Mark Earl Germack, DDS
- Part D claims, 2024
- 81
- Industry payments
- $32
- Affiliated sites
- 2
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 8015 Se 28th St Ste 205 Suite 205, Mercer Island, WA 98040-2910
- Practice phone
- Call (206) 913-2599
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
CORE Endodontics
Physician office · Mercer Island, Washington
Find Mark Germack'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.
Mark Earl Germack is an endodontist in Issaquah, Washington
Mark Germack practices at CORE Endodontics in Mercer Island, Washington.
Mark Germack's NPI, 1144349119, was assigned on March 28, 2007. Mark Germack holds Washington license DE00010298.
- NPI
- 1144349119NPI Registry (opens in a new tab)
- NPI enumeration date
- March 28, 2007
- NPI status
- Active
- Practice phone
- (206) 913-2599
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Mark Earl Germack practices in Mercer Island and Issaquah
Mark Germack's primary practice is CORE Endodontics, at 8015 Se 28th St Ste 205 Suite 205, Mercer Island, WA 98040-2910. The practice phone is (206) 913-2599. The NPI Registry lists Mark Germack's practice address as 435 E Sunset Way, Issaquah, WA 98027.
- CORE EndodonticsPrimary8015 Se 28th St Ste 205 Suite 205, Mercer Island, WA 98040-2910Phone(206) 913-2599
- NPI Registry address435 E Sunset Way, Issaquah, WA 98027 · King County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; and Dmand AI Practice Data
Mark Earl Germack is affiliated with 2 sites of care
Mark Germack's primary practice is CORE Endodontics in Mercer Island, Washington. Dmand AI also links Mark Germack to 1 physician office, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Mark Earl Germack's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Mark Germack practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| CORE Endodontics | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Mark Earl Germack is one of 131 endodontists in Washington
Endodontics is Mark Germack's primary specialty in the NPI Registry, under taxonomy code 1223E0200X. Mark Germack is licensed in Washington.
Specialties and state licenses
- Endodontist, WashingtonPrimary
Endodontists near Mark Germack
Counts of endodontists 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
Mark Earl Germack's patients have a median age of 86
Across all payers, Dmand AI patient panel data puts Mark Germack's median patient age at 86, with 100% women.
Mark Germack's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 86
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Mark Earl Germack wrote 81 Medicare Part D claims in 2024
In 2024, Mark Germack wrote 81 Medicare Part D claims for 63 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in Mark Germack's Part D claims, 2024
- Antibiotics84%68 of 81 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Mark Earl Germack received $32 in industry payments in 2025
CMS Open Payments shows 1 general payment to Mark Germack from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. NuSmile, Ltd. paid the most, $32.
Companies that paid Mark Germack 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 Mark Earl Germack'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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Mark Earl Germack
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Mark Earl Germack's NPI number?
Mark Earl Germack's NPI number is 1144349119. It was assigned on March 28, 2007, and it is active in the NPI Registry.
What does Mark Earl Germack specialize in?
Mark Earl Germack is an endodontist in Issaquah, Washington. The primary specialty in the NPI Registry is Endodontist (taxonomy code 1223E0200X).
Where does Mark Earl Germack practice?
Mark Germack practices at 8015 Se 28th St Ste 205 Suite 205, Mercer Island, WA 98040-2910. Mark Germack also practices at 435 E Sunset Way, Issaquah, WA 98027. Mark Germack's primary practice is CORE Endodontics in Mercer Island, Washington. Dmand AI also links Mark Germack to 1 physician office.
What is Mark Earl Germack's office phone number?
The practice phone on file for Mark Germack is (206) 913-2599.
What is Mark Earl Germack's medical license number?
Mark Germack holds Washington license DE00010298.
Has Mark Earl Germack received payments from drug or device companies?
CMS Open Payments shows $32 in general payments to Mark Germack from 1 company from 2025 to 2025. The largest total came from NuSmile, Ltd.
How long has Mark Earl Germack been practicing?
Mark Germack's NPI was assigned in 2007.
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