26 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,330
Patients
317
Total drug cost
$20,491
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Sertraline Hcl | Generic | 228 | 55 | $2,040 |
| Trazodone Hcl | Generic | 136 | 39 | $1,381 |
| Escitalopram Oxalate | Generic | 125 | 26 | $1,492 |
| Gabapentin | Generic | 97 | 21 | $1,012 |
| Mirtazapine | Generic | 96 | 21 | $1,726 |
| Clonazepam | Generic | 87 | 14 | $667 |
| Olanzapine | Generic | 81 | 16 | $2,549 |
| Bupropion Xl (Bupropion Hcl) | Brand | 79 | 24 | $2,473 |
| Fluoxetine Hcl | Generic | 76 | 17 | $1,056 |
| Lamotrigine | Generic | 72 | 17 | $731 |
Frequently asked questions
What is Dr. Shilpa Diwan's medical specialty?
Dr. Shilpa Diwan practices Psychiatry Physician in Irvine, CA.
Where does Dr. Shilpa Diwan practice?
Dr. Shilpa Diwan practices at 19772 Macarthur Blvd Ste 220, Irvine, CA 926122405. Office phone: 9493046727.
What is Dr. Shilpa Diwan's NPI?
Dr. Shilpa Diwan's National Provider Identifier (NPI) is 1942457999, issued by NPPES.
Does Dr. Shilpa Diwan accept Medicare assignment?
Yes. Dr. Shilpa Diwan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Shilpa Diwan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Psychotherapy with evaluation and management visit (HCPCS 90833); Psychiatric services complicated by communication factor (HCPCS 90785). Source: CMS Medicare Physician & Other Practitioners file.