Johns S. Mac Donald, MD PC
NPI 1548361249 · Internal Medicine Physician · Saint Johns, MI
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johns S. Mac Donald, MD PC is a Internal Medicine Physician organization in Saint Johns, MI (NPI 1548361249).
Provider details
- NPI number
- 1548361249
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- John Mac Donald, Owner(989) 224-0646
- License
- 4301038398 (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
- 2006-09-26
- Last updated
- 2010-07-09
Frequently asked questions
- What is Johns S. Mac Donald, MD PC's NPI number?
- Johns S. Mac Donald, MD PC's National Provider Identifier (NPI) is 1548361249, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Johns S. Mac Donald, MD PC?
- Johns S. Mac Donald, MD PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Johns S. Mac Donald, MD PC located?
- Johns S. Mac Donald, MD PC's practice location on file with NPPES is 110 W Higham St, Saint Johns, MI 48879-1559.
- What is Johns S. Mac Donald, MD PC's phone number?
- The practice phone number listed in the NPPES registry for Johns S. Mac Donald, MD PC is (989) 224-0646.
- Does Johns S. Mac Donald, MD PC accept Medicare?
- Johns S. Mac Donald, MD PC 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 Johns S. Mac Donald, MD PC?
- The authorized official listed on Johns S. Mac Donald, MD PC's NPPES record is John Mac Donald, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Johns S. Mac Donald, MD PC's NPI active?
- Yes — Johns S. Mac Donald, MD PC's NPI (1548361249) is active in the NPPES registry as of the last update on 2010-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.