Erin Johnson, PA
NPI 1720859630 · Physician Assistant · Fairfax, VA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Erin Johnson, PA is a Physician Assistant provider in Fairfax, VA (NPI 1720859630).
Provider details
- NPI number
- 1720859630
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
2 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
19 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 19 | $85 |
Typical Medicare-allowed amounts for these services range $85–$85 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 37 | 27 |
| Celecoxib | 31 | 19 |
| Ondansetronbrand: Ondansetron Odt | 20 | 20 |
| Ondansetron Hcl | 18 | 17 |
| Cephalexin | 17 | 17 |
| Meloxicam | 16 | — |
| Diclofenac Sodium | 14 | 11 |
| Oxycodone Hcl |
Practice location
Mailing address
Additional practice locations (1)
- 22930 Shooting Star PlBrambleton, VA 20148-6462Phone: (254) 702-0107
Registry dates
- Enumerated
- 2024-01-10
- Last updated
- 2024-01-10
- Certified
- 2023-12-09
Frequently asked questions
- What is Erin Johnson's NPI number?
- Erin Johnson's National Provider Identifier (NPI) is 1720859630, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erin Johnson's specialty?
- Erin Johnson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Erin Johnson located?
- Erin Johnson's practice location on file with NPPES is 3620 Joseph Siewick Dr Ste 100, Fairfax, VA 22033-1757.
- What is Erin Johnson's phone number?
- The practice phone number listed in the NPPES registry for Erin Johnson is (703) 277-2663.
- Does Erin Johnson accept Medicare?
- Erin Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Erin Johnson's NPI active?
- Yes — Erin Johnson's NPI (1720859630) is active in the NPPES registry as of the last update on 2024-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.