Dr Mark D Winchester MD PLLC
NPI 1518110261 · Family Medicine Physician · Blanchard, OK
Dr Mark D Winchester MD PLLC is a Family Medicine Physician organization in Blanchard, OK (NPI 1518110261).
Provider details
- NPI number
- 1518110261
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Mark Winchester, Physician/Owner(405) 485-8100
- License
- 17303 (OK)
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
17 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
- Mark Winchester, M.D.
Registry dates
- Enumerated
- 2008-10-28
- Last updated
- 2008-10-28
Frequently asked questions
- What is Dr Mark D Winchester MD PLLC's NPI number?
- Dr Mark D Winchester MD PLLC's National Provider Identifier (NPI) is 1518110261, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Dr Mark D Winchester MD PLLC?
- Dr Mark D Winchester MD PLLC is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dr Mark D Winchester MD PLLC located?
- Dr Mark D Winchester MD PLLC's practice location on file with NPPES is 1019 N Council Ave, Blanchard, OK 73010-8003.
- What is Dr Mark D Winchester MD PLLC's phone number?
- The practice phone number listed in the NPPES registry for Dr Mark D Winchester MD PLLC is (405) 485-8100.
- Who is the authorized official for Dr Mark D Winchester MD PLLC?
- The authorized official listed on Dr Mark D Winchester MD PLLC's NPPES record is Mark Winchester, Physician/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Dr Mark D Winchester MD PLLC's NPI active?
- Yes — Dr Mark D Winchester MD PLLC's NPI (1518110261) is active in the NPPES registry as of the last update on 2008-10-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.