Crystal I. Chen, OD
- Part D claims, 2024
- 330
- Hospital affiliations
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2008
- Practice address
- 222 W 39th Ave, San Mateo, CA 94403
- Practice phone
- Call (650) 573-2222
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Crystal Chen's professional email, personal email and mobile number
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Crystal I. Chen is an optometrist in San Mateo, California
Crystal Chen practices at San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California.
Crystal Chen's NPI, 1588841365, was assigned on January 24, 2008. Crystal Chen graduated from Ohio State University - College of Optometry in 1998. Crystal Chen holds California license 12114.
- NPI
- 1588841365NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4587733704
- NPI enumeration date
- January 24, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 573-2222
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Crystal I. Chen practices at San Mateo Medical Center in San Mateo, California
Crystal Chen's primary practice is San Mateo Medical Center, at 222 W 39th Ave, San Mateo, CA 94403 in San Mateo County. The practice phone is (650) 573-2222.
- San Mateo Medical Center222 W 39th Ave, San Mateo, CA 94403 · San Mateo CountyPhone(650) 573-2222
Source: Dmand AI Affiliation Data
Crystal I. Chen is affiliated with 2 sites of care and 1 medical group
Crystal Chen's primary practice is San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California. The medical group on file is San Mateo Medical Center. Dmand AI also links Crystal Chen to 1 more skilled nursing facility, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Crystal I. Chen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Crystal Chen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| San Mateo Medical Center | Available with a free account |
| +1 more affiliated site | 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 County of San Mateo, California and 6.2K+ hospitals, with verified contacts in the same login.
Crystal I. Chen is one of 7,206 optometrists in California
Optometrist is Crystal Chen's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Crystal Chen is licensed in California.
Specialties and state licenses
- Optometrist, CaliforniaPrimary
Optometrists near Crystal Chen
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
Crystal I. Chen's patients have a median age of 46
Across all payers, Dmand AI patient panel data puts Crystal Chen's median patient age at 46, with 58% women.
Crystal Chen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 46
Patient panel by sex, all payers
- Women58%
- Men41%
Source: Dmand AI Patient Panel Data
Crystal I. Chen wrote 330 Medicare Part D claims in 2024
In 2024, Crystal Chen wrote 330 Medicare Part D claims for 95 patients. 59% of them were for generic drugs.
Crystal Chen's Part D claims by kind of drug, 2024
- Generic195 claims59%
- Brand-name135 claims41%
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Crystal I. Chen takes part in Medicare
Crystal Chen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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.
Crystal I. Chen graduated from Ohio State University - College of Optometry
Crystal Chen graduated from Ohio State University - College of Optometry in 1998.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Crystal I. Chen'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 DataDmand AI Org Hierarchy 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Crystal I. Chen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Crystal I. Chen's NPI number?
Crystal I. Chen's NPI number is 1588841365. It was assigned on January 24, 2008, and it is active in the NPI Registry.
What does Crystal I. Chen specialize in?
Crystal I. Chen is an optometrist in San Mateo, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Crystal I. Chen practice?
Crystal Chen practices at 222 W 39th Ave, San Mateo, CA 94403. Crystal Chen's primary practice is San Mateo Medical Center in San Mateo, California, part of County of San Mateo, California. Dmand AI also links Crystal Chen to 1 skilled nursing facility.
What is Crystal I. Chen's office phone number?
The practice phone on file for Crystal Chen is (650) 573-2222.
What is Crystal I. Chen's medical license number?
Crystal Chen holds California license 12114.
Which hospitals is Crystal I. Chen affiliated with?
Crystal Chen practices at San Mateo Medical Center in San Mateo, California.
What medical group is Crystal I. Chen part of?
Crystal Chen is linked to San Mateo Medical Center.
Does Crystal I. Chen accept Medicare?
Yes. CMS lists Crystal Chen as accepting Medicare assignment.
Where did Crystal I. Chen go to medical school?
Crystal Chen graduated from Ohio State University - College of Optometry in 1998.
How long has Crystal I. Chen been practicing?
Crystal Chen graduated from medical school in 1998, 28 years ago.
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