Mark Smalley, DO
NPI 1477512168 · Internal Medicine Physician · Saint Joseph, MI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Smalley, DO is a Internal Medicine Physician provider in Saint Joseph, MI (NPI 1477512168).
Provider details
- NPI number
- 1477512168
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- MS007105 (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
20 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
- 2006-03-21
- Last updated
- 2019-05-07
Frequently asked questions
- What is Mark Smalley's NPI number?
- Mark Smalley's National Provider Identifier (NPI) is 1477512168, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Smalley's specialty?
- Mark Smalley is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Smalley located?
- Mark Smalley's practice location on file with NPPES is 3950 Hollywood Rd, Saint Joseph, MI 49085-9159.
- What is Mark Smalley's phone number?
- The practice phone number listed in the NPPES registry for Mark Smalley is (269) 982-7840.
- Does Mark Smalley accept Medicare?
- Mark Smalley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Smalley's NPI active?
- Yes — Mark Smalley's NPI (1477512168) is active in the NPPES registry as of the last update on 2019-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.