Tish Villanueva, MD
NPI 1891953915 · Internal Medicine Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tish Villanueva, MD is a Internal Medicine Physician provider in Los Angeles, CA (NPI 1891953915).
Provider details
- NPI number
- 1891953915
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A103957 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 93 | 34 |
| Methimazole | 74 | 28 |
| Testosterone | 19 | — |
| Insulin Glargine-Yfgn | 15 | — |
| Insulin Lisprobrand: Humalog | 12 | — |
| Insulin Lisprobrand: Humalog Kwikpen U-100 | 12 | — |
| Hydrocortisone | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-05-27
- Last updated
- 2021-12-17
- Certified
- 2021-12-17
Frequently asked questions
- What is Tish Villanueva's NPI number?
- Tish Villanueva's National Provider Identifier (NPI) is 1891953915, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tish Villanueva's specialty?
- Tish Villanueva is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tish Villanueva located?
- Tish Villanueva's practice location on file with NPPES is 4950 W Sunset Blvd, Los Angeles, CA 90027-5822.
- What is Tish Villanueva's phone number?
- The practice phone number listed in the NPPES registry for Tish Villanueva is (800) 954-8000.
- Does Tish Villanueva accept Medicare?
- Tish Villanueva is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tish Villanueva's NPI active?
- Yes — Tish Villanueva's NPI (1891953915) is active in the NPPES registry as of the last update on 2021-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.