Hien Pham
- Industry payments
- $49
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2016
- Practice address
- 631 N Frederick Ave, Gaithersburg, MD 20879
- Practice phone
- Call (301) 330-4972
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Hour Eyes
Gaithersburg, Maryland
Find Hien Pham'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.
Hien Pham is an optometrist in Gaithersburg, Maryland
Hien Pham practices at Hour Eyes in Gaithersburg, Maryland.
Hien Pham's NPI, 1073964359, was assigned on June 28, 2016. Hien Pham holds Maryland license TA2535.
- NPI
- 1073964359NPI Registry (opens in a new tab)
- NPI enumeration date
- June 28, 2016
- NPI status
- Active
- Practice phone
- (301) 330-4972
- 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 Practice Data
Hien Pham practices at Hour Eyes in Gaithersburg, Maryland
Hien Pham's primary practice is Hour Eyes, at 631 N Frederick Ave, Gaithersburg, MD 20879 in Montgomery County. The practice phone is (301) 330-4972.
- Hour Eyes631 N Frederick Ave, Gaithersburg, MD 20879 · Montgomery CountyPhone(301) 330-4972
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Hien Pham is affiliated with 2 sites of care and 1 medical group
Hien Pham's primary practice is Hour Eyes in Gaithersburg, Maryland. Dmand AI also links Hien Pham to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Hien Pham's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Hien Pham practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Hour Eyes | Available with a free account |
| +1 more site and 1 medical group | 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.
Hien Pham is one of 562 optometrists in Maryland
Optometrist is Hien Pham's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Hien Pham is licensed in Maryland.
Specialties and state licenses
- Optometrist, MarylandPrimary
Optometrists near Hien Pham
Counts of optometrists 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
Hien Pham's patients have a median age of 47
Across all payers, Dmand AI patient panel data puts Hien Pham's median patient age at 47, with 57% women.
Hien Pham's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 47
Patient panel by sex, all payers
- Women57%
- Men42%
Source: Dmand AI Patient Panel Data
Hien Pham received $49 in industry payments in 2025
CMS Open Payments shows 2 general payments to Hien Pham from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. CooperVision Inc. paid the most, $49.
Companies that paid Hien Pham 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 Hien Pham'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 Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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 Hien Pham
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Hien Pham's NPI number?
Hien Pham's NPI number is 1073964359. It was assigned on June 28, 2016, and it is active in the NPI Registry.
What does Hien Pham specialize in?
Hien Pham is an optometrist in Gaithersburg, Maryland. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Hien Pham practice?
Hien Pham practices at 631 N Frederick Ave, Gaithersburg, MD 20879. Hien Pham's primary practice is Hour Eyes in Gaithersburg, Maryland. Dmand AI also links Hien Pham to 1 group practice or clinic and 1 medical group.
What is Hien Pham's office phone number?
The practice phone on file for Hien Pham is (301) 330-4972.
What is Hien Pham's medical license number?
Hien Pham holds Maryland license TA2535.
Has Hien Pham received payments from drug or device companies?
CMS Open Payments shows $49 in general payments to Hien Pham from 1 company from 2025 to 2025. The largest total came from CooperVision Inc.
How long has Hien Pham been practicing?
Hien Pham's NPI was assigned in 2016.
Selling to optometrist practices?
See optometrists in Maryland 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