Synthesis Medical Specialties, P.C.
NPI 1558557983 · Geriatric Medicine (Internal Medicine) Physician · Fenton, MI
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Synthesis Medical Specialties, P.C. is a Geriatric Medicine (Internal Medicine) Physician organization in Fenton, MI (NPI 1558557983).
Provider details
- NPI number
- 1558557983
- Entity type
- Organization
- Primary specialty
- Geriatric Medicine (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Matthew Weiss, Owner(810) 603-3702
- License
- JN010488 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
- 2007-09-19
- Last updated
- 2023-03-17
- Certified
- 2023-03-17
Frequently asked questions
- What is Synthesis Medical Specialties, P.C.'s NPI number?
- Synthesis Medical Specialties, P.C.'s National Provider Identifier (NPI) is 1558557983, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Synthesis Medical Specialties, P.C.?
- Synthesis Medical Specialties, P.C. is classified in the NPPES registry as Geriatric Medicine (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Synthesis Medical Specialties, P.C. located?
- Synthesis Medical Specialties, P.C.'s practice location on file with NPPES is 1 Chateaux Du Lac, Fenton, MI 48430-9140.
- What is Synthesis Medical Specialties, P.C.'s phone number?
- The practice phone number listed in the NPPES registry for Synthesis Medical Specialties, P.C. is (810) 603-3702.
- Does Synthesis Medical Specialties, P.C. accept Medicare?
- Synthesis Medical Specialties, P.C. is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Synthesis Medical Specialties, P.C.?
- The authorized official listed on Synthesis Medical Specialties, P.C.'s NPPES record is Matthew Weiss, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Synthesis Medical Specialties, P.C.'s NPI active?
- Yes — Synthesis Medical Specialties, P.C.'s NPI (1558557983) is active in the NPPES registry as of the last update on 2023-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.