Robert Mastroianni, MD
NPI 1023107844 · Family Medicine Physician · Makawao, HI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Mastroianni, MD is a Family Medicine Physician provider in Makawao, HI (NPI 1023107844).
Provider details
- NPI number
- 1023107844
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- MD10200 (HI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,646 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 818 | $130 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 417 | $16 |
| Advance Care Planning, First 30 Minutes99497 | 302 | $82 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 259 | $64 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 172 | $133 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-11
- Last updated
- 2018-03-13
Frequently asked questions
- What is Robert Mastroianni's NPI number?
- Robert Mastroianni's National Provider Identifier (NPI) is 1023107844, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Mastroianni's specialty?
- Robert Mastroianni is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Mastroianni located?
- Robert Mastroianni's practice location on file with NPPES is 81 Makawao Ave Ste 25, Makawao, HI 96768-8859.
- What is Robert Mastroianni's phone number?
- The practice phone number listed in the NPPES registry for Robert Mastroianni is (808) 573-8900.
- Does Robert Mastroianni accept Medicare?
- Robert Mastroianni is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Mastroianni's NPI active?
- Yes — Robert Mastroianni's NPI (1023107844) is active in the NPPES registry as of the last update on 2018-03-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.