Mark Halonen, D.O.
NPI 1194899609 · Family Medicine Physician · St. Clair Shores, MI
Mark Halonen, D.O. is a Family Medicine Physician provider in St. Clair Shores, MI (NPI 1194899609).
Provider details
- NPI number
- 1194899609
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- 5101007876 (MI)
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
19 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
- 2006-11-17
- Last updated
- 2007-07-08
Frequently asked questions
- What is Mark Halonen's NPI number?
- Mark Halonen's National Provider Identifier (NPI) is 1194899609, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Halonen's specialty?
- Mark Halonen is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Halonen located?
- Mark Halonen's practice location on file with NPPES is Henry Ford Health System, St. Clair Shores, MI 48080.
- What is Mark Halonen's phone number?
- The practice phone number listed in the NPPES registry for Mark Halonen is (586) 774-7800.
- Is Mark Halonen's NPI active?
- Yes — Mark Halonen's NPI (1194899609) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.