Mark Mastromonaco, MD
NPI 1659990059 · Family Medicine Physician · Saint Clair Shores, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Mastromonaco, MD is a Family Medicine Physician provider in Saint Clair Shores, MI (NPI 1659990059).
Provider details
- NPI number
- 1659990059
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4351046408 (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
6 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
- 2020-04-15
- Last updated
- 2020-04-15
- Certified
- 2020-04-15
Frequently asked questions
- What is Mark Mastromonaco's NPI number?
- Mark Mastromonaco's National Provider Identifier (NPI) is 1659990059, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Mastromonaco's specialty?
- Mark Mastromonaco is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Mastromonaco located?
- Mark Mastromonaco's practice location on file with NPPES is 21400 E 11 Mile Rd, Saint Clair Shores, MI 48081-1566.
- What is Mark Mastromonaco's phone number?
- The practice phone number listed in the NPPES registry for Mark Mastromonaco is (586) 498-4400.
- Does Mark Mastromonaco accept Medicare?
- Mark Mastromonaco is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Mastromonaco's NPI active?
- Yes — Mark Mastromonaco's NPI (1659990059) is active in the NPPES registry as of the last update on 2020-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.