Geoffrey Michael Simkins, MSW
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2013
- Practice locations
- 2
- Practice address
- 627 5th St Ste 200, Mukilteo, WA 98275-1580
- Practice phone
- Call (206) 309-3839
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mastery Mental Health, PLLC
Physician office · Mukilteo, Washington
Find Geoffrey Simkins' 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.
Geoffrey Michael Simkins is a clinical social worker in Kirkland, Washington
Geoffrey Simkins practices at Mastery Mental Health, PLLC in Mukilteo, Washington.
Geoffrey Simkins' NPI, 1568703551, was assigned on March 15, 2013. Geoffrey Simkins holds Washington license SC60341239.
- NPI
- 1568703551NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7214225119
- NPI enumeration date
- March 15, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (206) 309-3839
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Geoffrey Michael Simkins practices in Mukilteo and Kirkland
Geoffrey Simkins' primary practice is Mastery Mental Health, PLLC, at 627 5th St Ste 200, Mukilteo, WA 98275-1580. The practice phone is (206) 309-3839. The NPI Registry lists Geoffrey Simkins' practice address as 12303 Ne 130th Ln, Kirkland, WA 98034.
- Mastery Mental Health, PLLCPrimary627 5th St Ste 200, Mukilteo, WA 98275-1580Phone(206) 309-3839
- NPI Registry address12303 Ne 130th Ln, Kirkland, WA 98034 · King County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Geoffrey Michael Simkins is affiliated with 1 site of care
Geoffrey Simkins' primary practice is Mastery Mental Health, PLLC in Mukilteo, Washington.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Geoffrey Michael Simkins' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Geoffrey Simkins practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mastery Mental Health, PLLC | Available with a free account |
Source: Dmand AI Technology Install Data
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Geoffrey Michael Simkins is one of 1,897 clinical social workers in Washington
Social worker is Geoffrey Simkins' primary specialty in the NPI Registry, under taxonomy code 1041C0700X. The record also lists clinical. Geoffrey Simkins is licensed in Washington.
Specialties and state licenses
- Clinical social worker, WashingtonPrimary
Clinical social workers near Geoffrey Simkins
Counts of clinical social workers 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
Geoffrey Michael Simkins' patients have a median age of 38
Across all payers, Dmand AI patient panel data puts Geoffrey Simkins' median patient age at 38, with 38% women.
Geoffrey Simkins' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
Patient panel by sex, all payers
- Women38%
- Men63%
Source: Dmand AI Patient Panel Data
How Geoffrey Michael Simkins takes part in Medicare
Geoffrey Simkins accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
Sources for Geoffrey Michael Simkins'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 Affiliation DataDmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (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 Geoffrey Michael Simkins
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Geoffrey Michael Simkins' NPI number?
Geoffrey Michael Simkins' NPI number is 1568703551. It was assigned on March 15, 2013, and it is active in the NPI Registry.
What does Geoffrey Michael Simkins specialize in?
Geoffrey Michael Simkins is a clinical social worker in Kirkland, Washington. The primary specialty in the NPI Registry is Clinical Social Worker (taxonomy code 1041C0700X).
Where does Geoffrey Michael Simkins practice?
Geoffrey Simkins practices at 627 5th St Ste 200, Mukilteo, WA 98275-1580. Geoffrey Simkins also practices at 12303 Ne 130th Ln, Kirkland, WA 98034. Geoffrey Simkins' primary practice is Mastery Mental Health, PLLC in Mukilteo, Washington.
What is Geoffrey Michael Simkins' office phone number?
The practice phone on file for Geoffrey Simkins is (206) 309-3839.
What is Geoffrey Michael Simkins' medical license number?
Geoffrey Simkins holds Washington license SC60341239.
Does Geoffrey Michael Simkins accept Medicare?
Yes. CMS lists Geoffrey Simkins as accepting Medicare assignment.
How long has Geoffrey Michael Simkins been practicing?
Geoffrey Simkins graduated from medical school in 2012, 14 years ago.
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