Joanne Alonzo, D.O.
NPI 1124349246 · Internal Medicine Physician · Warren, MI
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanne Alonzo, D.O. is a Internal Medicine Physician provider in Warren, MI (NPI 1124349246).
Provider details
- NPI number
- 1124349246
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- Yes
- License
- 5101018832 (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
16 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
6,500 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 2,488 | $8 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 771 | $142 |
| Ultrasound of Heart With Color-Depicted Blood Flow, Rate, Direction and Valve Function93306 | 755 | $68 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 566 | $96 |
| Nuclear Medicine Studies of Heart Muscle at Rest and With Stress and Spect78452 | 269 | $75 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 50 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 386 | 140 |
| Apixabanbrand: Eliquis | 313 | 105 |
| Metoprolol Succinate | 308 | 122 |
| Amlodipine Besylate | 306 | 107 |
| Rosuvastatin Calcium | 198 | 71 |
| Spironolactone | 190 | 73 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$468 across 7 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
- 2010-06-14
- Last updated
- 2010-06-14
Frequently asked questions
- What is Joanne Alonzo's NPI number?
- Joanne Alonzo's National Provider Identifier (NPI) is 1124349246, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanne Alonzo's specialty?
- Joanne Alonzo is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joanne Alonzo located?
- Joanne Alonzo's practice location on file with NPPES is 11885 E 12 Mile Rd, Warren, MI 48093-3474.
- What is Joanne Alonzo's phone number?
- The practice phone number listed in the NPPES registry for Joanne Alonzo is (586) 582-6630.
- Does Joanne Alonzo accept Medicare?
- Joanne Alonzo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanne Alonzo's NPI active?
- Yes — Joanne Alonzo's NPI (1124349246) is active in the NPPES registry as of the last update on 2010-06-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.