Wendy Perdomo Pena, M.D.
NPI 1659934412 · Rheumatology Physician · Mountain View, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Wendy Perdomo Pena, M.D. is a Rheumatology Physician provider in Mountain View, CA (NPI 1659934412).
Provider details
- NPI number
- 1659934412
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MT229747 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
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
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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 56 | 24 |
| Hydroxychloroquine Sulfate | 37 | 16 |
| Methotrexate Sodiumbrand: Methotrexate | 25 | — |
| Diclofenac Sodium | 20 | — |
| Tocilizumabbrand: Actemra Actpen | 19 | — |
| Mycophenolate Mofetil | 19 | — |
| Omeprazole | 17 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-04-17
- Last updated
- 2025-10-17
- Certified
- 2025-10-17
Frequently asked questions
- What is Wendy Perdomo Pena's NPI number?
- Wendy Perdomo Pena's National Provider Identifier (NPI) is 1659934412, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Wendy Perdomo Pena's specialty?
- Wendy Perdomo Pena is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Wendy Perdomo Pena located?
- Wendy Perdomo Pena's practice location on file with NPPES is 2495 Hospital Dr Ste 450, Mountain View, CA 94040-4171.
- What is Wendy Perdomo Pena's phone number?
- The practice phone number listed in the NPPES registry for Wendy Perdomo Pena is (408) 871-3400.
- Does Wendy Perdomo Pena accept Medicare?
- Wendy Perdomo Pena is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Wendy Perdomo Pena's NPI active?
- Yes — Wendy Perdomo Pena's NPI (1659934412) is active in the NPPES registry as of the last update on 2025-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.