James Hayashi
- Part D claims, 2024
- 17
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2014
- Practice address
- 490 Post St Ste 1220 Suite 1220, San Francisco, CA 94102-1309
- Practice phone
- Call (415) 986-0382
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hayashi & Duffala Dental Group
Dental practice · San Francisco, California
Find James Hayashi'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.
James Hayashi is a general practice dentistry in San Francisco, California
James Hayashi practices at Hayashi & Duffala Dental Group in San Francisco, California.
James Hayashi's NPI, 1922400019, was assigned on September 19, 2014. James Hayashi holds California license 30915.
- NPI
- 1922400019NPI Registry (opens in a new tab)
- NPI enumeration date
- September 19, 2014
- NPI status
- Active
- Practice phone
- (415) 986-0382
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
James Hayashi practices at Hayashi & Duffala Dental Group in San Francisco, California
James Hayashi's primary practice is Hayashi & Duffala Dental Group, at 490 Post St Ste 1220 Suite 1220, San Francisco, CA 94102-1309. The practice phone is (415) 986-0382.
- Hayashi & Duffala Dental Group490 Post St Ste 1220 Suite 1220, San Francisco, CA 94102-1309Phone(415) 986-0382
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
James Hayashi is affiliated with 1 site of care and 1 medical group
James Hayashi's primary practice is Hayashi & Duffala Dental Group in San Francisco, California. Dmand AI also links James Hayashi to 1 medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at James Hayashi's practice
Dmand AI tracks the electronic health record (EHR) system at each site where James Hayashi practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hayashi & Duffala Dental Group | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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James Hayashi is one of 7,627 general practice dentistrys in California
General practice is James Hayashi's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. James Hayashi is licensed in California.
Specialties and state licenses
- General practice dentistry, CaliforniaPrimary
General practice dentistrys near James Hayashi
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
James Hayashi wrote 17 Medicare Part D claims in 2024
In 2024, James Hayashi wrote 17 Medicare Part D claims for 15 patients. 88% of them were for generic drugs.
James Hayashi's Part D claims by kind of drug, 2024
- Generic15 claims88%
- Brand-name and other2 claims12%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Sources for James Hayashi'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 James Hayashi
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is James Hayashi's NPI number?
James Hayashi's NPI number is 1922400019. It was assigned on September 19, 2014, and it is active in the NPI Registry.
What does James Hayashi specialize in?
James Hayashi is a general practice dentistry in San Francisco, California. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does James Hayashi practice?
James Hayashi practices at 490 Post St Ste 1220 Suite 1220, San Francisco, CA 94102-1309. James Hayashi's primary practice is Hayashi & Duffala Dental Group in San Francisco, California. Dmand AI also links James Hayashi to 1 medical group.
What is James Hayashi's office phone number?
The practice phone on file for James Hayashi is (415) 986-0382.
What is James Hayashi's medical license number?
James Hayashi holds California license 30915.
How long has James Hayashi been practicing?
James Hayashi's NPI was assigned in 2014.
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