Joseph Mack, MD
NPI 1669581880 · Internal Medicine Physician · Marietta, OH
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joseph Mack, MD is a Internal Medicine Physician provider in Marietta, OH (NPI 1669581880).
Provider details
- NPI number
- 1669581880
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 35075546 (OH)
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
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 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 (1)
- 1106 Colegate DrMarietta, OH 45750-1323Phone: (740) 374-7700Fax: (740) 374-7701
Registry dates
- Enumerated
- 2006-08-30
- Last updated
- 2021-07-22
- Certified
- 2021-07-22
Frequently asked questions
- What is Joseph Mack's NPI number?
- Joseph Mack's National Provider Identifier (NPI) is 1669581880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joseph Mack's specialty?
- Joseph Mack is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joseph Mack located?
- Joseph Mack's practice location on file with NPPES is 401 Matthew St, Marietta, OH 45750-1635.
- What is Joseph Mack's phone number?
- The practice phone number listed in the NPPES registry for Joseph Mack is (740) 376-1994.
- Does Joseph Mack accept Medicare?
- Joseph Mack is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joseph Mack's NPI active?
- Yes — Joseph Mack's NPI (1669581880) is active in the NPPES registry as of the last update on 2021-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.