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Edit this profileAt a glance
- 12101 Old Line Ctr, Waldorf, MD 20602
About Denise Johnson
Denise S. Johnson, PA-C is a physician assistant practicing in Waldorf, MD. Medicare claims data shows Denise provided 4,666 services to 254 patients. The services billed most often include test for allergy using allergenic extract, professional service for preparation and provision of 1 or more antigens, and test to measure expiratory airflow and volume. This provider record is associated with NPI 1124226147.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (301) 843-2223
- Email not available
Practice Locations
12101 OLD LINE CTR
Waldorf, MD 20602
Procedures Most Often Billed to Medicare
4,666 services · 254 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test for allergy using allergenic extract | Treatment | 95004 |
3,170 | More than most peers in Physician Assistant |
| Professional service for preparation and provision of 1 or more antigens | Treatment | 95165 |
1,280 | More than most peers in Physician Assistant |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
74 | More often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
66 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
51 | As often as other peers in Physician Assistant |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
13 | Less often than most peers in Physician Assistant |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
12 | Less often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other physician assistants in Waldorf 8
Same specialty, same city.
More connections — 17 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2000 at Other 7
Providers who graduated from the same medical school in the same year.
Also performs Test for allergy using allergenic extract 2
Providers in MD who bill this service to Medicare most often.
Common questions
What is Denise S. Johnson's specialty?
Denise S. Johnson is a physician assistant in Waldorf, MD. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Denise S. Johnson?
Denise S. Johnson is listed at 12101 Old Line Ctr, Waldorf, MD 20602. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Denise S. Johnson?
The number on file is (301) 843-2223. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Denise S. Johnson?
Denise S. Johnson's National Provider Identifier is 1124226147. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Denise S. Johnson's education?
Denise S. Johnson attended Other, graduating in 2000. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Denise S. Johnson have?
Denise S. Johnson has 26 years experience. Calculated from a graduation year of 2000, reported in the CMS National Downloadable File.
CMS public data
What is Denise S. Johnson known for?
According to Medicare billing data, Denise S. Johnson provides treatments such as test for allergy using allergenic extract and professional service for preparation and provision of 1 or more antigens, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Denise S. Johnson's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Denise S. Johnson. If this is you, claiming it is free.
Guide.md
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