Stephen P Markus MD PC
NPI 1285809525 · Family Medicine Physician · Bellevue, WA
Stephen P Markus MD PC is a Family Medicine Physician organization in Bellevue, WA (NPI 1285809525).
Provider details
- NPI number
- 1285809525
- Entity type
- Organization
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Karen Samson, Billing(425) 644-6048
- License
- MD00021837 (WA)
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
18 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
- 2008-04-28
- Last updated
- 2008-04-28
Frequently asked questions
- What is Stephen P Markus MD PC's NPI number?
- Stephen P Markus MD PC's National Provider Identifier (NPI) is 1285809525, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Stephen P Markus MD PC?
- Stephen P Markus MD PC is classified in the NPPES registry as Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephen P Markus MD PC located?
- Stephen P Markus MD PC's practice location on file with NPPES is 1540 140th Ave Ne, Bellevue, WA 98005-4516.
- What is Stephen P Markus MD PC's phone number?
- The practice phone number listed in the NPPES registry for Stephen P Markus MD PC is (425) 644-6048.
- Who is the authorized official for Stephen P Markus MD PC?
- The authorized official listed on Stephen P Markus MD PC's NPPES record is Karen Samson, Billing. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Stephen P Markus MD PC's NPI active?
- Yes — Stephen P Markus MD PC's NPI (1285809525) is active in the NPPES registry as of the last update on 2008-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.