CONSTANCE DARUTHAYAN HUYNH PA-C
NPI 1528343555
Physician Assistant in Stanford, CA
About Constance Daruthayan Huynh Pa-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CONSTANCE DARUTHAYAN HUYNH PA-C (NPI 1528343555) is an individual physician assistant in Stanford, California, licensed in California (58551) and active in the NPI registry since October 2011. She is enrolled in Medicare PECOS, maintains a secondary practice location in Oakland, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Constance Daruthayan Huynh Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94305 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
STANFORD, CA 94305
STANFORD, CA 94305
STANFORD, CA 94305
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Constance Huynh's NPI number?
The NPI number for Constance Huynh is 1528343555. It was assigned to this individual provider in the NPPES registry on October 21, 2011. The provider is also known as Constance Estipona Daruthayan Pa-C, Mph.
Where is Constance Huynh located?
Constance Huynh practices at 300 Pasteur Dr, Stanford, CA 94305. The listed phone number is (650) 723-4000.
What is Constance Huynh's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is Constance Huynh enrolled in Medicare?
Yes. Constance Huynh is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
When was this NPI record last updated?
The NPPES record for Constance Huynh was last updated on December 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Constance Daruthayan Huynh, PA-C · NPI 1528343555
Physician Assistant physician in Stanford, California. Individual provider, active in the CMS NPPES registry since October 21, 2011.
## Identity
- **NPI:** 1528343555 (Entity type: Individual)
- **Enumerated:** October 21, 2011
- **Primary specialty:** Physician Assistant · taxonomy 363A00000X
- **State license:** 58551 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 PASTEUR DR, Stanford, CA 94305-2200
- **Phone:** (650) 723-4000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** December 19, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1528343555) · Data from the CMS NPPES public registry.