Gregory John Herd, DDS
- Part D claims, 2024
- 29
- Industry payments
- $25
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2006
- Practice address
- 30212 Tomas Suite 330 Suite 330, Rancho Santa Margarita, CA 92688
- Practice phone
- Call (949) 858-5147
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Greg J. Herd, DDS
Physician office · Rancho Santa Margarita, California
Find Gregory Herd'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 John Herd is a general practice dentistry in Rancho Santa Margarita, California
Gregory Herd practices at Greg J. Herd, DDS in Rancho Santa Margarita, California.
Gregory Herd's NPI, 1265446504, was assigned on July 29, 2006. Gregory Herd holds California license 38195.
- NPI
- 1265446504NPI Registry (opens in a new tab)
- NPI enumeration date
- July 29, 2006
- NPI status
- Active
- Practice phone
- (949) 858-5147
- 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 John Herd practices at Greg J. Herd, DDS in Rancho Santa Margarita, California
Gregory Herd's primary practice is Greg J. Herd, DDS, at 30212 Tomas Suite 330 Suite 330, Rancho Santa Margarita, CA 92688. The practice phone is (949) 858-5147.
- Greg J. Herd, DDS30212 Tomas Suite 330 Suite 330, Rancho Santa Margarita, CA 92688Phone(949) 858-5147
Source: Dmand AI Affiliation Data
Gregory John Herd is affiliated with 1 site of care
Gregory Herd's primary practice is Greg J. Herd, DDS in Rancho Santa Margarita, California.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gregory John Herd's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gregory Herd practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greg J. Herd, DDS | Available with a free account |
Source: Dmand AI Technology Install Data
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Gregory John Herd is one of 7,627 general practice dentistrys in California
General practice is Gregory Herd's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. Gregory Herd is licensed in California.
Specialties and state licenses
- General practice dentistry, CaliforniaPrimary
General practice dentistrys near Gregory Herd
Counts of general practice dentistrys 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 John Herd's patients have a median age of 76
Across all payers, Dmand AI patient panel data puts Gregory Herd's median patient age at 76, with 0% women.
Gregory Herd's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 76
Patient panel by sex, all payers
- Women0%
- Men100%
Source: Dmand AI Patient Panel Data
Gregory John Herd wrote 29 Medicare Part D claims in 2024
In 2024, Gregory Herd wrote 29 Medicare Part D claims for 18 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in Gregory Herd's Part D claims, 2024
- Antibiotics62%18 of 29 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
For MedTech and pharma teams
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Gregory John Herd received $25 in industry payments in 2025
CMS Open Payments shows 1 general payment to Gregory Herd from 1 drug or device company in 2025. Entertainment make up the largest share, 100% of the total. Keystone Dental Inc. paid the most, $25.
Companies that paid Gregory Herd 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 John Herd'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 John Herd
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 John Herd's NPI number?
Gregory John Herd's NPI number is 1265446504. It was assigned on July 29, 2006, and it is active in the NPI Registry.
What does Gregory John Herd specialize in?
Gregory John Herd is a general practice dentistry in Rancho Santa Margarita, California. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does Gregory John Herd practice?
Gregory Herd practices at 30212 Tomas Suite 330 Suite 330, Rancho Santa Margarita, CA 92688. Gregory Herd's primary practice is Greg J. Herd, DDS in Rancho Santa Margarita, California.
What is Gregory John Herd's office phone number?
The practice phone on file for Gregory Herd is (949) 858-5147.
What is Gregory John Herd's medical license number?
Gregory Herd holds California license 38195.
Has Gregory John Herd received payments from drug or device companies?
CMS Open Payments shows $25 in general payments to Gregory Herd from 1 company from 2025 to 2025. The largest total came from Keystone Dental Inc.
How long has Gregory John Herd been practicing?
Gregory Herd's NPI was assigned in 2006.
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