Li Si Zeng, PA-C
- Affiliated sites
- 1
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2014
- Practice address
- 18035 Brookhurst St, Fountain Valley, CA 92708
- Practice phone
- Call (714) 433-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Tien T Nguyen M.D. Inc.
Fountain Valley, California
Find Li Zeng'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.
Li Si Zeng is a physician assistant in Fountain Valley, California
Li Zeng practices at Tien T Nguyen M.D. Inc. in Fountain Valley, California.
Li Zeng's NPI, 1083020606, was assigned on July 2, 2014. Li Zeng graduated from Touro Un College of Osteopathic Medicine, Vallejo in 2014. Li Zeng holds California license 51748.
- NPI
- 1083020606NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5496254005
- NPI enumeration date
- July 2, 2014
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 433-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 38
- Medical school graduation
- 2014
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Li Si Zeng practices at Tien T Nguyen M.D. Inc. in Fountain Valley, California
Li Zeng's primary practice is Tien T Nguyen M.D. Inc., at 18035 Brookhurst St, Fountain Valley, CA 92708 in Orange County. The practice phone is (714) 433-2000.
- Tien T Nguyen M.D. Inc.18035 Brookhurst St, Fountain Valley, CA 92708 · Orange CountyPhone(714) 433-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Li Si Zeng is affiliated with 2 sites of care and 2 medical groups
Li Zeng's primary practice is Tien T Nguyen M.D. Inc. in Fountain Valley, California. The medical group on file is Orange County Brain & Spine Group. Dmand AI also links Li Zeng to 1 more 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 Li Si Zeng's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Li Zeng practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tien T Nguyen M.D. Inc. | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Li Si Zeng is one of 2,381 physician assistants in California
Medical is Li Zeng's primary specialty in the NPI Registry, under taxonomy code 363AM0700X. Li Zeng is licensed in California.
Specialties and state licenses
- Medical physician assistant, CaliforniaPrimary
Physician assistants near Li Zeng
Counts of physician assistants 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
Li Si Zeng's patients have a median age of 65
Across all payers, Dmand AI patient panel data puts Li Zeng's median patient age at 65, with 62% women.
Li Zeng'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
- Women62%
- Men37%
Source: Dmand AI Patient Panel Data
How Li Si Zeng takes part in Medicare
Li Zeng 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)
Li Si Zeng graduated from Touro Un College of Osteopathic Medicine, Vallejo
Li Zeng graduated from Touro Un College of Osteopathic Medicine, Vallejo in 2014.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Li Si Zeng'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 |
| 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 Li Si Zeng
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Li Si Zeng's NPI number?
Li Si Zeng's NPI number is 1083020606. It was assigned on July 2, 2014, and it is active in the NPI Registry.
What does Li Si Zeng specialize in?
Li Si Zeng is a physician assistant in Fountain Valley, California. The primary specialty in the NPI Registry is Medical Physician Assistant (taxonomy code 363AM0700X).
Where does Li Si Zeng practice?
Li Zeng practices at 18035 Brookhurst St, Fountain Valley, CA 92708. Li Zeng's primary practice is Tien T Nguyen M.D. Inc. in Fountain Valley, California. Dmand AI also links Li Zeng to 1 group practice or clinic and 1 medical group.
What is Li Si Zeng's office phone number?
The practice phone on file for Li Zeng is (714) 433-2000.
What is Li Si Zeng's medical license number?
Li Zeng holds California license 51748.
What medical group is Li Si Zeng part of?
Li Zeng is linked to Orange County Brain & Spine Group. Dmand AI links Li Zeng to 1 more medical group.
Does Li Si Zeng accept Medicare?
Yes. CMS lists Li Zeng as accepting Medicare assignment.
Where did Li Si Zeng go to medical school?
Li Zeng graduated from Touro Un College of Osteopathic Medicine, Vallejo in 2014.
How long has Li Si Zeng been practicing?
Li Zeng graduated from medical school in 2014, 12 years ago.
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