Stacey Tien, P.A. - C
NPI 1770583056 · Vascular Surgery Physician · Orange, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stacey Tien, P.A. - C is a Vascular Surgery Physician provider in Orange, CA (NPI 1770583056).
Provider details
- NPI number
- 1770583056
- Entity type
- Individual
- Primary specialty
- Vascular Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- P.A. - C
- Sex
- Female
- Sole proprietor
- No
- License
- PA16952 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 84 | 74 |
| Diazepam | 67 | 54 |
| Lorazepam | 43 | 37 |
| Apixabanbrand: Eliquis | 23 | 11 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 17 | — |
| Cephalexin | 14 | 13 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$539 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-28
- Last updated
- 2019-06-06
Frequently asked questions
- What is Stacey Tien's NPI number?
- Stacey Tien's National Provider Identifier (NPI) is 1770583056, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stacey Tien's specialty?
- Stacey Tien is listed in the NPPES registry with a primary specialty of Vascular Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Stacey Tien located?
- Stacey Tien's practice location on file with NPPES is 1140 W La Veta Ave, Orange, CA 92868-4225.
- What is Stacey Tien's phone number?
- The practice phone number listed in the NPPES registry for Stacey Tien is (714) 560-4450.
- Does Stacey Tien accept Medicare?
- Stacey Tien is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stacey Tien's NPI active?
- Yes — Stacey Tien's NPI (1770583056) is active in the NPPES registry as of the last update on 2019-06-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.