Eric Tseng, OD
- Medicare patients, 2024
- 84
- Part D claims, 2024
- 266
- Industry payments
- $48
- Affiliated sites
- 1
- State license
- 1
- Practice address
- 9934 S Western Ave, Chicago, IL 60643
- Practice phone
- Call (773) 303-8279
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Eric Tseng O.D., Prof Corp.
Chicago, Illinois
Find Eric Tseng'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.
Eric Tseng is an optometrist in Chicago, Illinois
Eric Tseng practices at Eric Tseng O.D., Prof Corp. in Chicago, Illinois.
Eric Tseng's NPI, 1629233580, was assigned on July 21, 2008. Eric Tseng graduated from Illinois College of Optometry at Chicago in 2008. Eric Tseng holds Illinois license 046010071.
- NPI
- 1629233580NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870634033
- NPI enumeration date
- July 21, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (773) 303-8279
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Eric Tseng practices at Eric Tseng O.D., Prof Corp. in Chicago, Illinois
Eric Tseng's primary practice is Eric Tseng O.D., Prof Corp., at 9934 S Western Ave, Chicago, IL 60643 in Cook County. The practice phone is (773) 303-8279.
- Eric Tseng O.D., Prof Corp.9934 S Western Ave, Chicago, IL 60643 · Cook CountyPhone(773) 303-8279
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Eric Tseng is affiliated with 2 sites of care
Eric Tseng's primary practice is Eric Tseng O.D., Prof Corp. in Chicago, Illinois. Dmand AI also links Eric Tseng to 1 physician office, 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 Eric Tseng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Eric Tseng practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Eric Tseng O.D., Prof Corp. | 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 each health system and 6.2K+ hospitals, with verified contacts in the same login.
Eric Tseng is one of 2,194 optometrists in Illinois
Optometrist is Eric Tseng's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Eric Tseng is licensed in Illinois.
Specialties and state licenses
- Optometrist, IllinoisPrimary
Optometrists near Eric Tseng
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
Eric Tseng treated 84 Medicare patients in 2024, average age 66
CMS counts 84 Medicare patients who saw Eric Tseng in 2024. The largest group is 65 to 74, with 34 patients. 75% of them have high blood pressure, and 64% have high cholesterol. 65% are also on Medicaid. Their average risk score is 1.42, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Eric Tseng's median patient age at 65, with 67% women.
Eric Tseng's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Eric Tseng's Medicare patients by sex, 2024
- Women6476%
- Men2024%
Chronic conditions among Eric Tseng's Medicare patients, 2024
- High blood pressure75%
- High cholesterol64%
- Arthritis54%
- Diabetes38%
- Mood disorders26%
- Chronic kidney disease24%
- Depression24%
- Ischemic heart disease24%
Share of Medicare patients with each condition. A patient can have several.
Eric Tseng's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women67%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Eric Tseng wrote 266 Medicare Part D claims in 2024
In 2024, Eric Tseng wrote 266 Medicare Part D claims for 83 patients. 63% of them were for generic drugs.
Eric Tseng's Part D claims by kind of drug, 2024
- Generic167 claims63%
- Brand-name99 claims37%
Drug classes CMS tracks in Eric Tseng's Part D claims, 2024
- Antibiotics6%17 of 266 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
How Eric Tseng takes part in Medicare
Eric Tseng 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.
Eric Tseng received $48 in industry payments in 2025
CMS Open Payments shows 1 general payment to Eric Tseng 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, $48.
Companies that paid Eric Tseng the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Eric Tseng graduated from Illinois College of Optometry at Chicago
Eric Tseng graduated from Illinois College of Optometry at Chicago in 2008.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Eric Tseng'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 DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| 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) |
| Industry payments | Open Payments (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 Eric Tseng
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Eric Tseng's NPI number?
Eric Tseng's NPI number is 1629233580. It was assigned on July 21, 2008, and it is active in the NPI Registry.
What does Eric Tseng specialize in?
Eric Tseng is an optometrist in Chicago, Illinois. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Eric Tseng practice?
Eric Tseng practices at 9934 S Western Ave, Chicago, IL 60643. Eric Tseng's primary practice is Eric Tseng O.D., Prof Corp. in Chicago, Illinois. Dmand AI also links Eric Tseng to 1 physician office.
What is Eric Tseng's office phone number?
The practice phone on file for Eric Tseng is (773) 303-8279.
What is Eric Tseng's medical license number?
Eric Tseng holds Illinois license 046010071.
Does Eric Tseng accept Medicare?
Yes. CMS lists Eric Tseng as accepting Medicare assignment.
How many Medicare patients does Eric Tseng see?
CMS counts 84 Medicare patients who saw Eric Tseng in 2024, with an average age of 66.
Where did Eric Tseng go to medical school?
Eric Tseng graduated from Illinois College of Optometry at Chicago in 2008.
Has Eric Tseng received payments from drug or device companies?
CMS Open Payments shows $48 in general payments to Eric Tseng from 1 company from 2025 to 2025. The largest total came from CooperVision Inc.
How long has Eric Tseng been practicing?
Eric Tseng graduated from medical school in 2008, 18 years ago.
Selling to optometrist practices?
See optometrists in Illinois 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