Doctor profile · Federal record
Dr. Margaret Sigman
Allergy & Immunology Physician (CMS: Allergy/Immunology) · Pediatrics Physician · Student in an Organized Health Care Education/Training Program · Midlothian, VA
- NPI 1447461108
- Accepts Medicare
- 23 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5924 Harbour Park Dr
Midlothian, VA 231122163
(804) 739-9005
fax (804) 739-9006
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- March 10, 2017
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207K00000X — NUCC code
- State licenses (2)
- Virginia #0101253799 · North Carolina #200801988
- Medicaid (2)
- LA #21474 · NC #5910944
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1447461108. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,437
Distinct HCPCS
8
Medicare allowed
$77,094
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95165 |
Professional service for preparation and provision of 1 or more antigens | 2,758 | 53 | $15 | |
95004 |
Test for allergy using allergenic extract | 1,974 | 45 | $4 | |
95024 |
Test for allergy using allergenic extract injected into skin | 425 | 39 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 198 | 97 | $88 | |
94010 |
Test to measure expiratory airflow and volume | 25 | 21 | $26 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 24 | 24 | $110 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 18 | 16 | $124 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 15 | 15 | $163 |
In context: peer comparison
Among 3 peers in Midlothian Allergy & Immunology Physician, average services per provider: 924. This provider delivers 5.9× the peer median.Open Payments
Industry payments received
All-time total
$2,394
Transactions
119
Manufacturers
14
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Regeneron Healthcare Solutions, INC. | 20 | $505.29 | |
| AstraZeneca Pharmaceuticals Lp | 24 | $501.95 | |
| GlaxoSmithKline, LLC. | 22 | $404.26 | |
| Csl Behring | 14 | $302.83 | |
| Genentech USA, INC. | 12 | $162.29 | |
| Novartis Pharmaceuticals Corporation | 6 | $121.02 | |
| Takeda Pharmaceuticals U.S.A., INC. | 6 | $113.43 | |
| Amgen INC. | 4 | $77.71 | |
| Optinose US, INC. | 3 | $54.92 | |
| Grifols USA, LLC | 2 | $38.81 | |
| Genzyme Corporation | 2 | $37.20 | |
| Kaleo, INC. | 2 | $30.76 | |
| Blueprint Medicines Corporation | 1 | $22.22 | |
| BioCryst US Sales Co., LLC | 1 | $21.64 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
772
Patients
249
Total drug cost
$111,332
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Montelukast Sodium | Generic | 167 | 52 | $2,444 |
| Azelastine Hcl | Generic | 114 | 52 | $4,319 |
| Fluticasone Propionate | Generic | 88 | 30 | $1,143 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 73 | 30 | $2,641 |
| Levocetirizine Dihydrochloride | Generic | 71 | 18 | $1,022 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 50 | 14 | $45,470 |
| Prednisone | Generic | 38 | 22 | $103 |
| Breztri Aerosphere (Budesonide/Glycopyr/Formoterol) | Brand | 30 | 0 | $20,100 |
| Hydroxyzine Hcl | Generic | 26 | 0 | $481 |
| Triamcinolone Acetonide | Generic | 26 | 16 | $149 |
Frequently asked questions
What is Dr. Margaret Sigman's medical specialty?
Dr. Margaret Sigman practices Allergy & Immunology Physician in Midlothian, VA.
Where does Dr. Margaret Sigman practice?
Dr. Margaret Sigman practices at 5924 Harbour Park Dr, Midlothian, VA 231122163. Office phone: 8047399005.
What is Dr. Margaret Sigman's NPI?
Dr. Margaret Sigman's National Provider Identifier (NPI) is 1447461108, issued by NPPES.
Does Dr. Margaret Sigman accept Medicare assignment?
Yes. Dr. Margaret Sigman accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Margaret Sigman commonly perform?
Top Medicare-reported procedures in 2023: Professional service for preparation and provision of 1 or more antigens (HCPCS 95165); Test for allergy using allergenic extract (HCPCS 95004); Test for allergy using allergenic extract injected into skin (HCPCS 95024). Source: CMS Medicare Physician & Other Practitioners file.