Jeffery Grzechowiak
NPI 1770791071 · Physical Therapy Assistant · Concord, CA
Jeffery Grzechowiak is a Physical Therapy Assistant provider in Concord, CA (NPI 1770791071).
Provider details
- NPI number
- 1770791071
- Entity type
- Individual
- Primary specialty
- Physical Therapy AssistantRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 5518 (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 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-18
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jeffery Grzechowiak's NPI number?
- Jeffery Grzechowiak's National Provider Identifier (NPI) is 1770791071, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffery Grzechowiak's specialty?
- Jeffery Grzechowiak is listed in the NPPES registry with a primary specialty of Physical Therapy Assistant (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Jeffery Grzechowiak located?
- Jeffery Grzechowiak's practice location on file with NPPES is 1152 Linden Dr, Concord, CA 94520-4014.
- What is Jeffery Grzechowiak's phone number?
- The practice phone number listed in the NPPES registry for Jeffery Grzechowiak is (510) 724-8014.
- Is Jeffery Grzechowiak's NPI active?
- Yes — Jeffery Grzechowiak's NPI (1770791071) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.