Mark Winchester, M.D.
NPI 1780670422 · Cardiovascular Disease Physician · Sacramento, CA
Mark Winchester, M.D. is a Cardiovascular Disease Physician provider in Sacramento, CA (NPI 1780670422).
Provider details
- NPI number
- 1780670422
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G34163 (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
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
- 2007-07-12
Frequently asked questions
- What is Mark Winchester's NPI number?
- Mark Winchester's National Provider Identifier (NPI) is 1780670422, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Winchester's specialty?
- Mark Winchester is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Winchester located?
- Mark Winchester's practice location on file with NPPES is 5301 F St, Sacramento, CA 95819-3226.
- What is Mark Winchester's phone number?
- The practice phone number listed in the NPPES registry for Mark Winchester is (916) 733-1788.
- Is Mark Winchester's NPI active?
- Yes — Mark Winchester's NPI (1780670422) is active in the NPPES registry as of the last update on 2007-07-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.