Teresa Auyeung, MD
NPI 1780771154 · Family Medicine Physician · Vacaville, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Teresa Auyeung, MD is a Family Medicine Physician provider in Vacaville, CA (NPI 1780771154).
Provider details
- NPI number
- 1780771154
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- C50267 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
236 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 105 | $145 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 97 | $103 |
| Administration of Influenza Virus VaccineG0008 | 19 | $37 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 15 | $139 |
Typical Medicare-allowed amounts for these services range $37–$145 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 14 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 33 | 12 |
| Pantoprazole Sodium | 33 | — |
| Gabapentin | 30 | — |
| Atorvastatin Calcium | 26 | — |
| Levothyroxine Sodium | 24 | — |
| Ibuprofen | 19 | — |
| Lisinopril | 18 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-06
- Last updated
- 2015-06-29
Frequently asked questions
- What is Teresa Auyeung's NPI number?
- Teresa Auyeung's National Provider Identifier (NPI) is 1780771154, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Teresa Auyeung's specialty?
- Teresa Auyeung is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Teresa Auyeung located?
- Teresa Auyeung's practice location on file with NPPES is 770 Mason St, Vacaville, CA 95688-4646.
- What is Teresa Auyeung's phone number?
- The practice phone number listed in the NPPES registry for Teresa Auyeung is (707) 454-5800.
- Does Teresa Auyeung accept Medicare?
- Teresa Auyeung is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Teresa Auyeung's NPI active?
- Yes — Teresa Auyeung's NPI (1780771154) is active in the NPPES registry as of the last update on 2015-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.