Katherine S. Johnson, PA-C
- Hospital affiliations
- 1
- Industry payments
- $187
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2014
- Practice address
- 830 Washington Street, Watertown, NY 13601
- Practice phone
- Call (315) 785-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Katherine Johnson'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.
Katherine S. Johnson is a physician assistant in Watertown, New York
Katherine Johnson practices at Samaritan Medical Center in Watertown, New York, part of MultiCare Health System.
Katherine Johnson's NPI, 1881018588, was assigned on February 15, 2014. Katherine Johnson holds New York license 0173471.
- NPI
- 1881018588NPI Registry (opens in a new tab)
- NPI enumeration date
- February 15, 2014
- NPI status
- Active
- Practice phone
- (315) 785-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Katherine S. Johnson practices at Samaritan Medical Center in Watertown, New York
Katherine Johnson's primary practice is Samaritan Medical Center, at 830 Washington Street, Watertown, NY 13601 in Jefferson County. The practice phone is (315) 785-4000.
- Samaritan Medical Center830 Washington Street, Watertown, NY 13601 · Jefferson CountyPhone(315) 785-4000
Source: Dmand AI Affiliation Data
Katherine S. Johnson is affiliated with 2 sites of care and 1 medical group
Katherine Johnson's primary practice is Samaritan Medical Center in Watertown, New York, part of MultiCare Health System. The medical group on file is Samaritan Medical Center. Dmand AI also links Katherine Johnson to 1 more group practice or clinic, named with a free account. Katherine Johnson's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Katherine S. Johnson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Katherine Johnson practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Samaritan Medical Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across MultiCare Health System and 6.2K+ hospitals, with verified contacts in the same login.
Katherine S. Johnson is one of 2,670 physician assistants in New York
Medical is Katherine Johnson's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Katherine Johnson is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA). Katherine Johnson is licensed in New York.
Specialties and state licenses
- Medical physician assistant, New YorkPrimary
Physician assistants near Katherine Johnson
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
Katherine S. Johnson's patients have a median age of 69
Across all payers, Dmand AI patient panel data puts Katherine Johnson's median patient age at 69, with 0% women.
Katherine Johnson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Katherine S. Johnson received $187 in industry payments in 2025
CMS Open Payments shows 2 general payments to Katherine Johnson from 2 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. ShockWave Medical, Inc paid the most, $157.
Companies that paid Katherine Johnson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Katherine S. Johnson is board certified in certified physician assistant
Katherine Johnson is a member of AAPA.
- Board certified in certified physician assistant
Source: Dmand AI Professional Profile Data
Sources for Katherine S. Johnson'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 |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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 Katherine S. Johnson
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Katherine S. Johnson's NPI number?
Katherine S. Johnson's NPI number is 1881018588. It was assigned on February 15, 2014, and it is active in the NPI Registry.
What does Katherine S. Johnson specialize in?
Katherine S. Johnson is a physician assistant in Watertown, New York. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Katherine S. Johnson practice?
Katherine Johnson practices at 830 Washington Street, Watertown, NY 13601. Katherine Johnson's primary practice is Samaritan Medical Center in Watertown, New York, part of MultiCare Health System. Dmand AI also links Katherine Johnson to 1 group practice or clinic.
What is Katherine S. Johnson's office phone number?
The practice phone on file for Katherine Johnson is (315) 785-4000.
What is Katherine S. Johnson's medical license number?
Katherine Johnson holds New York license 0173471.
Which hospitals is Katherine S. Johnson affiliated with?
Katherine Johnson practices at Samaritan Medical Center in Watertown, New York.
What medical group is Katherine S. Johnson part of?
Katherine Johnson is linked to Samaritan Medical Center.
Is Katherine S. Johnson board certified?
Yes. Katherine Johnson is board certified in certified physician assistant by the National Commission on Certification of Physician Assistants (NCCPA).
Has Katherine S. Johnson received payments from drug or device companies?
CMS Open Payments shows $187 in general payments to Katherine Johnson from 2 companies from 2025 to 2025. The largest total came from ShockWave Medical, Inc.
How long has Katherine S. Johnson been practicing?
Katherine Johnson's NPI was assigned in 2014.
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