Fred J Von Stieff MD a Professional Corporation
NPI 1568769412 · Addiction Medicine (Family Medicine) Physician · Concord, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Fred J Von Stieff MD a Professional Corporation is a Addiction Medicine (Family Medicine) Physician organization in Concord, CA (NPI 1568769412).
Provider details
- NPI number
- 1568769412
- Entity type
- Organization
- Primary specialty
- Addiction Medicine (Family Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Kris Del Monte, Administrator(925) 680-8933
- License
- G34928 (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
15 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
Other names (DBA / former)
- Doing business as
- Von Stieff Medical Group
Registry dates
- Enumerated
- 2011-02-11
- Last updated
- 2020-12-16
- Certified
- 2020-12-16
Frequently asked questions
- What is Fred J Von Stieff MD a Professional Corporation's NPI number?
- Fred J Von Stieff MD a Professional Corporation's National Provider Identifier (NPI) is 1568769412, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Fred J Von Stieff MD a Professional Corporation?
- Fred J Von Stieff MD a Professional Corporation is classified in the NPPES registry as Addiction Medicine (Family Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Fred J Von Stieff MD a Professional Corporation located?
- Fred J Von Stieff MD a Professional Corporation's practice location on file with NPPES is 2481 Pacheco St, Concord, CA 94520-2019.
- What is Fred J Von Stieff MD a Professional Corporation's phone number?
- The practice phone number listed in the NPPES registry for Fred J Von Stieff MD a Professional Corporation is (925) 680-8933.
- Does Fred J Von Stieff MD a Professional Corporation accept Medicare?
- Fred J Von Stieff MD a Professional Corporation is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Fred J Von Stieff MD a Professional Corporation?
- The authorized official listed on Fred J Von Stieff MD a Professional Corporation's NPPES record is Kris Del Monte, Administrator. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Fred J Von Stieff MD a Professional Corporation's NPI active?
- Yes — Fred J Von Stieff MD a Professional Corporation's NPI (1568769412) is active in the NPPES registry as of the last update on 2020-12-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.