Theresa Tran, NP-C
NPI 1568939833 · Family Nurse Practitioner · Tustin, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Theresa Tran, NP-C is a Family Nurse Practitioner provider in Tustin, CA (NPI 1568939833).
Provider details
- NPI number
- 1568939833
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- NP95010331 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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 · 44 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 128 | 65 |
| Fluticasone Propionate | 125 | 52 |
| Amlodipine Besylate | 97 | 44 |
| Metformin Hcl | 74 | 29 |
| Losartan Potassium | 63 | 29 |
| Gabapentin | 63 | 25 |
| Lisinopril | 59 |
Practice location
Mailing address
Additional practice locations (2)
- 9918 Katella Ave Ste A-CAnaheim, CA 92804-6465Phone: (714) 644-9494Fax: (714) 644-9894
- 11180 Warner Ave Ste 353Fountain Valley, CA 92708-7516Phone: (714) 968-6789Fax: (714) 202-2626
Registry dates
- Enumerated
- 2018-10-25
- Last updated
- 2025-10-23
- Certified
- 2025-10-23
Frequently asked questions
- What is Theresa Tran's NPI number?
- Theresa Tran's National Provider Identifier (NPI) is 1568939833, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Theresa Tran's specialty?
- Theresa Tran is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Theresa Tran located?
- Theresa Tran's practice location on file with NPPES is 661 W 1st St Ste G, Tustin, CA 92780-2939.
- What is Theresa Tran's phone number?
- The practice phone number listed in the NPPES registry for Theresa Tran is (714) 665-9890.
- Does Theresa Tran accept Medicare?
- Theresa Tran is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Theresa Tran's NPI active?
- Yes — Theresa Tran's NPI (1568939833) is active in the NPPES registry as of the last update on 2025-10-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.