Demitris Haldeos, MD
NPI 1780978601 · Preventive Medicine/Occupational Environmental Medicine Physician · Seattle, WA
Enrolled with Medicare as Practitioner - Preventive Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Demitris Haldeos, MD is a Preventive Medicine/Occupational Environmental Medicine Physician provider in Seattle, WA (NPI 1780978601).
Provider details
- NPI number
- 1780978601
- Entity type
- Individual
- Primary specialty
- Preventive Medicine/Occupational Environmental Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD60628117 (WA)
Specialties & taxonomies
- Preventive Medicine/Occupational Environmental Medicine PhysicianPrimary2083P0500XLicense MD60628117 (WA)
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
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
3 documented practice locations
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
Additional practice locations (2)
- 4800 College St SeLacey, WA 98503-4389Phone: (360) 493-4500Fax: (360) 412-6510
- 1927 25th Ave ESeattle, WA 98112-3009Phone: (631) 949-1803
Registry dates
- Enumerated
- 2011-06-08
- Last updated
- 2021-11-10
- Certified
- 2021-11-10
Frequently asked questions
- What is Demitris Haldeos's NPI number?
- Demitris Haldeos's National Provider Identifier (NPI) is 1780978601, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Demitris Haldeos's specialty?
- Demitris Haldeos is listed in the NPPES registry with a primary specialty of Preventive Medicine/Occupational Environmental Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Demitris Haldeos located?
- Demitris Haldeos's practice location on file with NPPES is 3223 1st Ave S, Seattle, WA 98134-1850.
- What is Demitris Haldeos's phone number?
- The practice phone number listed in the NPPES registry for Demitris Haldeos is (207) 662-7060.
- Does Demitris Haldeos accept Medicare?
- Demitris Haldeos is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Demitris Haldeos's NPI active?
- Yes — Demitris Haldeos's NPI (1780978601) is active in the NPPES registry as of the last update on 2021-11-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.