John M. Williamson
- Part D claims, 2024
- 309
- Industry payments
- $5,971
- Medical groups
- 3
- State license
- 1
- Year NPI issued
- 2019
- Practice address
- 623 Park Meadow Rd, Westerville, OH 43081
- Practice phone
- Call (614) 774-1120
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Serenity Behavioral Health Services, Inc.
Westerville, Ohio
Find John Williamson'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 M. Williamson is a psychiatric/mental health nurse practitioner in Westerville, Ohio
John Williamson practices at Serenity Behavioral Health Services, Inc. in Westerville, Ohio.
John Williamson's NPI, 1740847946, was assigned on May 22, 2019. John Williamson holds Ohio license APRN.CNP.025091.
- NPI
- 1740847946NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416288998
- NPI enumeration date
- May 22, 2019
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (614) 774-1120
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 33
- Medical school graduation
- 2019
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
John M. Williamson practices at Serenity Behavioral Health Services, Inc. in Westerville, Ohio
John Williamson's primary practice is Serenity Behavioral Health Services, Inc., at 623 Park Meadow Rd, Westerville, OH 43081 in Franklin County. The practice phone is (614) 774-1120.
- Serenity Behavioral Health Services, Inc.623 Park Meadow Rd, Westerville, OH 43081 · Franklin CountyPhone(614) 774-1120
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
John M. Williamson is affiliated with 1 site of care and 3 medical groups
John Williamson's primary practice is Serenity Behavioral Health Services, Inc. in Westerville, Ohio. The medical group on file is Serenity Behavioral Health Services. Dmand AI also links John Williamson to 2 more medical groups, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at John M. Williamson's practice
Dmand AI tracks the electronic health record (EHR) system at each site where John Williamson practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Serenity Behavioral Health Services, Inc. | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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John M. Williamson is one of 2,198 psychiatric/mental health nurse practitioners in Ohio
Psychiatric/mental health is John Williamson's primary specialty in the NPI Registry, under taxonomy code 363LP0808X. John Williamson is licensed in Ohio.
Specialties and state licenses
- Psychiatric/mental health nurse practitioner, OhioPrimary
Psychiatric/mental health nurse practitioners near John Williamson
Counts of psychiatric/mental health nurse practitioners 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 M. Williamson's patients have a median age of 37
Across all payers, Dmand AI patient panel data puts John Williamson's median patient age at 37, with 61% women.
John Williamson's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women61%
- Men37%
Source: Dmand AI Patient Panel Data
John M. Williamson wrote 309 Medicare Part D claims in 2024
In 2024, John Williamson wrote 309 Medicare Part D claims for 36 patients. 89% of them were for generic drugs.
John Williamson's Part D claims by kind of drug, 2024
- Generic276 claims89%
- Brand-name33 claims11%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
John M. Williamson offers telehealth to Medicare patients
John Williamson accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists John Williamson as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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John M. Williamson received $5,971 in industry payments in 2025
CMS Open Payments shows 17 general payments to John Williamson from 4 drug and device companies in 2025. Speaker and faculty fees make up the largest share, 92% of the total. Abbvie Inc. paid the most, $5,582.
General payments to John Williamson by kind, 2025 to 2025
- Speaker and faculty fees$5,50092%
- Food and beverage$4718%
Companies that paid John Williamson the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for John M. Williamson'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 M. Williamson
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 M. Williamson's NPI number?
John M. Williamson's NPI number is 1740847946. It was assigned on May 22, 2019, and it is active in the NPI Registry.
What does John M. Williamson specialize in?
John M. Williamson is a psychiatric/mental health nurse practitioner in Westerville, Ohio. The primary specialty in the NPI Registry is Psychiatric/Mental Health Nurse Practitioner (taxonomy code 363LP0808X).
Where does John M. Williamson practice?
John Williamson practices at 623 Park Meadow Rd, Westerville, OH 43081. John Williamson's primary practice is Serenity Behavioral Health Services, Inc. in Westerville, Ohio. Dmand AI also links John Williamson to 2 medical groups.
What is John M. Williamson's office phone number?
The practice phone on file for John Williamson is (614) 774-1120.
What is John M. Williamson's medical license number?
John Williamson holds Ohio license APRN.CNP.025091.
What medical group is John M. Williamson part of?
John Williamson is linked to Serenity Behavioral Health Services. Dmand AI links John Williamson to 2 more medical groups.
Does John M. Williamson accept Medicare?
Yes. CMS lists John Williamson as accepting Medicare assignment.
Does John M. Williamson offer telehealth?
Yes. The CMS Doctors and Clinicians file lists John Williamson as offering telehealth services.
Has John M. Williamson received payments from drug or device companies?
CMS Open Payments shows $5,971 in general payments to John Williamson from 4 companies from 2025 to 2025. The largest total came from Abbvie Inc.
How long has John M. Williamson been practicing?
John Williamson graduated from medical school in 2019, 7 years ago.
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