Doctor profile · Federal record
Dr. Katherine Szema, M.D.
Allergy & Immunology Physician (CMS: Allergy/Immunology) · Allergy Physician · Shrewsbury, NJ
- NPI 1841363660
- Accepts Medicare
- MIPS 91.3 / 100 · 2023
- 31 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1131 Broad St, Suite 103
Shrewsbury, NJ 077024329
(732) 389-3388
fax (732) 389-2387 - Mailing address
-
660 White Plains RD Fl 4
Tarrytown, NY 105915139
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- July 25, 2025
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207K00000X — NUCC code
- State license (1)
- New Jersey #25MA09533300
- Medicaid
- NY #02095467
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1841363660. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
12,888
Distinct HCPCS
10
Medicare allowed
$125,912
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95004 |
Test for allergy using allergenic extract | 10,295 | 146 | $4 | |
95024 |
Test for allergy using allergenic extract injected into skin | 1,482 | 100 | $9 | |
95117 |
Professional service for multiple injections of allergen | 656 | 53 | $13 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 156 | 119 | $136 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 91 | 91 | $121 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 88 | 88 | $179 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 70 | 57 | $98 | |
96160 |
Administration and interpretation of patient-focused health risk assessment | 21 | 21 | $3 | |
95076 |
Test for allergy using ingested items, initial 2 hours | 18 | 17 | $133 | |
95012 |
Test to measure the level of nitric oxide gas | 11 | 11 | $21 |
In context: peer comparison
Among 1 peers in Shrewsbury Allergy & Immunology Physician, average services per provider: 1,288. This provider delivers 10× the peer median.Open Payments
Industry payments received
All-time total
$1,835
Transactions
64
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals Lp | 16 | $516.30 | |
| Regeneron Healthcare Solutions, INC. | 15 | $350.26 | |
| Genzyme Corporation | 7 | $311.65 | |
| BioCryst US Sales Co., LLC | 2 | $140.91 | |
| Takeda Pharmaceuticals U.S.A., INC. | 4 | $78.38 | |
| Pfizer INC. | 4 | $73.83 | |
| Optinose US, INC. | 4 | $58.16 | |
| Hikma Pharmaceuticals USA | 1 | $50.50 | |
| GlaxoSmithKline, LLC. | 3 | $49.78 | |
| Csl Behring | 2 | $42.40 | |
| Kaleo, INC. | 2 | $38.46 | |
| Integra LifeSciences Corporation | 1 | $32.41 | |
| Inspire Medical Systems, INC. | 1 | $24.93 | |
| Genentech USA, INC. | 1 | $18.50 | |
| Novartis Pharmaceuticals Corporation | 1 | $17.47 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
825
Patients
332
Total drug cost
$186,639
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ipratropium Bromide | Generic | 230 | 98 | $12,426 |
| Azelastine Hcl | Generic | 147 | 74 | $7,558 |
| Montelukast Sodium | Generic | 138 | 49 | $3,038 |
| Fluticasone Propionate | Generic | 122 | 62 | $2,730 |
| Azithromycin | Generic | 38 | 15 | $960 |
| Dupixent Pen (Dupilumab) | Brand | 37 | 0 | $134,704 |
| Levocetirizine Dihydrochloride | Generic | 32 | 0 | $402 |
| Epinephrine | Generic | 26 | 23 | $9,830 |
| Fluocinolone Acetonide Oil | Generic | 16 | 11 | $1,170 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 14 | 0 | $13,405 |
Frequently asked questions
What is Dr. Katherine Szema's medical specialty?
Dr. Katherine Szema practices Allergy & Immunology Physician in Shrewsbury, NJ.
Where does Dr. Katherine Szema practice?
Dr. Katherine Szema practices at 1131 Broad St, Shrewsbury, NJ 077024329. Office phone: 7323893388.
What is Dr. Katherine Szema's NPI?
Dr. Katherine Szema's National Provider Identifier (NPI) is 1841363660, issued by NPPES.
Does Dr. Katherine Szema accept Medicare assignment?
Yes. Dr. Katherine Szema accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine Szema 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.