Jan Henstorf, MD
NPI 1891781621 · Orthopaedic Surgery Physician · Fremont, CA
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jan Henstorf, MD is a Orthopaedic Surgery Physician provider in Fremont, CA (NPI 1891781621).
Provider details
- NPI number
- 1891781621
- Entity type
- Individual
- Primary specialty
- Orthopaedic Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A448840 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
- 2005-09-27
- Last updated
- 2014-09-24
Frequently asked questions
- What is Jan Henstorf's NPI number?
- Jan Henstorf's National Provider Identifier (NPI) is 1891781621, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jan Henstorf's specialty?
- Jan Henstorf is listed in the NPPES registry with a primary specialty of Orthopaedic Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Jan Henstorf located?
- Jan Henstorf's practice location on file with NPPES is 38690 Stivers St, Fremont, CA 94536-5279.
- What is Jan Henstorf's phone number?
- The practice phone number listed in the NPPES registry for Jan Henstorf is (510) 248-1040.
- Does Jan Henstorf accept Medicare?
- Jan Henstorf is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jan Henstorf's NPI active?
- Yes — Jan Henstorf's NPI (1891781621) is active in the NPPES registry as of the last update on 2014-09-24.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.