Tammy Vien, RN
- Affiliated sites
- 2
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2020
- Practice address
- 101 Callan Ave STE 105, San Leandro, CA 94577
- Practice phone
- Call (510) 357-7077
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Asian Health Services Pediatrics San Leandro
FQHC - Satellite Clinic · San Leandro, California
Find Tammy Vien'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.
Tammy Vien is a registered nurse in San Leandro, California
Tammy Vien practices at Asian Health Services Pediatrics San Leandro in San Leandro, California.
Tammy Vien's NPI, 1285234195, was assigned on October 29, 2020. Tammy Vien holds California license 95230893.
- NPI
- 1285234195NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789162447
- NPI enumeration date
- October 29, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (510) 357-7077
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 27
- Medical school graduation
- 2025
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Tammy Vien practices at Asian Health Services Pediatrics San Leandro in San Leandro, California
Tammy Vien's primary practice is Asian Health Services Pediatrics San Leandro, at 101 Callan Ave STE 105, San Leandro, CA 94577 in Alameda County. The practice phone is (510) 357-7077.
- Asian Health Services Pediatrics San Leandro101 Callan Ave STE 105, San Leandro, CA 94577 · Alameda CountyPhone(510) 357-7077
Source: Dmand AI Affiliation Data
Tammy Vien is affiliated with 2 sites of care and 1 medical group
Tammy Vien's primary practice is Asian Health Services Pediatrics San Leandro in San Leandro, California. The medical group on file is Asian Health Services. Dmand AI also links Tammy Vien to 1 more community health center, named with a free account. Tammy Vien's employer is on file too: a community health center (fqhc).
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Tammy Vien's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Tammy Vien practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Asian Health Services Pediatrics San Leandro | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Tammy Vien is one of 362 registered nurses in California
Registered nurse is Tammy Vien's primary specialty in the NPI Registry, under taxonomy code 163W00000X. Tammy Vien is licensed in California.
Specialties and state licenses
- Registered nurse, CaliforniaPrimary
Registered nurses near Tammy Vien
Counts of registered nurses 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
Tammy Vien's patients have a median age of 58
Across all payers, Dmand AI patient panel data puts Tammy Vien's median patient age at 58, with 50% women.
Tammy Vien's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 58
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
How Tammy Vien takes part in Medicare
Tammy Vien 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)
Sources for Tammy Vien'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 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) |
| 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 Tammy Vien
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Tammy Vien's NPI number?
Tammy Vien's NPI number is 1285234195. It was assigned on October 29, 2020, and it is active in the NPI Registry.
What does Tammy Vien specialize in?
Tammy Vien is a registered nurse in San Leandro, California. The primary specialty in the NPI Registry is Registered Nurse (taxonomy code 163W00000X).
Where does Tammy Vien practice?
Tammy Vien practices at 101 Callan Ave STE 105, San Leandro, CA 94577. Tammy Vien's primary practice is Asian Health Services Pediatrics San Leandro in San Leandro, California. Dmand AI also links Tammy Vien to 1 community health center.
What is Tammy Vien's office phone number?
The practice phone on file for Tammy Vien is (510) 357-7077.
What is Tammy Vien's medical license number?
Tammy Vien holds California license 95230893.
What medical group is Tammy Vien part of?
Tammy Vien is linked to Asian Health Services.
Does Tammy Vien accept Medicare?
Yes. CMS lists Tammy Vien as accepting Medicare assignment.
How long has Tammy Vien been practicing?
Tammy Vien graduated from medical school in 2025, 1 years ago.
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