Chen Almacen
NPI 1851083877 · Occupational Therapist · Rocklin, CA
Enrolled with Medicare as Practitioner - Occupational Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Chen Almacen is a Occupational Therapist provider in Rocklin, CA (NPI 1851083877).
Provider details
- NPI number
- 1851083877
- Entity type
- Individual
- Primary specialty
- Occupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- OT24783 (CA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
3 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
4,249 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) |
|---|---|---|
| Therapy Procedure Using Functional Activities97530 | 1,177 | $33 |
| Therapy Procedure to Re-Educate Brain-To-Nerve-To-Muscle Function, Each 15 Minutes97112 | 1,043 | $25 |
| Training for Self-Care Or Home Management, Each 15 Minutes97535 | 965 | $25 |
| Therapy Procedure Using Exercise to Develop Strength, Endurance, Range of Motion, and Flexibility, Each 15 Minutes97110 | 903 | $23 |
| Therapy Procedure for a Range of Mental Processes, Initial 15 Minutes97129 | 146 | $23 |
| Evaluation for Occupational Therapy, Typically 30 Minutes97165 | 15 | $107 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-05-26
- Last updated
- 2023-05-26
- Certified
- 2023-05-26
Frequently asked questions
- What is Chen Almacen's NPI number?
- Chen Almacen's National Provider Identifier (NPI) is 1851083877, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Chen Almacen's specialty?
- Chen Almacen is listed in the NPPES registry with a primary specialty of Occupational Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Chen Almacen located?
- Chen Almacen's practice location on file with NPPES is 4435 Bonneville Cir, Rocklin, CA 95677-2887.
- What is Chen Almacen's phone number?
- The practice phone number listed in the NPPES registry for Chen Almacen is (310) 951-0822.
- Does Chen Almacen accept Medicare?
- Chen Almacen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Chen Almacen's NPI active?
- Yes — Chen Almacen's NPI (1851083877) is active in the NPPES registry as of the last update on 2023-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.