Doctor profile · Federal record
Dr. Denise Johnson, PA-C
Physician Assistant · Physician Assistant · Waldorf, MD
- NPI 1124226147
- Accepts Medicare
- 26 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
12101 Old Line Ctr
Waldorf, MD 206022552
(301) 843-2223
fax (301) 705-9720 - Mailing address
-
5406 Ingleboro CT
Capitol Heights, MD 207433047
Credentials & registration
- NPI registered
- July 2007 — 19 yrs on file
- Profile last updated
- June 18, 2013
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 363A00000X — NUCC code
- State licenses (2)
- Maryland #C0002293 · District of Columbia #PA30173
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124226147. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
5,664
Distinct HCPCS
7
Medicare allowed
$47,208
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95004 |
Test for allergy using allergenic extract | 4,205 | 57 | $3 | |
95165 |
Professional service for preparation and provision of 1 or more antigens | 1,180 | 38 | $13 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 126 | 81 | $78 | |
94010 |
Test to measure expiratory airflow and volume | 82 | 55 | $23 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 36 | 36 | $96 | |
95012 |
Test to measure the level of nitric oxide gas | 20 | 16 | $16 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 15 | 15 | $109 |
In context: peer comparison
Among 5 peers in this city , average services per provider: 201. This provider delivers 28× the peer median.Open Payments
Industry payments received
All-time total
$1,952
Transactions
76
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | 14 | $510.64 | |
| GENZYME CORPORATION | 13 | $350.60 | |
| GlaxoSmithKline, LLC. | 14 | $338.23 | |
| Genentech USA, Inc. | 4 | $117.44 | |
| PFIZER INC. | 5 | $95.86 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 5 | $87.29 | |
| Regeneron Healthcare Solutions, Inc. | 3 | $72.34 | |
| Optinose US, Inc. | 3 | $71.61 | |
| Novartis Pharmaceuticals Corporation | 3 | $61.16 | |
| ALK-Abello, Inc | 3 | $59.57 | |
| Amgen Inc. | 3 | $55.45 | |
| Grifols USA, LLC | 2 | $42.27 | |
| LEO Pharma Inc. | 1 | $37.44 | |
| Blueprint Medicines Corporation | 2 | $35.05 | |
| kaleo, Inc. | 1 | $16.57 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
213
Patients
33
Total drug cost
$27,229
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Montelukast Sodium | Generic | 48 | 20 | $1,059 |
| Levocetirizine Dihydrochloride | Generic | 31 | 0 | $690 |
| Fluticasone Propionate | Generic | 30 | 13 | $642 |
| Azelastine Hcl | Generic | 29 | 0 | $1,445 |
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 24 | 0 | $21,160 |
| Hydroxyzine Hcl | Generic | 19 | 0 | $571 |
| Olopatadine Hcl | Generic | 18 | 0 | $1,228 |
| Ipratropium Bromide | Generic | 14 | 0 | $434 |
Frequently asked questions
What is Dr. Denise Johnson's medical specialty?
Dr. Denise Johnson practices Physician Assistant in Waldorf, MD.
Where does Dr. Denise Johnson practice?
Dr. Denise Johnson practices at 12101 Old Line Ctr, Waldorf, MD 206022552. Office phone: 3018432223.
What is Dr. Denise Johnson's NPI?
Dr. Denise Johnson's National Provider Identifier (NPI) is 1124226147, issued by NPPES.
Does Dr. Denise Johnson accept Medicare assignment?
Yes. Dr. Denise Johnson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Denise Johnson commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Professional service for preparation and provision of 1 or more antigens (HCPCS 95165); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.