Gianh Nguyen Portnoy, DDS
- Part D claims, 2024
- 59
- Affiliated sites
- 1
- State license
- 1
- Year NPI issued
- 2007
- Practice address
- 1738 Hamilton Rd, Okemos, MI 48864
- Practice phone
- Call (517) 349-3266
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Portnoy and Tu, DDS, PC Family Dentistry
Physician office · Okemos, Michigan
Find Gianh Portnoy'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.
Gianh Nguyen Portnoy is a general practice dentistry in Okemos, Michigan
Gianh Portnoy practices at Portnoy and Tu, DDS, PC Family Dentistry in Okemos, Michigan.
Gianh Portnoy's NPI, 1336363993, was assigned on April 12, 2007. Gianh Portnoy holds Michigan license 2901018167.
- NPI
- 1336363993NPI Registry (opens in a new tab)
- NPI enumeration date
- April 12, 2007
- NPI status
- Active
- Practice phone
- (517) 349-3266
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Gianh Nguyen Portnoy practices at Portnoy and Tu, DDS, PC Family Dentistry in Okemos, Michigan
Gianh Portnoy's primary practice is Portnoy and Tu, DDS, PC Family Dentistry, at 1738 Hamilton Rd, Okemos, MI 48864. The practice phone is (517) 349-3266.
- Portnoy and Tu, DDS, PC Family Dentistry1738 Hamilton Rd, Okemos, MI 48864Phone(517) 349-3266
Source: Dmand AI Affiliation Data
Gianh Nguyen Portnoy is affiliated with 1 site of care
Gianh Portnoy's primary practice is Portnoy and Tu, DDS, PC Family Dentistry in Okemos, Michigan.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Gianh Nguyen Portnoy's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Gianh Portnoy practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Portnoy and Tu, DDS, PC Family Dentistry | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across each health system and 6.2K+ hospitals, with verified contacts in the same login.
Gianh Nguyen Portnoy is one of 2,212 general practice dentistrys in Michigan
General practice is Gianh Portnoy's primary specialty in the NPI Registry, under taxonomy code 1223G0001X. Gianh Portnoy is licensed in Michigan.
Specialties and state licenses
- General practice dentistry, MichiganPrimary
General practice dentistrys near Gianh Portnoy
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
Gianh Nguyen Portnoy wrote 59 Medicare Part D claims in 2024
In 2024, Gianh Portnoy wrote 59 Medicare Part D claims for 40 patients. 98% of them were for generic drugs.
Gianh Portnoy's Part D claims by kind of drug, 2024
- Generic58 claims98%
- Brand-name and other1 claims2%
Drug classes CMS tracks in Gianh Portnoy's Part D claims, 2024
- Antibiotics68%40 of 59 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
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 Gianh Nguyen Portnoy'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 |
| 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 Gianh Nguyen Portnoy
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Gianh Nguyen Portnoy's NPI number?
Gianh Nguyen Portnoy's NPI number is 1336363993. It was assigned on April 12, 2007, and it is active in the NPI Registry.
What does Gianh Nguyen Portnoy specialize in?
Gianh Nguyen Portnoy is a general practice dentistry in Okemos, Michigan. The primary specialty in the NPI Registry is General Practice Dentistry (taxonomy code 1223G0001X).
Where does Gianh Nguyen Portnoy practice?
Gianh Portnoy practices at 1738 Hamilton Rd, Okemos, MI 48864. Gianh Portnoy's primary practice is Portnoy and Tu, DDS, PC Family Dentistry in Okemos, Michigan.
What is Gianh Nguyen Portnoy's office phone number?
The practice phone on file for Gianh Portnoy is (517) 349-3266.
What is Gianh Nguyen Portnoy's medical license number?
Gianh Portnoy holds Michigan license 2901018167.
How long has Gianh Nguyen Portnoy been practicing?
Gianh Portnoy's NPI was assigned in 2007.
Selling to general practice practices?
See general practice dentistrys in Michigan by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card