Huan Guan, OD
- Industry payments
- $43
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2009
- Practice address
- 1 Shields Ave, Davis, CA 95616
- Practice phone
- Call (530) 752-2300
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Regents/ucdpbg/mat Fetal - Eye Care - Davis (Shields Ave)
Eye care practice · Davis, California
Find Huan Guan'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.
Huan Guan is an optometrist in Sacramento, California
Huan Guan practices at Regents/ucdpbg/mat Fetal - Eye Care - Davis (Shields Ave) in Davis, California.
Huan Guan's NPI, 1336379247, was assigned on July 27, 2009. Huan Guan holds California license OPT 13801 TLG.
- NPI
- 1336379247NPI Registry (opens in a new tab)
- NPI enumeration date
- July 27, 2009
- NPI status
- Active
- Practice phone
- (530) 752-2300
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Huan Guan practices in Davis and Sacramento
Huan Guan's primary practice is Regents/ucdpbg/mat Fetal - Eye Care - Davis (Shields Ave), at 1 Shields Ave, Davis, CA 95616. The practice phone is (530) 752-2300. The NPI Registry lists Huan Guan's practice address as 2315 Stockton Blvd, Sacramento, CA 95817.
- Regents/ucdpbg/mat Fetal - Eye Care - Davis (Shields Ave)Primary1 Shields Ave, Davis, CA 95616Phone(530) 752-2300
- NPI Registry address2315 Stockton Blvd, Sacramento, CA 95817 · Sacramento County
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Huan Guan is affiliated with 1 site of care and 1 medical group
Huan Guan's primary practice is Regents/ucdpbg/mat Fetal - Eye Care - Davis (Shields Ave) in Davis, California. The medical group on file is UC Davis Medical Group.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Huan Guan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Huan Guan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Regents/ucdpbg/mat Fetal - Eye Care - Davis (Shields Ave) | Available with a free account |
Source: Dmand AI Technology Install Data
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Huan Guan is one of 7,206 optometrists in California
Optometrist is Huan Guan's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Huan Guan is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Huan Guan
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
Huan Guan's patients have a median age of 28
Across all payers, Dmand AI patient panel data puts Huan Guan's median patient age at 28, with 50% women.
Huan Guan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 28
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Huan Guan received $43 in industry payments in 2025
CMS Open Payments shows 1 general payment to Huan Guan from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Johnson & Johnson Vision Care, Inc. paid the most, $43.
Companies that paid Huan Guan 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 Huan Guan'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 Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Huan Guan
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Huan Guan's NPI number?
Huan Guan's NPI number is 1336379247. It was assigned on July 27, 2009, and it is active in the NPI Registry.
What does Huan Guan specialize in?
Huan Guan is an optometrist in Sacramento, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Huan Guan practice?
Huan Guan practices at 1 Shields Ave, Davis, CA 95616. Huan Guan also practices at 2315 Stockton Blvd, Sacramento, CA 95817. Huan Guan's primary practice is Regents/ucdpbg/mat Fetal - Eye Care - Davis (Shields Ave) in Davis, California.
What is Huan Guan's office phone number?
The practice phone on file for Huan Guan is (530) 752-2300.
What is Huan Guan's medical license number?
Huan Guan holds California license OPT 13801 TLG.
What medical group is Huan Guan part of?
Huan Guan is linked to UC Davis Medical Group.
Has Huan Guan received payments from drug or device companies?
CMS Open Payments shows $43 in general payments to Huan Guan from 1 company from 2025 to 2025. The largest total came from Johnson & Johnson Vision Care, Inc.
How long has Huan Guan been practicing?
Huan Guan's NPI was assigned in 2009.
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