Doctor profile · Federal record
Dr. Siamak Heydarian, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Woodbridge, VA
- NPI 1225072077
- 39 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
2200 Opitz Blvd, Suite 350
Woodbridge, VA 221913321
(703) 497-6700
fax (703) 497-6300
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- January 16, 2008
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Virginia #0101048248
- Medicaid
- VA #5853451
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1225072077. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,997
Distinct HCPCS
10
Medicare allowed
$161,160
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 894 | 258 | $84 | |
99497 |
Advance care planning, first 30 minutes | 218 | 218 | $78 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 202 | 202 | $121 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 194 | 118 | $119 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 190 | 190 | $17 | |
90674 |
Influenza vaccine, quadrivalent derived from cell cultures, preservative and antibiotic free | 73 | 73 | $32 | |
G0008 |
Administration of influenza virus vaccine | 73 | 73 | $30 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 27 | 26 | $14 | |
99496 |
Transitional care management services for problem of high complexity | 27 | 21 | $250 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 26 | 20 | $59 |
In context: peer comparison
Among 21 peers in Woodbridge Internal Medicine Physician, average services per provider: 132. This provider delivers 15× the peer median.Open Payments
Industry payments received
All-time total
$1,196
Transactions
50
Manufacturers
11
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 22 | $589.07 | |
| Novo Nordisk INC | 7 | $156.37 | |
| Lilly USA, LLC | 5 | $130.35 | |
| GlaxoSmithKline, LLC. | 5 | $89.61 | |
| Amgen INC. | 3 | $75.21 | |
| Bayer Healthcare Pharmaceuticals INC. | 2 | $36.31 | |
| Pfizer INC. | 2 | $32.74 | |
| Astellas Pharma US INC | 1 | $25.86 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 1 | $24.12 | |
| Xeris Pharmaceuticals, INC. | 1 | $20.72 | |
| Abbvie INC. | 1 | $15.85 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,383
Patients
735
Total drug cost
$35,891
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 373 | 107 | $3,034 |
| Atorvastatin Calcium | Generic | 372 | 115 | $3,933 |
| Rosuvastatin Calcium | Generic | 196 | 63 | $4,075 |
| Levothyroxine Sodium | Generic | 172 | 39 | $2,604 |
| Metformin Hcl | Generic | 166 | 52 | $1,928 |
| Metoprolol Succinate | Generic | 166 | 51 | $3,718 |
| Lisinopril | Generic | 125 | 34 | $1,230 |
| Hydralazine Hcl | Generic | 124 | 35 | $2,511 |
| Furosemide | Generic | 115 | 38 | $633 |
| Valsartan | Generic | 115 | 38 | $5,381 |
Hospital affiliations
Frequently asked questions
What is Dr. Siamak Heydarian's medical specialty?
Dr. Siamak Heydarian practices Internal Medicine Physician in Woodbridge, VA.
Where does Dr. Siamak Heydarian practice?
Dr. Siamak Heydarian practices at 2200 Opitz Blvd, Woodbridge, VA 221913321. Office phone: 7034976700.
What is Dr. Siamak Heydarian's NPI?
Dr. Siamak Heydarian's National Provider Identifier (NPI) is 1225072077, issued by NPPES.
Does Dr. Siamak Heydarian accept Medicare assignment?
Dr. Siamak Heydarian does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Siamak Heydarian commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Advance care planning (HCPCS 99497); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.