John Demare, DO
NPI 1427031756 · Family Medicine Physician · Sterling Heights, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Demare, DO is a Family Medicine Physician provider in Sterling Heights, MI (NPI 1427031756).
Provider details
- NPI number
- 1427031756
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 5101007346 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
974 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 159 | $9 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 89 | $8 |
| Manual Urinalysis Test With Examination Using Microscope, Non-Automated81000 | 88 | $4 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 76 | $132 |
| X-Ray of Chest, 2 Views71046 | 69 | $31 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 65 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 34 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 219 | 64 |
| Losartan Potassium | 116 | 32 |
| Atorvastatin Calcium | 96 | 26 |
| Alprazolam | 89 | 31 |
| Amlodipine Besylate | 85 | 22 |
| Terazosin Hcl | 73 | 15 |
| Ezetimibe | 61 | 15 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$325 across 19 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-21
- Last updated
- 2010-06-29
Frequently asked questions
- What is John Demare's NPI number?
- John Demare's National Provider Identifier (NPI) is 1427031756, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Demare's specialty?
- John Demare is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Demare located?
- John Demare's practice location on file with NPPES is 13700 19 Mile Rd, Sterling Heights, MI 48313-2702.
- What is John Demare's phone number?
- The practice phone number listed in the NPPES registry for John Demare is (586) 247-6020.
- Does John Demare accept Medicare?
- John Demare is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Demare's NPI active?
- Yes — John Demare's NPI (1427031756) is active in the NPPES registry as of the last update on 2010-06-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.