Gregory L. McEwen, DDS
- Part D claims, 2024
- 133
- Industry payments
- $43
- Affiliated sites
- 4
- Medical group
- 1
- State license
- 1
- Practice address
- 3581 Palmer Dr 300, Cameron Park, CA 95682
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Marshall Medical Center - Diagnostic Imaging - Ultrasound Cameron Park - HOPD
Acute Care Hospital outpatient department · Cameron Park, California
Find Gregory McEwen'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.
Gregory L. McEwen is a dentist in Cameron Park, California
Gregory McEwen practices at Marshall Medical Center - Diagnostic Imaging - Ultrasound Cameron Park - HOPD in Cameron Park, California.
Gregory McEwen's NPI, 1326108721, was assigned on December 8, 2006. Gregory McEwen holds California license 036870.
- NPI
- 1326108721NPI Registry (opens in a new tab)
- NPI enumeration date
- December 8, 2006
- NPI status
- Active
- 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
Gregory L. McEwen practices at Marshall Medical Center - Diagnostic Imaging - Ultrasound Cameron Park - HOPD in Cameron Park, California
Gregory McEwen's primary practice is Marshall Medical Center - Diagnostic Imaging - Ultrasound Cameron Park - HOPD, at 3581 Palmer Dr 300, Cameron Park, CA 95682.
- Marshall Medical Center - Diagnostic Imaging - Ultrasound Cameron Park - HOPD3581 Palmer Dr 300, Cameron Park, CA 95682
Source: Dmand AI Affiliation Data
Gregory L. McEwen is affiliated with 4 sites of care and 1 medical group
Gregory McEwen's primary practice is Marshall Medical Center - Diagnostic Imaging - Ultrasound Cameron Park - HOPD in Cameron Park, California. Dmand AI also links Gregory McEwen to 2 hospital outpatient departments, 1 group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gregory L. McEwen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory McEwen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Marshall Medical Center - Diagnostic Imaging - Ultrasound Cameron Park - HOPD | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Gregory L. McEwen is one of 6,282 dentists in California
Dentist is Gregory McEwen's primary specialty in the NPI Registry, under taxonomy code 122300000X. Gregory McEwen is licensed in California.
Specialties and state licenses
- Dentist, CaliforniaPrimary
Dentists near Gregory McEwen
Counts of dentists 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
Gregory L. McEwen's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Gregory McEwen's median patient age at 55, with 100% women.
Gregory McEwen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women100%
- Men0%
Source: Dmand AI Patient Panel Data
Gregory L. McEwen wrote 133 Medicare Part D claims in 2024
In 2024, Gregory McEwen wrote 133 Medicare Part D claims for 43 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in Gregory McEwen's Part D claims, 2024
- Opioids23%31 of 133 claims
- Antibiotics57%76 of 133 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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Gregory L. McEwen received $43 in industry payments in 2025
CMS Open Payments shows 1 general payment to Gregory McEwen from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Solventum Corporation paid the most, $43.
Companies that paid Gregory McEwen 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 Gregory L. McEwen'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 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 Gregory L. McEwen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gregory L. McEwen's NPI number?
Gregory L. McEwen's NPI number is 1326108721. It was assigned on December 8, 2006, and it is active in the NPI Registry.
What does Gregory L. McEwen specialize in?
Gregory L. McEwen is a dentist in Cameron Park, California. The primary specialty in the NPI Registry is Dentist (taxonomy code 122300000X).
Where does Gregory L. McEwen practice?
Gregory McEwen practices at 3581 Palmer Dr 300, Cameron Park, CA 95682. Gregory McEwen's primary practice is Marshall Medical Center - Diagnostic Imaging - Ultrasound Cameron Park - HOPD in Cameron Park, California. Dmand AI also links Gregory McEwen to 2 hospital outpatient departments, 1 group practice or clinic and 1 medical group.
What is Gregory L. McEwen's medical license number?
Gregory McEwen holds California license 036870.
Has Gregory L. McEwen received payments from drug or device companies?
CMS Open Payments shows $43 in general payments to Gregory McEwen from 1 company from 2025 to 2025. The largest total came from Solventum Corporation.
How long has Gregory L. McEwen been practicing?
Gregory McEwen's NPI was assigned in 2006.
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