Denise Johnson, PA-C
NPI 1124226147 · Physician Assistant · Waldorf, MD
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Denise Johnson, PA-C is a Physician Assistant provider in Waldorf, MD (NPI 1124226147).
Provider details
- NPI number
- 1124226147
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- C0002293 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
4,666 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Test for Allergy Using Allergenic Extract95004 | 3,170 | $3 |
| Professional Service for Preparation and Provision of 1 Or More Antigens95165 | 1,280 | $12 |
| Test to Measure Expiratory Airflow and Volume94010 | 74 | $23 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 66 | $77 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 51 | $108 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 13 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 75 | 31 |
| Fluticasone Propionate | 49 | 18 |
| Azelastine Hcl | 48 | 17 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 44 | — |
| Levocetirizine Dihydrochloride | 31 | 12 |
| Ipratropium Bromide | 27 | 11 |
| Azelastine/Fluticasonebrand: Azelastine-Fluticasone | 20 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,952 across 76 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-07-11
- Last updated
- 2013-06-18
Frequently asked questions
- What is Denise Johnson's NPI number?
- Denise Johnson's National Provider Identifier (NPI) is 1124226147, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Denise Johnson's specialty?
- Denise Johnson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Denise Johnson located?
- Denise Johnson's practice location on file with NPPES is 12101 Old Line Ctr, Waldorf, MD 20602-2552.
- What is Denise Johnson's phone number?
- The practice phone number listed in the NPPES registry for Denise Johnson is (301) 843-2223.
- Does Denise Johnson accept Medicare?
- Denise Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Denise Johnson's NPI active?
- Yes — Denise Johnson's NPI (1124226147) is active in the NPPES registry as of the last update on 2013-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.