John Janisko, PA-C
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2024
- Practice address
- 1701 N 13th St, Shelton, WA 98584
- Practice phone
- Call (360) 426-2653
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mason Health - Mason Clinic-Primary Care
Rural Health Clinic - Hospital-Owned · Shelton, Washington
Find John Janisko's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
John Janisko is a physician assistant in Shelton, Washington
John Janisko practices at Mason Health - Mason Clinic-Primary Care in Shelton, Washington.
John Janisko's NPI, 1669243838, was assigned on January 15, 2024. John Janisko holds Washington license PA70075840.
- NPI
- 1669243838NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9032693197
- NPI enumeration date
- January 15, 2024
- NPI status
- Active
- Practice phone
- (360) 426-2653
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 27
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
John Janisko practices at Mason Health - Mason Clinic-Primary Care in Shelton, Washington
John Janisko's primary practice is Mason Health - Mason Clinic-Primary Care, at 1701 N 13th St, Shelton, WA 98584. The practice phone is (360) 426-2653.
- Mason Health - Mason Clinic-Primary Care1701 N 13th St, Shelton, WA 98584Phone(360) 426-2653
Source: Dmand AI Affiliation Data
John Janisko is affiliated with 2 sites of care and 1 medical group
John Janisko's primary practice is Mason Health - Mason Clinic-Primary Care in Shelton, Washington. John Janisko is also affiliated with Mason General Hospital & Family of Clinics. The medical group on file is Mason Health. John Janisko's employer is on file too: a rural health clinic (rhc).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at John Janisko's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Janisko practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mason Health - Mason Clinic-Primary Care | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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John Janisko is one of 3,005 physician assistants in Washington
Physician assistant is John Janisko's primary specialty in the NPI Registry, under taxonomy code 363A00000X. John Janisko is licensed in Washington.
Specialties and state licenses
- Physician assistant, WashingtonPrimary
Physician assistants near John Janisko
Counts of physician assistants with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
John Janisko's patients have a median age of 40
Across all payers, Dmand AI patient panel data puts John Janisko's median patient age at 40, with 53% women.
John Janisko's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 40
Patient panel by sex, all payers
- Women53%
- Men47%
Source: Dmand AI Patient Panel Data
Sources for John Janisko's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about John Janisko
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is John Janisko's NPI number?
John Janisko's NPI number is 1669243838. It was assigned on January 15, 2024, and it is active in the NPI Registry.
What does John Janisko specialize in?
John Janisko is a physician assistant in Shelton, Washington. The primary specialty in the NPI Registry is Physician Assistant (taxonomy code 363A00000X).
Where does John Janisko practice?
John Janisko practices at 1701 N 13th St, Shelton, WA 98584. John Janisko's primary practice is Mason Health - Mason Clinic-Primary Care in Shelton, Washington.
What is John Janisko's office phone number?
The practice phone on file for John Janisko is (360) 426-2653.
What is John Janisko's medical license number?
John Janisko holds Washington license PA70075840.
Which hospitals is John Janisko affiliated with?
John Janisko is affiliated with Mason General Hospital & Family of Clinics.
What medical group is John Janisko part of?
John Janisko is linked to Mason Health.
How long has John Janisko been practicing?
John Janisko graduated from medical school in 2025, 1 years ago.
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