Casey Johnson, PA
NPI 1578092821 · Physician Assistant · Springfield, MA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Casey Johnson, PA is a Physician Assistant provider in Springfield, MA (NPI 1578092821).
Provider details
- NPI number
- 1578092821
- 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
- Physician Assistant363A00000X
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
9 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
78 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 49 | $103 |
| Injection of Trigger Points, 3 Or More Muscles20553 | 29 | $48 |
Typical Medicare-allowed amounts for these services range $48–$103 (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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-09
- Last updated
- 2023-09-26
- Certified
- 2023-09-26
Frequently asked questions
- What is Casey Johnson's NPI number?
- Casey Johnson's National Provider Identifier (NPI) is 1578092821, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Casey Johnson's specialty?
- Casey Johnson is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Casey Johnson located?
- Casey Johnson's practice location on file with NPPES is 300 Birnie Ave Ste 201, Springfield, MA 01107-1121.
- What is Casey Johnson's phone number?
- The practice phone number listed in the NPPES registry for Casey Johnson is (413) 233-1292.
- Does Casey Johnson accept Medicare?
- Casey Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Casey Johnson's NPI active?
- Yes — Casey Johnson's NPI (1578092821) is active in the NPPES registry as of the last update on 2023-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.