Carol Treinen, MD
NPI 1396817136 · Physical Medicine & Rehabilitation Physician · Redwood City, CA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carol Treinen, MD is a Physical Medicine & Rehabilitation Physician provider in Redwood City, CA (NPI 1396817136).
Provider details
- NPI number
- 1396817136
- Entity type
- Individual
- Primary specialty
- Physical Medicine & Rehabilitation PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A63328 (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
19 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 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 77 | 33 |
| Meloxicam | 71 | 26 |
| Duloxetine Hcl | 50 | 17 |
| Baclofen | 25 | — |
| Prednisone | 18 | 17 |
| Ibuprofen | 15 | — |
| Tizanidine Hcl | 12 | — |
| Lamotrigine | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-15
- Last updated
- 2022-01-10
Frequently asked questions
- What is Carol Treinen's NPI number?
- Carol Treinen's National Provider Identifier (NPI) is 1396817136, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carol Treinen's specialty?
- Carol Treinen is listed in the NPPES registry with a primary specialty of Physical Medicine & Rehabilitation Physician (Allopathic & Osteopathic Physicians).
- Where is Carol Treinen located?
- Carol Treinen's practice location on file with NPPES is 1150 Veterans Blvd, Redwood City, CA 94063-2037.
- What is Carol Treinen's phone number?
- The practice phone number listed in the NPPES registry for Carol Treinen is (650) 299-2000.
- Does Carol Treinen accept Medicare?
- Carol Treinen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carol Treinen's NPI active?
- Yes — Carol Treinen's NPI (1396817136) is active in the NPPES registry as of the last update on 2022-01-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.