IndividualActive
Gregory Makris, M.D.
NPI 1689774424 · Internal Medicine Physician · Troy, MI
Gregory Makris, M.D. is a Internal Medicine Physician provider in Troy, MI (NPI 1689774424).
Provider details
- NPI number
- 1689774424
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 4301082747 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(90/100 index)
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
4600 Investment Dr
Ste 300
Troy, MI 48098-6365
Phone: (248) 267-5000
Street-level locationGet directions
Mailing address
4600 Investment Dr
Troy, MI 48098-6365
Registry dates
- Enumerated
- 2006-09-22
- Last updated
- 2008-02-25
Frequently asked questions
- What is Gregory Makris's NPI number?
- Gregory Makris's National Provider Identifier (NPI) is 1689774424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Makris's specialty?
- Gregory Makris is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Makris located?
- Gregory Makris's practice location on file with NPPES is 4600 Investment Dr, Troy, MI 48098-6365.
- What is Gregory Makris's phone number?
- The practice phone number listed in the NPPES registry for Gregory Makris is (248) 267-5000.
- Is Gregory Makris's NPI active?
- Yes — Gregory Makris's NPI (1689774424) is active in the NPPES registry as of the last update on 2008-02-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.