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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DEREK K JOHNSON MD
NPI 1285622183
Allergy & Immunology - Allergy in Fairfax, VA

Active since October 13, 2005PECOS EnrolledAccepts Medicare Assignment
3903A FAIR RIDGE DR, FAIRFAX, VA 22033(703) 648-0030(703) 648-9028 Get Directions Write a Review

NPPES record last updated: August 12, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 12, 2026, Feb 27, 2017 (2 updates tracked since 2017).

About Derek K Johnson Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DEREK K JOHNSON MD (NPI 1285622183) is an individual allergy provider in Fairfax, Virginia, licensed in Virginia (0101230706) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Washington School Of Medicine (1995).

NPPES Registry Identity

NPI1285622183
Entity TypeIndividualMale
Primary Taxonomy207KA0200X
Provider Legal NameDEREK K JOHNSONCredential: MD
Location Address3903A FAIR RIDGE DRFairfax, VA 22033-2938
Mailing Address3903a Fair Ridge DrFairfax, VA 22033-2938 · (703) 648-0030 · Fax (703) 648-9028
Phone(703) 648-0030
Fax(703) 648-9028
Sole ProprietorYes
Medical School CMSUniversity Of Washington School Of MedicineGraduated 1995
Enumeration DateOctober 13, 2005
Last NPPES UpdateAugust 12, 20262 updates tracked since enumeration
NPPES CertifiedAugust 12, 2026
✔ NPI 1285622183 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAllergy & Immunology · AllergyAllopathic & Osteopathic Physicians
Taxonomy Code207KA0200X
License✔ Licensed in VA · 0101230706
Definition
A physician who specializes in the diagnosis, treatment, and management of allergies. Source: National Uniform Claim Committee
3903A FAIR RIDGE DR, Fairfax, VA 22033
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Derek K Johnson Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4880653369
PECOS Enrollment IDI20140917001575, I20140924001153
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Professional service for preparation and provision of 1 or more antigens 95165
This service involves the creation and supply of antigens, substances that stimulate your immune system to fight diseases. These antigens can be used in vaccines or allergy tests to help your body build defenses against specific health threats.
759 services17 patients
Test for allergy using allergenic extract 95004
An allergy test with allergenic extract is a diagnostic method to identify substances causing allergic reactions. Small amounts of common allergens are introduced to your body, usually through skin pricks or blood tests. Your body's response helps determine your allergies.
598 services18 patients
Professional service for multiple injections of allergen 95117
The professional service for multiple injections of allergens involves administering small doses of specific allergens into your body. This is done to help your immune system become less sensitive to them, reducing your allergic reaction over time. It's a safe, effective way to manage allergies.
270 services14 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
78 services61 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
30 services30 patients

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

Reported Quality Measures

e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
62%4,328 patients1/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
98%266 patients4/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
19%2,719 patients1/55-star benchmark: 97%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
100%2,719 patients5/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
24%2,719 patients2/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
41%2,719 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs separately) A4221
DME-Other DME · category DE017N
2 suppliers13 claims47 services$18.39 avg. paid by Medicare
Injection, immune globulin (hizentra), 100 mg J1559
Treatment-Injections and Infusions (nononcologic) · category RI008N
2 suppliers13 claims4,801 services$9.47 avg. paid by Medicare
Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg J1569
Treatment-Injections and Infusions (nononcologic) · category RI008N
2 suppliers12 claims1,440 services$35.63 avg. paid by Medicare
Supplies for external non-insulin drug infusion pump, syringe type cartridge, sterile, each K0552
DME-Other DME · category DE000N
2 suppliers13 claims49 services$2.37 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Derek Johnson's NPI number?

The NPI number for Derek Johnson is 1285622183. It was assigned to this individual provider in the NPPES registry on October 13, 2005.

Where is Derek Johnson located?

Derek Johnson practices at 3903A Fair Ridge Dr, Fairfax, VA 22033. The listed phone number is (703) 648-0030.

What is Derek Johnson's specialty?

The primary specialty registered for this NPI is Allergy & Immunology, specializing in Allergy, with taxonomy code 207KA0200X.

Is Derek Johnson enrolled in Medicare?

Yes. Derek Johnson is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Derek Johnson was last updated on August 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.