Doctor profile · Federal record
Dr. Margaret Vallen Mashikian, M.D.
Allergy Physician (CMS: Allergy/Immunology) · South Weymouth, MA
- NPI 1881751394
- 40 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
851 Main St, Suite 21
South Weymouth, MA 021901612
(781) 331-1060 - Mailing address
-
20 Minuteman RD
Hingham, MA 020433613
Credentials & registration
- NPI registered
- January 2007 — 19 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207KA0200X — NUCC code
- State license (1)
- Massachusetts #075928
- Medicaid
- MA #3160432
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1881751394. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
3,330
Distinct HCPCS
10
Medicare allowed
$66,875
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95004 |
Test for allergy using allergenic extract | 1,150 | 41 | $4 | |
95024 |
Test for allergy using allergenic extract injected into skin | 810 | 34 | $9 | |
95117 |
Professional service for multiple injections of allergen | 397 | 30 | $13 | |
95165 |
Professional service for preparation and provision of 1 or more antigens | 393 | 19 | $17 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 241 | 152 | $95 | |
94010 |
Test to measure expiratory airflow and volume | 123 | 69 | $29 | |
96372 |
Injection of drug or substance under skin or into muscle | 104 | 18 | $15 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 39 | 31 | $133 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 37 | 37 | $173 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 22 | 22 | $117 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 302. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$2,672
Transactions
113
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | 27 | $774.45 | |
| Amgen Inc. | 16 | $308.79 | |
| Regeneron Healthcare Solutions, Inc. | 9 | $222.82 | |
| Novartis Pharmaceuticals Corporation | 9 | $201.93 | |
| PFIZER INC. | 13 | $193.77 | |
| Genentech USA, Inc. | 5 | $167.83 | |
| Pharming Healthcare, Inc. | 6 | $158.30 | |
| GlaxoSmithKline, LLC. | 7 | $147.82 | |
| BioCryst US Sales Co., LLC | 4 | $117.46 | |
| Grifols USA, LLC | 6 | $92.46 | |
| LEO Pharma Inc. | 2 | $55.04 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $53.00 | |
| Blueprint Medicines Corporation | 2 | $51.40 | |
| GENZYME CORPORATION | 2 | $50.02 | |
| kaleo, Inc. | 3 | $47.48 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
660
Patients
271
Total drug cost
$189,420
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Azelastine Hcl | Generic | 93 | 41 | $4,353 |
| Montelukast Sodium | Generic | 92 | 30 | $2,476 |
| Fluticasone Propionate | Generic | 82 | 38 | $2,033 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 65 | 21 | $44,479 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 53 | 37 | $2,315 |
| Olopatadine Hcl | Generic | 43 | 21 | $6,090 |
| Advair Diskus (Fluticasone Propion/Salmeterol) | Brand | 40 | 12 | $36,382 |
| Breztri Aerosphere (Budesonide/Glycopyr/Formoterol) | Brand | 35 | 0 | $30,548 |
| Prednisone | Generic | 32 | 29 | $164 |
| Ipratropium Bromide | Generic | 24 | 12 | $1,235 |
Frequently asked questions
What is Dr. Margaret Vallen Mashikian's medical specialty?
Dr. Margaret Vallen Mashikian practices Allergy Physician in South Weymouth, MA.
Where does Dr. Margaret Vallen Mashikian practice?
Dr. Margaret Vallen Mashikian practices at 851 Main St, South Weymouth, MA 021901612. Office phone: 7813311060.
What is Dr. Margaret Vallen Mashikian's NPI?
Dr. Margaret Vallen Mashikian's National Provider Identifier (NPI) is 1881751394, issued by NPPES.
Does Dr. Margaret Vallen Mashikian accept Medicare assignment?
Dr. Margaret Vallen Mashikian does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Margaret Vallen Mashikian commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Test for allergy using allergenic extract injected into skin (HCPCS 95024); Professional service for multiple injections of allergen (HCPCS 95117). Source: CMS Medicare Physician & Other Practitioners file.